Adding upstream version 2.0.0~beta.0+dfsg.upstream/2.0.0_beta.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel@debian.org>

144 files changed, 20826 insertions, 0 deletions

diff --git a/server/2fa.js b/server/2fa.js
new file mode 100644
index 0000000..c7076da
--- /dev/null
+++ b/server/2fa.js
@@ -0,0 +1,18 @@
+const { R } = require("redbean-node");
+
+class TwoFA {
+
+    /**
+     * Disable 2FA for specified user
+     * @param {number} userID ID of user to disable
+     * @returns {Promise<void>}
+     */
+    static async disable2FA(userID) {
+        return await R.exec("UPDATE `user` SET twofa_status = 0 WHERE id = ? ", [
+            userID,
+        ]);
+    }
+
+}
+
+module.exports = TwoFA;
diff --git a/server/auth.js b/server/auth.js
new file mode 100644
index 0000000..597cf3d
--- /dev/null
+++ b/server/auth.js
@@ -0,0 +1,179 @@
+const basicAuth = require("express-basic-auth");
+const passwordHash = require("./password-hash");
+const { R } = require("redbean-node");
+const { setting } = require("./util-server");
+const { log } = require("../src/util");
+const { loginRateLimiter, apiRateLimiter } = require("./rate-limiter");
+const { Settings } = require("./settings");
+const dayjs = require("dayjs");
+
+/**
+ * Login to web app
+ * @param {string} username Username to login with
+ * @param {string} password Password to login with
+ * @returns {Promise<(Bean|null)>} User or null if login failed
+ */
+exports.login = async function (username, password) {
+    if (typeof username !== "string" || typeof password !== "string") {
+        return null;
+    }
+
+    let user = await R.findOne("user", " username = ? AND active = 1 ", [
+        username,
+    ]);
+
+    if (user && passwordHash.verify(password, user.password)) {
+        // Upgrade the hash to bcrypt
+        if (passwordHash.needRehash(user.password)) {
+            await R.exec("UPDATE `user` SET password = ? WHERE id = ? ", [
+                passwordHash.generate(password),
+                user.id,
+            ]);
+        }
+        return user;
+    }
+
+    return null;
+};
+
+/**
+ * Validate a provided API key
+ * @param {string} key API key to verify
+ * @returns {boolean} API is ok?
+ */
+async function verifyAPIKey(key) {
+    if (typeof key !== "string") {
+        return false;
+    }
+
+    // uk prefix + key ID is before _
+    let index = key.substring(2, key.indexOf("_"));
+    let clear = key.substring(key.indexOf("_") + 1, key.length);
+
+    let hash = await R.findOne("api_key", " id=? ", [ index ]);
+
+    if (hash === null) {
+        return false;
+    }
+
+    let current = dayjs();
+    let expiry = dayjs(hash.expires);
+    if (expiry.diff(current) < 0 || !hash.active) {
+        return false;
+    }
+
+    return hash && passwordHash.verify(clear, hash.key);
+}
+
+/**
+ * Callback for basic auth authorizers
+ * @callback authCallback
+ * @param {any} err Any error encountered
+ * @param {boolean} authorized Is the client authorized?
+ */
+
+/**
+ * Custom authorizer for express-basic-auth
+ * @param {string} username Username to login with
+ * @param {string} password Password to login with
+ * @param {authCallback} callback Callback to handle login result
+ * @returns {void}
+ */
+function apiAuthorizer(username, password, callback) {
+    // API Rate Limit
+    apiRateLimiter.pass(null, 0).then((pass) => {
+        if (pass) {
+            verifyAPIKey(password).then((valid) => {
+                if (!valid) {
+                    log.warn("api-auth", "Failed API auth attempt: invalid API Key");
+                }
+                callback(null, valid);
+                // Only allow a set number of api requests per minute
+                // (currently set to 60)
+                apiRateLimiter.removeTokens(1);
+            });
+        } else {
+            log.warn("api-auth", "Failed API auth attempt: rate limit exceeded");
+            callback(null, false);
+        }
+    });
+}
+
+/**
+ * Custom authorizer for express-basic-auth
+ * @param {string} username Username to login with
+ * @param {string} password Password to login with
+ * @param {authCallback} callback Callback to handle login result
+ * @returns {void}
+ */
+function userAuthorizer(username, password, callback) {
+    // Login Rate Limit
+    loginRateLimiter.pass(null, 0).then((pass) => {
+        if (pass) {
+            exports.login(username, password).then((user) => {
+                callback(null, user != null);
+
+                if (user == null) {
+                    log.warn("basic-auth", "Failed basic auth attempt: invalid username/password");
+                    loginRateLimiter.removeTokens(1);
+                }
+            });
+        } else {
+            log.warn("basic-auth", "Failed basic auth attempt: rate limit exceeded");
+            callback(null, false);
+        }
+    });
+}
+
+/**
+ * Use basic auth if auth is not disabled
+ * @param {express.Request} req Express request object
+ * @param {express.Response} res Express response object
+ * @param {express.NextFunction} next Next handler in chain
+ * @returns {Promise<void>}
+ */
+exports.basicAuth = async function (req, res, next) {
+    const middleware = basicAuth({
+        authorizer: userAuthorizer,
+        authorizeAsync: true,
+        challenge: true,
+    });
+
+    const disabledAuth = await setting("disableAuth");
+
+    if (!disabledAuth) {
+        middleware(req, res, next);
+    } else {
+        next();
+    }
+};
+
+/**
+ * Use use API Key if API keys enabled, else use basic auth
+ * @param {express.Request} req Express request object
+ * @param {express.Response} res Express response object
+ * @param {express.NextFunction} next Next handler in chain
+ * @returns {Promise<void>}
+ */
+exports.apiAuth = async function (req, res, next) {
+    if (!await Settings.get("disableAuth")) {
+        let usingAPIKeys = await Settings.get("apiKeysEnabled");
+        let middleware;
+        if (usingAPIKeys) {
+            middleware = basicAuth({
+                authorizer: apiAuthorizer,
+                authorizeAsync: true,
+                challenge: true,
+            });
+        } else {
+            middleware = basicAuth({
+                authorizer: userAuthorizer,
+                authorizeAsync: true,
+                challenge: true,
+            });
+        }
+        middleware(req, res, next);
+    } else {
+        next();
+    }
+};
diff --git a/server/check-version.js b/server/check-version.js
new file mode 100644
index 0000000..c6d5cfb
--- /dev/null
+++ b/server/check-version.js
@@ -0,0 +1,69 @@
+const { setSetting, setting } = require("./util-server");
+const axios = require("axios");
+const compareVersions = require("compare-versions");
+const { log } = require("../src/util");
+
+exports.version = require("../package.json").version;
+exports.latestVersion = null;
+
+// How much time in ms to wait between update checks
+const UPDATE_CHECKER_INTERVAL_MS = 1000 * 60 * 60 * 48;
+const UPDATE_CHECKER_LATEST_VERSION_URL = "https://uptime.kuma.pet/version";
+
+let interval;
+
+exports.startInterval = () => {
+    let check = async () => {
+        if (await setting("checkUpdate") === false) {
+            return;
+        }
+
+        log.debug("update-checker", "Retrieving latest versions");
+
+        try {
+            const res = await axios.get(UPDATE_CHECKER_LATEST_VERSION_URL);
+
+            // For debug
+            if (process.env.TEST_CHECK_VERSION === "1") {
+                res.data.slow = "1000.0.0";
+            }
+
+            let checkBeta = await setting("checkBeta");
+
+            if (checkBeta && res.data.beta) {
+                if (compareVersions.compare(res.data.beta, res.data.slow, ">")) {
+                    exports.latestVersion = res.data.beta;
+                    return;
+                }
+            }
+
+            if (res.data.slow) {
+                exports.latestVersion = res.data.slow;
+            }
+
+        } catch (_) {
+            log.info("update-checker", "Failed to check for new versions");
+        }
+
+    };
+
+    check();
+    interval = setInterval(check, UPDATE_CHECKER_INTERVAL_MS);
+};
+
+/**
+ * Enable the check update feature
+ * @param {boolean} value Should the check update feature be enabled?
+ * @returns {Promise<void>}
+ */
+exports.enableCheckUpdate = async (value) => {
+    await setSetting("checkUpdate", value);
+
+    clearInterval(interval);
+
+    if (value) {
+        exports.startInterval();
+    }
+};
+
+exports.socket = null;
diff --git a/server/client.js b/server/client.js
new file mode 100644
index 0000000..72f0a4e
--- /dev/null
+++ b/server/client.js
@@ -0,0 +1,252 @@
+/*
+ * For Client Socket
+ */
+const { TimeLogger } = require("../src/util");
+const { R } = require("redbean-node");
+const { UptimeKumaServer } = require("./uptime-kuma-server");
+const server = UptimeKumaServer.getInstance();
+const io = server.io;
+const { setting } = require("./util-server");
+const checkVersion = require("./check-version");
+const Database = require("./database");
+
+/**
+ * Send list of notification providers to client
+ * @param {Socket} socket Socket.io socket instance
+ * @returns {Promise<Bean[]>} List of notifications
+ */
+async function sendNotificationList(socket) {
+    const timeLogger = new TimeLogger();
+
+    let result = [];
+    let list = await R.find("notification", " user_id = ? ", [
+        socket.userID,
+    ]);
+
+    for (let bean of list) {
+        let notificationObject = bean.export();
+        notificationObject.isDefault = (notificationObject.isDefault === 1);
+        notificationObject.active = (notificationObject.active === 1);
+        result.push(notificationObject);
+    }
+
+    io.to(socket.userID).emit("notificationList", result);
+
+    timeLogger.print("Send Notification List");
+
+    return list;
+}
+
+/**
+ * Send Heartbeat History list to socket
+ * @param {Socket} socket Socket.io instance
+ * @param {number} monitorID ID of monitor to send heartbeat history
+ * @param {boolean} toUser  True = send to all browsers with the same user id, False = send to the current browser only
+ * @param {boolean} overwrite Overwrite client-side's heartbeat list
+ * @returns {Promise<void>}
+ */
+async function sendHeartbeatList(socket, monitorID, toUser = false, overwrite = false) {
+    let list = await R.getAll(`
+        SELECT * FROM heartbeat
+        WHERE monitor_id = ?
+        ORDER BY time DESC
+        LIMIT 100
+    `, [
+        monitorID,
+    ]);
+
+    let result = list.reverse();
+
+    if (toUser) {
+        io.to(socket.userID).emit("heartbeatList", monitorID, result, overwrite);
+    } else {
+        socket.emit("heartbeatList", monitorID, result, overwrite);
+    }
+}
+
+/**
+ * Important Heart beat list (aka event list)
+ * @param {Socket} socket Socket.io instance
+ * @param {number} monitorID ID of monitor to send heartbeat history
+ * @param {boolean} toUser  True = send to all browsers with the same user id, False = send to the current browser only
+ * @param {boolean} overwrite Overwrite client-side's heartbeat list
+ * @returns {Promise<void>}
+ */
+async function sendImportantHeartbeatList(socket, monitorID, toUser = false, overwrite = false) {
+    const timeLogger = new TimeLogger();
+
+    let list = await R.find("heartbeat", `
+        monitor_id = ?
+        AND important = 1
+        ORDER BY time DESC
+        LIMIT 500
+    `, [
+        monitorID,
+    ]);
+
+    timeLogger.print(`[Monitor: ${monitorID}] sendImportantHeartbeatList`);
+
+    if (toUser) {
+        io.to(socket.userID).emit("importantHeartbeatList", monitorID, list, overwrite);
+    } else {
+        socket.emit("importantHeartbeatList", monitorID, list, overwrite);
+    }
+
+}
+
+/**
+ * Emit proxy list to client
+ * @param {Socket} socket Socket.io socket instance
+ * @returns {Promise<Bean[]>} List of proxies
+ */
+async function sendProxyList(socket) {
+    const timeLogger = new TimeLogger();
+
+    const list = await R.find("proxy", " user_id = ? ", [ socket.userID ]);
+    io.to(socket.userID).emit("proxyList", list.map(bean => bean.export()));
+
+    timeLogger.print("Send Proxy List");
+
+    return list;
+}
+
+/**
+ * Emit API key list to client
+ * @param {Socket} socket Socket.io socket instance
+ * @returns {Promise<void>}
+ */
+async function sendAPIKeyList(socket) {
+    const timeLogger = new TimeLogger();
+
+    let result = [];
+    const list = await R.find(
+        "api_key",
+        "user_id=?",
+        [ socket.userID ],
+    );
+
+    for (let bean of list) {
+        result.push(bean.toPublicJSON());
+    }
+
+    io.to(socket.userID).emit("apiKeyList", result);
+    timeLogger.print("Sent API Key List");
+
+    return list;
+}
+
+/**
+ * Emits the version information to the client.
+ * @param {Socket} socket Socket.io socket instance
+ * @param {boolean} hideVersion Should we hide the version information in the response?
+ * @returns {Promise<void>}
+ */
+async function sendInfo(socket, hideVersion = false) {
+    let version;
+    let latestVersion;
+    let isContainer;
+    let dbType;
+
+    if (!hideVersion) {
+        version = checkVersion.version;
+        latestVersion = checkVersion.latestVersion;
+        isContainer = (process.env.UPTIME_KUMA_IS_CONTAINER === "1");
+        dbType = Database.dbConfig.type;
+    }
+
+    socket.emit("info", {
+        version,
+        latestVersion,
+        isContainer,
+        dbType,
+        primaryBaseURL: await setting("primaryBaseURL"),
+        serverTimezone: await server.getTimezone(),
+        serverTimezoneOffset: server.getTimezoneOffset(),
+    });
+}
+
+/**
+ * Send list of docker hosts to client
+ * @param {Socket} socket Socket.io socket instance
+ * @returns {Promise<Bean[]>} List of docker hosts
+ */
+async function sendDockerHostList(socket) {
+    const timeLogger = new TimeLogger();
+
+    let result = [];
+    let list = await R.find("docker_host", " user_id = ? ", [
+        socket.userID,
+    ]);
+
+    for (let bean of list) {
+        result.push(bean.toJSON());
+    }
+
+    io.to(socket.userID).emit("dockerHostList", result);
+
+    timeLogger.print("Send Docker Host List");
+
+    return list;
+}
+
+/**
+ * Send list of docker hosts to client
+ * @param {Socket} socket Socket.io socket instance
+ * @returns {Promise<Bean[]>} List of docker hosts
+ */
+async function sendRemoteBrowserList(socket) {
+    const timeLogger = new TimeLogger();
+
+    let result = [];
+    let list = await R.find("remote_browser", " user_id = ? ", [
+        socket.userID,
+    ]);
+
+    for (let bean of list) {
+        result.push(bean.toJSON());
+    }
+
+    io.to(socket.userID).emit("remoteBrowserList", result);
+
+    timeLogger.print("Send Remote Browser List");
+
+    return list;
+}
+
+/**
+ * Send list of monitor types to client
+ * @param {Socket} socket Socket.io socket instance
+ * @returns {Promise<void>}
+ */
+async function sendMonitorTypeList(socket) {
+    const result = Object.entries(UptimeKumaServer.monitorTypeList).map(([ key, type ]) => {
+        return [ key, {
+            supportsConditions: type.supportsConditions,
+            conditionVariables: type.conditionVariables.map(v => {
+                return {
+                    id: v.id,
+                    operators: v.operators.map(o => {
+                        return {
+                            id: o.id,
+                            caption: o.caption,
+                        };
+                    }),
+                };
+            }),
+        }];
+    });
+
+    io.to(socket.userID).emit("monitorTypeList", Object.fromEntries(result));
+}
+
+module.exports = {
+    sendNotificationList,
+    sendImportantHeartbeatList,
+    sendHeartbeatList,
+    sendProxyList,
+    sendAPIKeyList,
+    sendInfo,
+    sendDockerHostList,
+    sendRemoteBrowserList,
+    sendMonitorTypeList,
+};
diff --git a/server/config.js b/server/config.js
new file mode 100644
index 0000000..515b904
--- /dev/null
+++ b/server/config.js
@@ -0,0 +1,46 @@
+const isFreeBSD = /^freebsd/.test(process.platform);
+
+// Interop with browser
+const args = (typeof process !== "undefined") ? require("args-parser")(process.argv) : {};
+
+// If host is omitted, the server will accept connections on the unspecified IPv6 address (::) when IPv6 is available and the unspecified IPv4 address (0.0.0.0) otherwise.
+// Dual-stack support for (::)
+// Also read HOST if not FreeBSD, as HOST is a system environment variable in FreeBSD
+let hostEnv = isFreeBSD ? null : process.env.HOST;
+const hostname = args.host || process.env.UPTIME_KUMA_HOST || hostEnv;
+
+const port = [ args.port, process.env.UPTIME_KUMA_PORT, process.env.PORT, 3001 ]
+    .map(portValue => parseInt(portValue))
+    .find(portValue => !isNaN(portValue));
+
+const sslKey = args["ssl-key"] || process.env.UPTIME_KUMA_SSL_KEY || process.env.SSL_KEY || undefined;
+const sslCert = args["ssl-cert"] || process.env.UPTIME_KUMA_SSL_CERT || process.env.SSL_CERT || undefined;
+const sslKeyPassphrase = args["ssl-key-passphrase"] || process.env.UPTIME_KUMA_SSL_KEY_PASSPHRASE || process.env.SSL_KEY_PASSPHRASE || undefined;
+
+const isSSL = sslKey && sslCert;
+
+/**
+ * Get the local WebSocket URL
+ * @returns {string} The local WebSocket URL
+ */
+function getLocalWebSocketURL() {
+    const protocol = isSSL ? "wss" : "ws";
+    const host = hostname || "localhost";
+    return `${protocol}://${host}:${port}`;
+}
+
+const localWebSocketURL = getLocalWebSocketURL();
+
+const demoMode = args["demo"] || false;
+
+module.exports = {
+    args,
+    hostname,
+    port,
+    sslKey,
+    sslCert,
+    sslKeyPassphrase,
+    isSSL,
+    localWebSocketURL,
+    demoMode,
+};
diff --git a/server/database.js b/server/database.js
new file mode 100644
index 0000000..3927d6d
--- /dev/null
+++ b/server/database.js
@@ -0,0 +1,912 @@
+const fs = require("fs");
+const { R } = require("redbean-node");
+const { setSetting, setting } = require("./util-server");
+const { log, sleep } = require("../src/util");
+const knex = require("knex");
+const path = require("path");
+const { EmbeddedMariaDB } = require("./embedded-mariadb");
+const mysql = require("mysql2/promise");
+const { Settings } = require("./settings");
+const { UptimeCalculator } = require("./uptime-calculator");
+const dayjs = require("dayjs");
+const { SimpleMigrationServer } = require("./utils/simple-migration-server");
+const KumaColumnCompiler = require("./utils/knex/lib/dialects/mysql2/schema/mysql2-columncompiler");
+
+/**
+ * Database & App Data Folder
+ */
+class Database {
+
+    /**
+     * Boostrap database for SQLite
+     * @type {string}
+     */
+    static templatePath = "./db/kuma.db";
+
+    /**
+     * Data Dir (Default: ./data)
+     * @type {string}
+     */
+    static dataDir;
+
+    /**
+     * User Upload Dir (Default: ./data/upload)
+     * @type {string}
+     */
+    static uploadDir;
+
+    /**
+     * Chrome Screenshot Dir (Default: ./data/screenshots)
+     * @type {string}
+     */
+    static screenshotDir;
+
+    /**
+     * SQLite file path (Default: ./data/kuma.db)
+     * @type {string}
+     */
+    static sqlitePath;
+
+    /**
+     * For storing Docker TLS certs (Default: ./data/docker-tls)
+     * @type {string}
+     */
+    static dockerTLSDir;
+
+    /**
+     * @type {boolean}
+     */
+    static patched = false;
+
+    /**
+     * SQLite only
+     * Add patch filename in key
+     * Values:
+     *      true: Add it regardless of order
+     *      false: Do nothing
+     *      { parents: []}: Need parents before add it
+     *  @deprecated
+     */
+    static patchList = {
+        "patch-setting-value-type.sql": true,
+        "patch-improve-performance.sql": true,
+        "patch-2fa.sql": true,
+        "patch-add-retry-interval-monitor.sql": true,
+        "patch-incident-table.sql": true,
+        "patch-group-table.sql": true,
+        "patch-monitor-push_token.sql": true,
+        "patch-http-monitor-method-body-and-headers.sql": true,
+        "patch-2fa-invalidate-used-token.sql": true,
+        "patch-notification_sent_history.sql": true,
+        "patch-monitor-basic-auth.sql": true,
+        "patch-add-docker-columns.sql": true,
+        "patch-status-page.sql": true,
+        "patch-proxy.sql": true,
+        "patch-monitor-expiry-notification.sql": true,
+        "patch-status-page-footer-css.sql": true,
+        "patch-added-mqtt-monitor.sql": true,
+        "patch-add-clickable-status-page-link.sql": true,
+        "patch-add-sqlserver-monitor.sql": true,
+        "patch-add-other-auth.sql": { parents: [ "patch-monitor-basic-auth.sql" ] },
+        "patch-grpc-monitor.sql": true,
+        "patch-add-radius-monitor.sql": true,
+        "patch-monitor-add-resend-interval.sql": true,
+        "patch-ping-packet-size.sql": true,
+        "patch-maintenance-table2.sql": true,
+        "patch-add-gamedig-monitor.sql": true,
+        "patch-add-google-analytics-status-page-tag.sql": true,
+        "patch-http-body-encoding.sql": true,
+        "patch-add-description-monitor.sql": true,
+        "patch-api-key-table.sql": true,
+        "patch-monitor-tls.sql": true,
+        "patch-maintenance-cron.sql": true,
+        "patch-add-parent-monitor.sql": true,
+        "patch-add-invert-keyword.sql": true,
+        "patch-added-json-query.sql": true,
+        "patch-added-kafka-producer.sql": true,
+        "patch-add-certificate-expiry-status-page.sql": true,
+        "patch-monitor-oauth-cc.sql": true,
+        "patch-add-timeout-monitor.sql": true,
+        "patch-add-gamedig-given-port.sql": true,
+        "patch-notification-config.sql": true,
+        "patch-fix-kafka-producer-booleans.sql": true,
+        "patch-timeout.sql": true,
+        "patch-monitor-tls-info-add-fk.sql": true, // The last file so far converted to a knex migration file
+    };
+
+    /**
+     * The final version should be 10 after merged tag feature
+     * @deprecated Use patchList for any new feature
+     */
+    static latestVersion = 10;
+
+    static noReject = true;
+
+    static dbConfig = {};
+
+    static knexMigrationsPath = "./db/knex_migrations";
+
+    /**
+     * Initialize the data directory
+     * @param {object} args Arguments to initialize DB with
+     * @returns {void}
+     */
+    static initDataDir(args) {
+        // Data Directory (must be end with "/")
+        Database.dataDir = process.env.DATA_DIR || args["data-dir"] || "./data/";
+
+        Database.sqlitePath = path.join(Database.dataDir, "kuma.db");
+        if (! fs.existsSync(Database.dataDir)) {
+            fs.mkdirSync(Database.dataDir, { recursive: true });
+        }
+
+        Database.uploadDir = path.join(Database.dataDir, "upload/");
+
+        if (! fs.existsSync(Database.uploadDir)) {
+            fs.mkdirSync(Database.uploadDir, { recursive: true });
+        }
+
+        // Create screenshot dir
+        Database.screenshotDir = path.join(Database.dataDir, "screenshots/");
+        if (! fs.existsSync(Database.screenshotDir)) {
+            fs.mkdirSync(Database.screenshotDir, { recursive: true });
+        }
+
+        Database.dockerTLSDir = path.join(Database.dataDir, "docker-tls/");
+        if (! fs.existsSync(Database.dockerTLSDir)) {
+            fs.mkdirSync(Database.dockerTLSDir, { recursive: true });
+        }
+
+        log.info("server", `Data Dir: ${Database.dataDir}`);
+    }
+
+    /**
+     * Read the database config
+     * @throws {Error} If the config is invalid
+     * @typedef {string|undefined} envString
+     * @returns {{type: "sqlite"} | {type:envString, hostname:envString, port:envString, database:envString, username:envString, password:envString}} Database config
+     */
+    static readDBConfig() {
+        let dbConfig;
+
+        let dbConfigString = fs.readFileSync(path.join(Database.dataDir, "db-config.json")).toString("utf-8");
+        dbConfig = JSON.parse(dbConfigString);
+
+        if (typeof dbConfig !== "object") {
+            throw new Error("Invalid db-config.json, it must be an object");
+        }
+
+        if (typeof dbConfig.type !== "string") {
+            throw new Error("Invalid db-config.json, type must be a string");
+        }
+        return dbConfig;
+    }
+
+    /**
+     * @typedef {string|undefined} envString
+     * @param {{type: "sqlite"} | {type:envString, hostname:envString, port:envString, database:envString, username:envString, password:envString}} dbConfig the database configuration that should be written
+     * @returns {void}
+     */
+    static writeDBConfig(dbConfig) {
+        fs.writeFileSync(path.join(Database.dataDir, "db-config.json"), JSON.stringify(dbConfig, null, 4));
+    }
+
+    /**
+     * Connect to the database
+     * @param {boolean} testMode Should the connection be started in test mode?
+     * @param {boolean} autoloadModels Should models be automatically loaded?
+     * @param {boolean} noLog Should logs not be output?
+     * @returns {Promise<void>}
+     */
+    static async connect(testMode = false, autoloadModels = true, noLog = false) {
+        // Patch "mysql2" knex client
+        // Workaround: Tried extending the ColumnCompiler class, but it didn't work for unknown reasons, so I override the function via prototype
+        const { getDialectByNameOrAlias } = require("knex/lib/dialects");
+        const mysql2 = getDialectByNameOrAlias("mysql2");
+        mysql2.prototype.columnCompiler = function () {
+            return new KumaColumnCompiler(this, ...arguments);
+        };
+
+        const acquireConnectionTimeout = 120 * 1000;
+        let dbConfig;
+        try {
+            dbConfig = this.readDBConfig();
+            Database.dbConfig = dbConfig;
+        } catch (err) {
+            log.warn("db", err.message);
+            dbConfig = {
+                type: "sqlite",
+            };
+        }
+
+        let config = {};
+
+        let mariadbPoolConfig = {
+            min: 0,
+            max: 10,
+            idleTimeoutMillis: 30000,
+        };
+
+        log.info("db", `Database Type: ${dbConfig.type}`);
+
+        if (dbConfig.type === "sqlite") {
+
+            if (! fs.existsSync(Database.sqlitePath)) {
+                log.info("server", "Copying Database");
+                fs.copyFileSync(Database.templatePath, Database.sqlitePath);
+            }
+
+            const Dialect = require("knex/lib/dialects/sqlite3/index.js");
+            Dialect.prototype._driver = () => require("@louislam/sqlite3");
+
+            config = {
+                client: Dialect,
+                connection: {
+                    filename: Database.sqlitePath,
+                    acquireConnectionTimeout: acquireConnectionTimeout,
+                },
+                useNullAsDefault: true,
+                pool: {
+                    min: 1,
+                    max: 1,
+                    idleTimeoutMillis: 120 * 1000,
+                    propagateCreateError: false,
+                    acquireTimeoutMillis: acquireConnectionTimeout,
+                }
+            };
+        } else if (dbConfig.type === "mariadb") {
+            if (!/^\w+$/.test(dbConfig.dbName)) {
+                throw Error("Invalid database name. A database name can only consist of letters, numbers and underscores");
+            }
+
+            const connection = await mysql.createConnection({
+                host: dbConfig.hostname,
+                port: dbConfig.port,
+                user: dbConfig.username,
+                password: dbConfig.password,
+            });
+
+            await connection.execute("CREATE DATABASE IF NOT EXISTS " + dbConfig.dbName + " CHARACTER SET utf8mb4");
+            connection.end();
+
+            config = {
+                client: "mysql2",
+                connection: {
+                    host: dbConfig.hostname,
+                    port: dbConfig.port,
+                    user: dbConfig.username,
+                    password: dbConfig.password,
+                    database: dbConfig.dbName,
+                    timezone: "Z",
+                    typeCast: function (field, next) {
+                        if (field.type === "DATETIME") {
+                            // Do not perform timezone conversion
+                            return field.string();
+                        }
+                        return next();
+                    },
+                },
+                pool: mariadbPoolConfig,
+            };
+        } else if (dbConfig.type === "embedded-mariadb") {
+            let embeddedMariaDB = EmbeddedMariaDB.getInstance();
+            await embeddedMariaDB.start();
+            log.info("mariadb", "Embedded MariaDB started");
+            config = {
+                client: "mysql2",
+                connection: {
+                    socketPath: embeddedMariaDB.socketPath,
+                    user: "node",
+                    database: "kuma",
+                    timezone: "Z",
+                    typeCast: function (field, next) {
+                        if (field.type === "DATETIME") {
+                            // Do not perform timezone conversion
+                            return field.string();
+                        }
+                        return next();
+                    },
+                },
+                pool: mariadbPoolConfig,
+            };
+        } else {
+            throw new Error("Unknown Database type: " + dbConfig.type);
+        }
+
+        // Set to utf8mb4 for MariaDB
+        if (dbConfig.type.endsWith("mariadb")) {
+            config.pool = {
+                afterCreate(conn, done) {
+                    conn.query("SET CHARACTER SET utf8mb4;", (err) => done(err, conn));
+                },
+            };
+        }
+
+        const knexInstance = knex(config);
+
+        R.setup(knexInstance);
+
+        if (process.env.SQL_LOG === "1") {
+            R.debug(true);
+        }
+
+        // Auto map the model to a bean object
+        R.freeze(true);
+
+        if (autoloadModels) {
+            await R.autoloadModels("./server/model");
+        }
+
+        if (dbConfig.type === "sqlite") {
+            await this.initSQLite(testMode, noLog);
+        } else if (dbConfig.type.endsWith("mariadb")) {
+            await this.initMariaDB();
+        }
+    }
+
+    /**
+     @param {boolean} testMode Should the connection be started in test mode?
+     @param {boolean} noLog Should logs not be output?
+     @returns {Promise<void>}
+     */
+    static async initSQLite(testMode, noLog) {
+        await R.exec("PRAGMA foreign_keys = ON");
+        if (testMode) {
+            // Change to MEMORY
+            await R.exec("PRAGMA journal_mode = MEMORY");
+        } else {
+            // Change to WAL
+            await R.exec("PRAGMA journal_mode = WAL");
+        }
+        await R.exec("PRAGMA cache_size = -12000");
+        await R.exec("PRAGMA auto_vacuum = INCREMENTAL");
+
+        // This ensures that an operating system crash or power failure will not corrupt the database.
+        // FULL synchronous is very safe, but it is also slower.
+        // Read more: https://sqlite.org/pragma.html#pragma_synchronous
+        await R.exec("PRAGMA synchronous = NORMAL");
+
+        if (!noLog) {
+            log.debug("db", "SQLite config:");
+            log.debug("db", await R.getAll("PRAGMA journal_mode"));
+            log.debug("db", await R.getAll("PRAGMA cache_size"));
+            log.debug("db", "SQLite Version: " + await R.getCell("SELECT sqlite_version()"));
+        }
+    }
+
+    /**
+     * Initialize MariaDB
+     * @returns {Promise<void>}
+     */
+    static async initMariaDB() {
+        log.debug("db", "Checking if MariaDB database exists...");
+
+        let hasTable = await R.hasTable("docker_host");
+        if (!hasTable) {
+            const { createTables } = require("../db/knex_init_db");
+            await createTables();
+        } else {
+            log.debug("db", "MariaDB database already exists");
+        }
+    }
+
+    /**
+     * Patch the database
+     * @param {number} port Start the migration server for aggregate tables on this port if provided
+     * @param {string} hostname Start the migration server for aggregate tables on this hostname if provided
+     * @returns {Promise<void>}
+     */
+    static async patch(port = undefined, hostname = undefined) {
+        // Still need to keep this for old versions of Uptime Kuma
+        if (Database.dbConfig.type === "sqlite") {
+            await this.patchSqlite();
+        }
+
+        // Using knex migrations
+        // https://knexjs.org/guide/migrations.html
+        // https://gist.github.com/NigelEarle/70db130cc040cc2868555b29a0278261
+        try {
+            // Disable foreign key check for SQLite
+            // Known issue of knex: https://github.com/drizzle-team/drizzle-orm/issues/1813
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA foreign_keys = OFF");
+            }
+
+            await R.knex.migrate.latest({
+                directory: Database.knexMigrationsPath,
+            });
+
+            // Enable foreign key check for SQLite
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA foreign_keys = ON");
+            }
+
+            await this.migrateAggregateTable(port, hostname);
+
+        } catch (e) {
+            // Allow missing patch files for downgrade or testing pr.
+            if (e.message.includes("the following files are missing:")) {
+                log.warn("db", e.message);
+                log.warn("db", "Database migration failed, you may be downgrading Uptime Kuma.");
+            } else {
+                log.error("db", "Database migration failed");
+                throw e;
+            }
+        }
+    }
+
+    /**
+     * TODO
+     * @returns {Promise<void>}
+     */
+    static async rollbackLatestPatch() {
+
+    }
+
+    /**
+     * Patch the database for SQLite
+     * @returns {Promise<void>}
+     * @deprecated
+     */
+    static async patchSqlite() {
+        let version = parseInt(await setting("database_version"));
+
+        if (! version) {
+            version = 0;
+        }
+
+        if (version !== this.latestVersion) {
+            log.info("db", "Your database version: " + version);
+            log.info("db", "Latest database version: " + this.latestVersion);
+        }
+
+        if (version === this.latestVersion) {
+            log.debug("db", "Database patch not needed");
+        } else if (version > this.latestVersion) {
+            log.warn("db", "Warning: Database version is newer than expected");
+        } else {
+            log.info("db", "Database patch is needed");
+
+            // Try catch anything here
+            try {
+                for (let i = version + 1; i <= this.latestVersion; i++) {
+                    const sqlFile = `./db/old_migrations/patch${i}.sql`;
+                    log.info("db", `Patching ${sqlFile}`);
+                    await Database.importSQLFile(sqlFile);
+                    log.info("db", `Patched ${sqlFile}`);
+                    await setSetting("database_version", i);
+                }
+            } catch (ex) {
+                await Database.close();
+
+                log.error("db", ex);
+                log.error("db", "Start Uptime-Kuma failed due to issue patching the database");
+                log.error("db", "Please submit a bug report if you still encounter the problem after restart: https://github.com/louislam/uptime-kuma/issues");
+
+                process.exit(1);
+            }
+        }
+
+        await this.patchSqlite2();
+        await this.migrateNewStatusPage();
+    }
+
+    /**
+     * Patch DB using new process
+     * Call it from patch() only
+     * @deprecated
+     * @private
+     * @returns {Promise<void>}
+     */
+    static async patchSqlite2() {
+        log.debug("db", "Database Patch 2.0 Process");
+        let databasePatchedFiles = await setting("databasePatchedFiles");
+
+        if (! databasePatchedFiles) {
+            databasePatchedFiles = {};
+        }
+
+        log.debug("db", "Patched files:");
+        log.debug("db", databasePatchedFiles);
+
+        try {
+            for (let sqlFilename in this.patchList) {
+                await this.patch2Recursion(sqlFilename, databasePatchedFiles);
+            }
+
+            if (this.patched) {
+                log.info("db", "Database Patched Successfully");
+            }
+
+        } catch (ex) {
+            await Database.close();
+
+            log.error("db", ex);
+            log.error("db", "Start Uptime-Kuma failed due to issue patching the database");
+            log.error("db", "Please submit the bug report if you still encounter the problem after restart: https://github.com/louislam/uptime-kuma/issues");
+
+            process.exit(1);
+        }
+
+        await setSetting("databasePatchedFiles", databasePatchedFiles);
+    }
+
+    /**
+     * SQlite only
+     * Migrate status page value in setting to "status_page" table
+     * @returns {Promise<void>}
+     */
+    static async migrateNewStatusPage() {
+
+        // Fix 1.13.0 empty slug bug
+        await R.exec("UPDATE status_page SET slug = 'empty-slug-recover' WHERE TRIM(slug) = ''");
+
+        let title = await setting("title");
+
+        if (title) {
+            console.log("Migrating Status Page");
+
+            let statusPageCheck = await R.findOne("status_page", " slug = 'default' ");
+
+            if (statusPageCheck !== null) {
+                console.log("Migrating Status Page - Skip, default slug record is already existing");
+                return;
+            }
+
+            let statusPage = R.dispense("status_page");
+            statusPage.slug = "default";
+            statusPage.title = title;
+            statusPage.description = await setting("description");
+            statusPage.icon = await setting("icon");
+            statusPage.theme = await setting("statusPageTheme");
+            statusPage.published = !!await setting("statusPagePublished");
+            statusPage.search_engine_index = !!await setting("searchEngineIndex");
+            statusPage.show_tags = !!await setting("statusPageTags");
+            statusPage.password = null;
+
+            if (!statusPage.title) {
+                statusPage.title = "My Status Page";
+            }
+
+            if (!statusPage.icon) {
+                statusPage.icon = "";
+            }
+
+            if (!statusPage.theme) {
+                statusPage.theme = "light";
+            }
+
+            let id = await R.store(statusPage);
+
+            await R.exec("UPDATE incident SET status_page_id = ? WHERE status_page_id IS NULL", [
+                id
+            ]);
+
+            await R.exec("UPDATE [group] SET status_page_id = ? WHERE status_page_id IS NULL", [
+                id
+            ]);
+
+            await R.exec("DELETE FROM setting WHERE type = 'statusPage'");
+
+            // Migrate Entry Page if it is status page
+            let entryPage = await setting("entryPage");
+
+            if (entryPage === "statusPage") {
+                await setSetting("entryPage", "statusPage-default", "general");
+            }
+
+            console.log("Migrating Status Page - Done");
+        }
+
+    }
+
+    /**
+     * Patch database using new patching process
+     * Used it patch2() only
+     * @private
+     * @param {string} sqlFilename Name of SQL file to load
+     * @param {object} databasePatchedFiles Patch status of database files
+     * @returns {Promise<void>}
+     */
+    static async patch2Recursion(sqlFilename, databasePatchedFiles) {
+        let value = this.patchList[sqlFilename];
+
+        if (! value) {
+            log.info("db", sqlFilename + " skip");
+            return;
+        }
+
+        // Check if patched
+        if (! databasePatchedFiles[sqlFilename]) {
+            log.info("db", sqlFilename + " is not patched");
+
+            if (value.parents) {
+                log.info("db", sqlFilename + " need parents");
+                for (let parentSQLFilename of value.parents) {
+                    await this.patch2Recursion(parentSQLFilename, databasePatchedFiles);
+                }
+            }
+
+            log.info("db", sqlFilename + " is patching");
+            this.patched = true;
+            await this.importSQLFile("./db/old_migrations/" + sqlFilename);
+            databasePatchedFiles[sqlFilename] = true;
+            log.info("db", sqlFilename + " was patched successfully");
+
+        } else {
+            log.debug("db", sqlFilename + " is already patched, skip");
+        }
+    }
+
+    /**
+     * Load an SQL file and execute it
+     * @param {string} filename Filename of SQL file to import
+     * @returns {Promise<void>}
+     */
+    static async importSQLFile(filename) {
+        // Sadly, multi sql statements is not supported by many sqlite libraries, I have to implement it myself
+        await R.getCell("SELECT 1");
+
+        let text = fs.readFileSync(filename).toString();
+
+        // Remove all comments (--)
+        let lines = text.split("\n");
+        lines = lines.filter((line) => {
+            return ! line.startsWith("--");
+        });
+
+        // Split statements by semicolon
+        // Filter out empty line
+        text = lines.join("\n");
+
+        let statements = text.split(";")
+            .map((statement) => {
+                return statement.trim();
+            })
+            .filter((statement) => {
+                return statement !== "";
+            });
+
+        for (let statement of statements) {
+            await R.exec(statement);
+        }
+    }
+
+    /**
+     * Special handle, because tarn.js throw a promise reject that cannot be caught
+     * @returns {Promise<void>}
+     */
+    static async close() {
+        const listener = (reason, p) => {
+            Database.noReject = false;
+        };
+        process.addListener("unhandledRejection", listener);
+
+        log.info("db", "Closing the database");
+
+        // Flush WAL to main database
+        if (Database.dbConfig.type === "sqlite") {
+            await R.exec("PRAGMA wal_checkpoint(TRUNCATE)");
+        }
+
+        while (true) {
+            Database.noReject = true;
+            await R.close();
+            await sleep(2000);
+
+            if (Database.noReject) {
+                break;
+            } else {
+                log.info("db", "Waiting to close the database");
+            }
+        }
+        log.info("db", "Database closed");
+
+        process.removeListener("unhandledRejection", listener);
+    }
+
+    /**
+     * Get the size of the database (SQLite only)
+     * @returns {number} Size of database
+     */
+    static getSize() {
+        if (Database.dbConfig.type === "sqlite") {
+            log.debug("db", "Database.getSize()");
+            let stats = fs.statSync(Database.sqlitePath);
+            log.debug("db", stats);
+            return stats.size;
+        }
+        return 0;
+    }
+
+    /**
+     * Shrink the database
+     * @returns {Promise<void>}
+     */
+    static async shrink() {
+        if (Database.dbConfig.type === "sqlite") {
+            await R.exec("VACUUM");
+        }
+    }
+
+    /**
+     * @returns {string} Get the SQL for the current time plus a number of hours
+     */
+    static sqlHourOffset() {
+        if (Database.dbConfig.type === "sqlite") {
+            return "DATETIME('now', ? || ' hours')";
+        } else {
+            return "DATE_ADD(NOW(), INTERVAL ? HOUR)";
+        }
+    }
+
+    /**
+     * Migrate the old data in the heartbeat table to the new format (stat_daily, stat_hourly, stat_minutely)
+     * It should be run once while upgrading V1 to V2
+     *
+     * Normally, it should be in transaction, but UptimeCalculator wasn't designed to be in transaction before that.
+     * I don't want to heavily modify the UptimeCalculator, so it is not in transaction.
+     * Run `npm run reset-migrate-aggregate-table-state` to reset, in case the migration is interrupted.
+     * @param {number} port Start the migration server on this port if provided
+     * @param {string} hostname Start the migration server on this hostname if provided
+     * @returns {Promise<void>}
+     */
+    static async migrateAggregateTable(port, hostname = undefined) {
+        log.debug("db", "Enter Migrate Aggregate Table function");
+
+        // Add a setting for 2.0.0-dev users to skip this migration
+        if (process.env.SET_MIGRATE_AGGREGATE_TABLE_TO_TRUE === "1") {
+            log.warn("db", "SET_MIGRATE_AGGREGATE_TABLE_TO_TRUE is set to 1, skipping aggregate table migration forever (for 2.0.0-dev users)");
+            await Settings.set("migrateAggregateTableState", "migrated");
+        }
+
+        let migrateState = await Settings.get("migrateAggregateTableState");
+
+        // Skip if already migrated
+        // If it is migrating, it possibly means the migration was interrupted, or the migration is in progress
+        if (migrateState === "migrated") {
+            log.debug("db", "Migrated aggregate table already, skip");
+            return;
+        } else if (migrateState === "migrating") {
+            log.warn("db", "Aggregate table migration is already in progress, or it was interrupted");
+            throw new Error("Aggregate table migration is already in progress");
+        }
+
+        /**
+         * Start migration server for displaying the migration status
+         * @type {SimpleMigrationServer}
+         */
+        let migrationServer;
+        let msg;
+
+        if (port) {
+            migrationServer = new SimpleMigrationServer();
+            await migrationServer.start(port, hostname);
+        }
+
+        log.info("db", "Migrating Aggregate Table");
+
+        log.info("db", "Getting list of unique monitors");
+
+        // Get a list of unique monitors from the heartbeat table, using raw sql
+        let monitors = await R.getAll(`
+            SELECT DISTINCT monitor_id
+            FROM heartbeat
+            ORDER BY monitor_id ASC
+        `);
+
+        // Stop if stat_* tables are not empty
+        for (let table of [ "stat_minutely", "stat_hourly", "stat_daily" ]) {
+            let countResult = await R.getRow(`SELECT COUNT(*) AS count FROM ${table}`);
+            let count = countResult.count;
+            if (count > 0) {
+                log.warn("db", `Aggregate table ${table} is not empty, migration will not be started (Maybe you were using 2.0.0-dev?)`);
+                await migrationServer?.stop();
+                return;
+            }
+        }
+
+        await Settings.set("migrateAggregateTableState", "migrating");
+
+        let progressPercent = 0;
+        let part = 100 / monitors.length;
+        let i = 1;
+        for (let monitor of monitors) {
+            // Get a list of unique dates from the heartbeat table, using raw sql
+            let dates = await R.getAll(`
+                SELECT DISTINCT DATE(time) AS date
+                FROM heartbeat
+                WHERE monitor_id = ?
+                ORDER BY date ASC
+            `, [
+                monitor.monitor_id
+            ]);
+
+            for (let date of dates) {
+                // New Uptime Calculator
+                let calculator = new UptimeCalculator();
+                calculator.monitorID = monitor.monitor_id;
+                calculator.setMigrationMode(true);
+
+                // Get all the heartbeats for this monitor and date
+                let heartbeats = await R.getAll(`
+                    SELECT status, ping, time
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                    AND DATE(time) = ?
+                    ORDER BY time ASC
+                `, [ monitor.monitor_id, date.date ]);
+
+                if (heartbeats.length > 0) {
+                    msg = `[DON'T STOP] Migrating monitor data ${monitor.monitor_id} - ${date.date} [${progressPercent.toFixed(2)}%][${i}/${monitors.length}]`;
+                    log.info("db", msg);
+                    migrationServer?.update(msg);
+                }
+
+                for (let heartbeat of heartbeats) {
+                    await calculator.update(heartbeat.status, parseFloat(heartbeat.ping), dayjs(heartbeat.time));
+                }
+
+                progressPercent += (Math.round(part / dates.length * 100) / 100);
+
+                // Lazy to fix the floating point issue, it is acceptable since it is just a progress bar
+                if (progressPercent > 100) {
+                    progressPercent = 100;
+                }
+            }
+
+            i++;
+        }
+
+        msg = "Clearing non-important heartbeats";
+        log.info("db", msg);
+        migrationServer?.update(msg);
+
+        await Database.clearHeartbeatData(true);
+        await Settings.set("migrateAggregateTableState", "migrated");
+        await migrationServer?.stop();
+
+        if (monitors.length > 0) {
+            log.info("db", "Aggregate Table Migration Completed");
+        } else {
+            log.info("db", "No data to migrate");
+        }
+    }
+
+    /**
+     * Remove all non-important heartbeats from heartbeat table, keep last 24-hour or {KEEP_LAST_ROWS} rows for each monitor
+     * @param {boolean} detailedLog Log detailed information
+     * @returns {Promise<void>}
+     */
+    static async clearHeartbeatData(detailedLog = false) {
+        let monitors = await R.getAll("SELECT id FROM monitor");
+        const sqlHourOffset = Database.sqlHourOffset();
+
+        for (let monitor of monitors) {
+            if (detailedLog) {
+                log.info("db", "Deleting non-important heartbeats for monitor " + monitor.id);
+            }
+            await R.exec(`
+                DELETE FROM heartbeat
+                WHERE monitor_id = ?
+                AND important = 0
+                AND time < ${sqlHourOffset}
+                AND id NOT IN (
+                    SELECT id
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                    ORDER BY time DESC
+                    LIMIT ?
+                )
+            `, [
+                monitor.id,
+                -24,
+                monitor.id,
+                100,
+            ]);
+        }
+    }
+
+}
+
+module.exports = Database;
diff --git a/server/docker.js b/server/docker.js
new file mode 100644
index 0000000..ee6051d
--- /dev/null
+++ b/server/docker.js
@@ -0,0 +1,179 @@
+const axios = require("axios");
+const { R } = require("redbean-node");
+const https = require("https");
+const fs = require("fs");
+const path = require("path");
+const Database = require("./database");
+const { axiosAbortSignal } = require("./util-server");
+
+class DockerHost {
+
+    static CertificateFileNameCA = "ca.pem";
+    static CertificateFileNameCert = "cert.pem";
+    static CertificateFileNameKey = "key.pem";
+
+    /**
+     * Save a docker host
+     * @param {object} dockerHost Docker host to save
+     * @param {?number} dockerHostID ID of the docker host to update
+     * @param {number} userID ID of the user who adds the docker host
+     * @returns {Promise<Bean>} Updated docker host
+     */
+    static async save(dockerHost, dockerHostID, userID) {
+        let bean;
+
+        if (dockerHostID) {
+            bean = await R.findOne("docker_host", " id = ? AND user_id = ? ", [ dockerHostID, userID ]);
+
+            if (!bean) {
+                throw new Error("docker host not found");
+            }
+
+        } else {
+            bean = R.dispense("docker_host");
+        }
+
+        bean.user_id = userID;
+        bean.docker_daemon = dockerHost.dockerDaemon;
+        bean.docker_type = dockerHost.dockerType;
+        bean.name = dockerHost.name;
+
+        await R.store(bean);
+
+        return bean;
+    }
+
+    /**
+     * Delete a Docker host
+     * @param {number} dockerHostID ID of the Docker host to delete
+     * @param {number} userID ID of the user who created the Docker host
+     * @returns {Promise<void>}
+     */
+    static async delete(dockerHostID, userID) {
+        let bean = await R.findOne("docker_host", " id = ? AND user_id = ? ", [ dockerHostID, userID ]);
+
+        if (!bean) {
+            throw new Error("docker host not found");
+        }
+
+        // Delete removed proxy from monitors if exists
+        await R.exec("UPDATE monitor SET docker_host = null WHERE docker_host = ?", [ dockerHostID ]);
+
+        await R.trash(bean);
+    }
+
+    /**
+     * Fetches the amount of containers on the Docker host
+     * @param {object} dockerHost Docker host to check for
+     * @returns {Promise<number>} Total amount of containers on the host
+     */
+    static async testDockerHost(dockerHost) {
+        const options = {
+            url: "/containers/json?all=true",
+            timeout: 5000,
+            headers: {
+                "Accept": "*/*",
+            },
+            signal: axiosAbortSignal(6000),
+        };
+
+        if (dockerHost.dockerType === "socket") {
+            options.socketPath = dockerHost.dockerDaemon;
+        } else if (dockerHost.dockerType === "tcp") {
+            options.baseURL = DockerHost.patchDockerURL(dockerHost.dockerDaemon);
+            options.httpsAgent = new https.Agent(DockerHost.getHttpsAgentOptions(dockerHost.dockerType, options.baseURL));
+        }
+
+        try {
+            let res = await axios.request(options);
+
+            if (Array.isArray(res.data)) {
+
+                if (res.data.length > 1) {
+
+                    if ("ImageID" in res.data[0]) {
+                        return res.data.length;
+                    } else {
+                        throw new Error("Invalid Docker response, is it Docker really a daemon?");
+                    }
+
+                } else {
+                    return res.data.length;
+                }
+
+            } else {
+                throw new Error("Invalid Docker response, is it Docker really a daemon?");
+            }
+        } catch (e) {
+            if (e.code === "ECONNABORTED" || e.name === "CanceledError") {
+                throw new Error("Connection to Docker daemon timed out.");
+            } else {
+                throw e;
+            }
+        }
+    }
+
+    /**
+     * Since axios 0.27.X, it does not accept `tcp://` protocol.
+     * Change it to `http://` on the fly in order to fix it. (https://github.com/louislam/uptime-kuma/issues/2165)
+     * @param {any} url URL to fix
+     * @returns {any} URL with tcp:// replaced by http://
+     */
+    static patchDockerURL(url) {
+        if (typeof url === "string") {
+            // Replace the first occurrence only with g
+            return url.replace(/tcp:\/\//g, "http://");
+        }
+        return url;
+    }
+
+    /**
+     * Returns HTTPS agent options with client side TLS parameters if certificate files
+     * for the given host are available under a predefined directory path.
+     *
+     * The base path where certificates are looked for can be set with the
+     * 'DOCKER_TLS_DIR_PATH' environmental variable or defaults to 'data/docker-tls/'.
+     *
+     * If a directory in this path exists with a name matching the FQDN of the docker host
+     * (e.g. the FQDN of 'https://example.com:2376' is 'example.com' so the directory
+     * 'data/docker-tls/example.com/' would be searched for certificate files),
+     * then 'ca.pem', 'key.pem' and 'cert.pem' files are included in the agent options.
+     * File names can also be overridden via 'DOCKER_TLS_FILE_NAME_(CA|KEY|CERT)'.
+     * @param {string} dockerType i.e. "tcp" or "socket"
+     * @param {string} url The docker host URL rewritten to https://
+     * @returns {object} HTTP agent options
+     */
+    static getHttpsAgentOptions(dockerType, url) {
+        let baseOptions = {
+            maxCachedSessions: 0,
+            rejectUnauthorized: true
+        };
+        let certOptions = {};
+
+        let dirName = (new URL(url)).hostname;
+
+        let caPath = path.join(Database.dockerTLSDir, dirName, DockerHost.CertificateFileNameCA);
+        let certPath = path.join(Database.dockerTLSDir, dirName, DockerHost.CertificateFileNameCert);
+        let keyPath = path.join(Database.dockerTLSDir, dirName, DockerHost.CertificateFileNameKey);
+
+        if (dockerType === "tcp" && fs.existsSync(caPath) && fs.existsSync(certPath) && fs.existsSync(keyPath)) {
+            let ca = fs.readFileSync(caPath);
+            let key = fs.readFileSync(keyPath);
+            let cert = fs.readFileSync(certPath);
+            certOptions = {
+                ca,
+                key,
+                cert
+            };
+        }
+
+        return {
+            ...baseOptions,
+            ...certOptions
+        };
+    }
+}
+
+module.exports = {
+    DockerHost,
+};
diff --git a/server/embedded-mariadb.js b/server/embedded-mariadb.js
new file mode 100644
index 0000000..8aa7134
--- /dev/null
+++ b/server/embedded-mariadb.js
@@ -0,0 +1,176 @@
+const { log } = require("../src/util");
+const childProcess = require("child_process");
+const fs = require("fs");
+const mysql = require("mysql2");
+
+/**
+ * It is only used inside the docker container
+ */
+class EmbeddedMariaDB {
+
+    static instance = null;
+
+    exec = "mariadbd";
+
+    mariadbDataDir = "/app/data/mariadb";
+
+    runDir = "/app/data/run/mariadb";
+
+    socketPath = this.runDir + "/mysqld.sock";
+
+    /**
+     * @type {ChildProcessWithoutNullStreams}
+     * @private
+     */
+    childProcess = null;
+    running = false;
+
+    started = false;
+
+    /**
+     * @returns {EmbeddedMariaDB} The singleton instance
+     */
+    static getInstance() {
+        if (!EmbeddedMariaDB.instance) {
+            EmbeddedMariaDB.instance = new EmbeddedMariaDB();
+        }
+        return EmbeddedMariaDB.instance;
+    }
+
+    /**
+     * @returns {boolean} If the singleton instance is created
+     */
+    static hasInstance() {
+        return !!EmbeddedMariaDB.instance;
+    }
+
+    /**
+     * Start the embedded MariaDB
+     * @returns {Promise<void>|void} A promise that resolves when the MariaDB is started or void if it is already started
+     */
+    start() {
+        if (this.childProcess) {
+            log.info("mariadb", "Already started");
+            return;
+        }
+
+        this.initDB();
+
+        this.running = true;
+        log.info("mariadb", "Starting Embedded MariaDB");
+        this.childProcess = childProcess.spawn(this.exec, [
+            "--user=node",
+            "--datadir=" + this.mariadbDataDir,
+            `--socket=${this.socketPath}`,
+            `--pid-file=${this.runDir}/mysqld.pid`,
+        ]);
+
+        this.childProcess.on("close", (code) => {
+            this.running = false;
+            this.childProcess = null;
+            this.started = false;
+            log.info("mariadb", "Stopped Embedded MariaDB: " + code);
+
+            if (code !== 0) {
+                log.info("mariadb", "Try to restart Embedded MariaDB as it is not stopped by user");
+                this.start();
+            }
+        });
+
+        this.childProcess.on("error", (err) => {
+            if (err.code === "ENOENT") {
+                log.error("mariadb", `Embedded MariaDB: ${this.exec} is not found`);
+            } else {
+                log.error("mariadb", err);
+            }
+        });
+
+        let handler = (data) => {
+            log.debug("mariadb", data.toString("utf-8"));
+            if (data.toString("utf-8").includes("ready for connections")) {
+                this.initDBAfterStarted();
+            }
+        };
+
+        this.childProcess.stdout.on("data", handler);
+        this.childProcess.stderr.on("data", handler);
+
+        return new Promise((resolve) => {
+            let interval = setInterval(() => {
+                if (this.started) {
+                    clearInterval(interval);
+                    resolve();
+                } else {
+                    log.info("mariadb", "Waiting for Embedded MariaDB to start...");
+                }
+            }, 1000);
+        });
+    }
+
+    /**
+     * Stop all the child processes
+     * @returns {void}
+     */
+    stop() {
+        if (this.childProcess) {
+            this.childProcess.kill("SIGINT");
+            this.childProcess = null;
+        }
+    }
+
+    /**
+     * Install MariaDB if it is not installed and make sure the `runDir` directory exists
+     * @returns {void}
+     */
+    initDB() {
+        if (!fs.existsSync(this.mariadbDataDir)) {
+            log.info("mariadb", `Embedded MariaDB: ${this.mariadbDataDir} is not found, create one now.`);
+            fs.mkdirSync(this.mariadbDataDir, {
+                recursive: true,
+            });
+
+            let result = childProcess.spawnSync("mysql_install_db", [
+                "--user=node",
+                "--ldata=" + this.mariadbDataDir,
+            ]);
+
+            if (result.status !== 0) {
+                let error = result.stderr.toString("utf-8");
+                log.error("mariadb", error);
+                return;
+            } else {
+                log.info("mariadb", "Embedded MariaDB: mysql_install_db done:" + result.stdout.toString("utf-8"));
+            }
+        }
+
+        if (!fs.existsSync(this.runDir)) {
+            log.info("mariadb", `Embedded MariaDB: ${this.runDir} is not found, create one now.`);
+            fs.mkdirSync(this.runDir, {
+                recursive: true,
+            });
+        }
+
+    }
+
+    /**
+     * Initialise the "kuma" database in mariadb if it does not exist
+     * @returns {Promise<void>}
+     */
+    async initDBAfterStarted() {
+        const connection = mysql.createConnection({
+            socketPath: this.socketPath,
+            user: "node",
+        });
+
+        let result = await connection.execute("CREATE DATABASE IF NOT EXISTS `kuma`");
+        log.debug("mariadb", "CREATE DATABASE: " + JSON.stringify(result));
+
+        log.info("mariadb", "Embedded MariaDB is ready for connections");
+        this.started = true;
+    }
+
+}
+
+module.exports = {
+    EmbeddedMariaDB,
+};
diff --git a/server/google-analytics.js b/server/google-analytics.js
new file mode 100644
index 0000000..57ae7b7
--- /dev/null
+++ b/server/google-analytics.js
@@ -0,0 +1,28 @@
+const jsesc = require("jsesc");
+const { escape } = require("html-escaper");
+
+/**
+ * Returns a string that represents the javascript that is required to insert the Google Analytics scripts
+ * into a webpage.
+ * @param {string} tagId Google UA/G/AW/DC Property ID to use with the Google Analytics script.
+ * @returns {string} HTML script tags to inject into page
+ */
+function getGoogleAnalyticsScript(tagId) {
+    let escapedTagIdJS = jsesc(tagId, { isScriptContext: true });
+
+    if (escapedTagIdJS) {
+        escapedTagIdJS = escapedTagIdJS.trim();
+    }
+
+    // Escape the tag ID for use in an HTML attribute.
+    let escapedTagIdHTMLAttribute = escape(tagId);
+
+    return `
+        <script async src="https://www.googletagmanager.com/gtag/js?id=${escapedTagIdHTMLAttribute}"></script>
+        <script>window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date());gtag('config', '${escapedTagIdJS}'); </script>
+    `;
+}
+
+module.exports = {
+    getGoogleAnalyticsScript,
+};
diff --git a/server/image-data-uri.js b/server/image-data-uri.js
new file mode 100644
index 0000000..77dd233
--- /dev/null
+++ b/server/image-data-uri.js
@@ -0,0 +1,79 @@
+/*
+    From https://github.com/DiegoZoracKy/image-data-uri/blob/master/lib/image-data-uri.js
+    Modified with 0 dependencies
+ */
+let fs = require("fs");
+const { log } = require("../src/util");
+
+let ImageDataURI = (() => {
+
+    /**
+     * Decode the data:image/ URI
+     * @param {string} dataURI data:image/ URI to decode
+     * @returns {?object} An object with properties "imageType" and "dataBase64".
+     * The former is the image type, e.g., "png", and the latter is a base64
+     * encoded string of the image's binary data. If it fails to parse, returns
+     * null instead of an object.
+     */
+    function decode(dataURI) {
+        if (!/data:image\//.test(dataURI)) {
+            log.error("image-data-uri", "It seems that it is not an Image Data URI. Couldn't match \"data:image/\"");
+            return null;
+        }
+
+        let regExMatches = dataURI.match("data:(image/.*);base64,(.*)");
+        return {
+            imageType: regExMatches[1],
+            dataBase64: regExMatches[2],
+            dataBuffer: new Buffer(regExMatches[2], "base64")
+        };
+    }
+
+    /**
+     * Endcode an image into data:image/ URI
+     * @param {(Buffer|string)} data Data to encode
+     * @param {string} mediaType Media type of data
+     * @returns {(string|null)} A string representing the base64-encoded
+     * version of the given Buffer object or null if an error occurred.
+     */
+    function encode(data, mediaType) {
+        if (!data || !mediaType) {
+            log.error("image-data-uri", "Missing some of the required params: data, mediaType");
+            return null;
+        }
+
+        mediaType = (/\//.test(mediaType)) ? mediaType : "image/" + mediaType;
+        let dataBase64 = (Buffer.isBuffer(data)) ? data.toString("base64") : new Buffer(data).toString("base64");
+        let dataImgBase64 = "data:" + mediaType + ";base64," + dataBase64;
+
+        return dataImgBase64;
+    }
+
+    /**
+     * Write data URI to file
+     * @param {string} dataURI data:image/ URI
+     * @param {string} filePath Path to write file to
+     * @returns {Promise<string|void>} Write file error
+     */
+    function outputFile(dataURI, filePath) {
+        filePath = filePath || "./";
+        return new Promise((resolve, reject) => {
+            let imageDecoded = decode(dataURI);
+
+            fs.writeFile(filePath, imageDecoded.dataBuffer, err => {
+                if (err) {
+                    return reject("ImageDataURI :: Error :: " + JSON.stringify(err, null, 4));
+                }
+                resolve(filePath);
+            });
+        });
+    }
+
+    return {
+        decode: decode,
+        encode: encode,
+        outputFile: outputFile,
+    };
+})();
+
+module.exports = ImageDataURI;
diff --git a/server/jobs.js b/server/jobs.js
new file mode 100644
index 0000000..0838731
--- /dev/null
+++ b/server/jobs.js
@@ -0,0 +1,58 @@
+const { UptimeKumaServer } = require("./uptime-kuma-server");
+const { clearOldData } = require("./jobs/clear-old-data");
+const { incrementalVacuum } = require("./jobs/incremental-vacuum");
+const Cron = require("croner");
+
+const jobs = [
+    {
+        name: "clear-old-data",
+        interval: "14 03 * * *",
+        jobFunc: clearOldData,
+        croner: null,
+    },
+    {
+        name: "incremental-vacuum",
+        interval: "*/5 * * * *",
+        jobFunc: incrementalVacuum,
+        croner: null,
+    }
+];
+
+/**
+ * Initialize background jobs
+ * @returns {Promise<void>}
+ */
+const initBackgroundJobs = async function () {
+    const timezone = await UptimeKumaServer.getInstance().getTimezone();
+
+    for (const job of jobs) {
+        const cornerJob = new Cron(
+            job.interval,
+            {
+                name: job.name,
+                timezone,
+            },
+            job.jobFunc,
+        );
+        job.croner = cornerJob;
+    }
+
+};
+
+/**
+ * Stop all background jobs if running
+ * @returns {void}
+ */
+const stopBackgroundJobs = function () {
+    for (const job of jobs) {
+        if (job.croner) {
+            job.croner.stop();
+            job.croner = null;
+        }
+    }
+};
+
+module.exports = {
+    initBackgroundJobs,
+    stopBackgroundJobs
+};
diff --git a/server/jobs/clear-old-data.js b/server/jobs/clear-old-data.js
new file mode 100644
index 0000000..cfd65a8
--- /dev/null
+++ b/server/jobs/clear-old-data.js
@@ -0,0 +1,65 @@
+const { R } = require("redbean-node");
+const { log } = require("../../src/util");
+const Database = require("../database");
+const { Settings } = require("../settings");
+const dayjs = require("dayjs");
+
+const DEFAULT_KEEP_PERIOD = 365;
+
+/**
+ * Clears old data from the heartbeat table and the stat_daily of the database.
+ * @returns {Promise<void>} A promise that resolves when the data has been cleared.
+ */
+const clearOldData = async () => {
+    await Database.clearHeartbeatData();
+    let period = await Settings.get("keepDataPeriodDays");
+
+    // Set Default Period
+    if (period == null) {
+        await Settings.set("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
+        period = DEFAULT_KEEP_PERIOD;
+    }
+
+    // Try parse setting
+    let parsedPeriod;
+    try {
+        parsedPeriod = parseInt(period);
+    } catch (_) {
+        log.warn("clearOldData", "Failed to parse setting, resetting to default..");
+        await Settings.set("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
+        parsedPeriod = DEFAULT_KEEP_PERIOD;
+    }
+
+    if (parsedPeriod < 1) {
+        log.info("clearOldData", `Data deletion has been disabled as period is less than 1. Period is ${parsedPeriod} days.`);
+    } else {
+        log.debug("clearOldData", `Clearing Data older than ${parsedPeriod} days...`);
+        const sqlHourOffset = Database.sqlHourOffset();
+
+        try {
+            // Heartbeat
+            await R.exec("DELETE FROM heartbeat WHERE time < " + sqlHourOffset, [
+                parsedPeriod * -24,
+            ]);
+
+            let timestamp = dayjs().subtract(parsedPeriod, "day").utc().startOf("day").unix();
+
+            // stat_daily
+            await R.exec("DELETE FROM stat_daily WHERE timestamp < ? ", [
+                timestamp,
+            ]);
+
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA optimize;");
+            }
+        } catch (e) {
+            log.error("clearOldData", `Failed to clear old data: ${e.message}`);
+        }
+    }
+
+    log.debug("clearOldData", "Data cleared.");
+};
+
+module.exports = {
+    clearOldData,
+};
diff --git a/server/jobs/incremental-vacuum.js b/server/jobs/incremental-vacuum.js
new file mode 100644
index 0000000..f0fa78a
--- /dev/null
+++ b/server/jobs/incremental-vacuum.js
@@ -0,0 +1,27 @@
+const { R } = require("redbean-node");
+const { log } = require("../../src/util");
+const Database = require("../database");
+
+/**
+ * Run incremental_vacuum and checkpoint the WAL.
+ * @returns {Promise<void>} A promise that resolves when the process is finished.
+ */
+
+const incrementalVacuum = async () => {
+    try {
+        if (Database.dbConfig.type !== "sqlite") {
+            log.debug("incrementalVacuum", "Skipping incremental_vacuum, not using SQLite.");
+            return;
+        }
+
+        log.debug("incrementalVacuum", "Running incremental_vacuum and wal_checkpoint(PASSIVE)...");
+        await R.exec("PRAGMA incremental_vacuum(200)");
+        await R.exec("PRAGMA wal_checkpoint(PASSIVE)");
+    } catch (e) {
+        log.error("incrementalVacuum", `Failed: ${e.message}`);
+    }
+};
+
+module.exports = {
+    incrementalVacuum,
+};
diff --git a/server/model/api_key.js b/server/model/api_key.js
new file mode 100644
index 0000000..96de984
--- /dev/null
+++ b/server/model/api_key.js
@@ -0,0 +1,76 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+const { R } = require("redbean-node");
+const dayjs = require("dayjs");
+
+class APIKey extends BeanModel {
+    /**
+     * Get the current status of this API key
+     * @returns {string} active, inactive or expired
+     */
+    getStatus() {
+        let current = dayjs();
+        let expiry = dayjs(this.expires);
+        if (expiry.diff(current) < 0) {
+            return "expired";
+        }
+
+        return this.active ? "active" : "inactive";
+    }
+
+    /**
+     * Returns an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON() {
+        return {
+            id: this.id,
+            key: this.key,
+            name: this.name,
+            userID: this.user_id,
+            createdDate: this.created_date,
+            active: this.active,
+            expires: this.expires,
+            status: this.getStatus(),
+        };
+    }
+
+    /**
+     * Returns an object that ready to parse to JSON with sensitive fields
+     * removed
+     * @returns {object} Object ready to parse
+     */
+    toPublicJSON() {
+        return {
+            id: this.id,
+            name: this.name,
+            userID: this.user_id,
+            createdDate: this.created_date,
+            active: this.active,
+            expires: this.expires,
+            status: this.getStatus(),
+        };
+    }
+
+    /**
+     * Create a new API Key and store it in the database
+     * @param {object} key Object sent by client
+     * @param {int} userID ID of socket user
+     * @returns {Promise<bean>} API key
+     */
+    static async save(key, userID) {
+        let bean;
+        bean = R.dispense("api_key");
+
+        bean.key = key.key;
+        bean.name = key.name;
+        bean.user_id = userID;
+        bean.active = key.active;
+        bean.expires = key.expires;
+
+        await R.store(bean);
+
+        return bean;
+    }
+}
+
+module.exports = APIKey;
diff --git a/server/model/docker_host.js b/server/model/docker_host.js
new file mode 100644
index 0000000..ceb8f4a
--- /dev/null
+++ b/server/model/docker_host.js
@@ -0,0 +1,19 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+
+class DockerHost extends BeanModel {
+    /**
+     * Returns an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON() {
+        return {
+            id: this.id,
+            userID: this.user_id,
+            dockerDaemon: this.docker_daemon,
+            dockerType: this.docker_type,
+            name: this.name,
+        };
+    }
+}
+
+module.exports = DockerHost;
diff --git a/server/model/group.js b/server/model/group.js
new file mode 100644
index 0000000..bd2c301
--- /dev/null
+++ b/server/model/group.js
@@ -0,0 +1,46 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+const { R } = require("redbean-node");
+
+class Group extends BeanModel {
+
+    /**
+     * Return an object that ready to parse to JSON for public Only show
+     * necessary data to public
+     * @param {boolean} showTags Should the JSON include monitor tags
+     * @param {boolean} certExpiry Should JSON include info about
+     * certificate expiry?
+     * @returns {Promise<object>} Object ready to parse
+     */
+    async toPublicJSON(showTags = false, certExpiry = false) {
+        let monitorBeanList = await this.getMonitorList();
+        let monitorList = [];
+
+        for (let bean of monitorBeanList) {
+            monitorList.push(await bean.toPublicJSON(showTags, certExpiry));
+        }
+
+        return {
+            id: this.id,
+            name: this.name,
+            weight: this.weight,
+            monitorList,
+        };
+    }
+
+    /**
+     * Get all monitors
+     * @returns {Promise<Bean[]>} List of monitors
+     */
+    async getMonitorList() {
+        return R.convertToBeans("monitor", await R.getAll(`
+            SELECT monitor.*, monitor_group.send_url FROM monitor, monitor_group
+            WHERE monitor.id = monitor_group.monitor_id
+            AND group_id = ?
+            ORDER BY monitor_group.weight
+        `, [
+            this.id,
+        ]));
+    }
+}
+
+module.exports = Group;
diff --git a/server/model/heartbeat.js b/server/model/heartbeat.js
new file mode 100644
index 0000000..9e972a3
--- /dev/null
+++ b/server/model/heartbeat.js
@@ -0,0 +1,45 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+
+/**
+ * status:
+ *      0 = DOWN
+ *      1 = UP
+ *      2 = PENDING
+ *      3 = MAINTENANCE
+ */
+class Heartbeat extends BeanModel {
+
+    /**
+     * Return an object that ready to parse to JSON for public
+     * Only show necessary data to public
+     * @returns {object} Object ready to parse
+     */
+    toPublicJSON() {
+        return {
+            status: this.status,
+            time: this.time,
+            msg: "",        // Hide for public
+            ping: this.ping,
+        };
+    }
+
+    /**
+     * Return an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON() {
+        return {
+            monitorID: this._monitorId,
+            status: this._status,
+            time: this._time,
+            msg: this._msg,
+            ping: this._ping,
+            important: this._important,
+            duration: this._duration,
+            retries: this._retries,
+        };
+    }
+
+}
+
+module.exports = Heartbeat;
diff --git a/server/model/incident.js b/server/model/incident.js
new file mode 100644
index 0000000..c47dabb
--- /dev/null
+++ b/server/model/incident.js
@@ -0,0 +1,23 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+
+class Incident extends BeanModel {
+
+    /**
+     * Return an object that ready to parse to JSON for public
+     * Only show necessary data to public
+     * @returns {object} Object ready to parse
+     */
+    toPublicJSON() {
+        return {
+            id: this.id,
+            style: this.style,
+            title: this.title,
+            content: this.content,
+            pin: this.pin,
+            createdDate: this.createdDate,
+            lastUpdatedDate: this.lastUpdatedDate,
+        };
+    }
+}
+
+module.exports = Incident;
diff --git a/server/model/maintenance.js b/server/model/maintenance.js
new file mode 100644
index 0000000..7111a18
--- /dev/null
+++ b/server/model/maintenance.js
@@ -0,0 +1,457 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+const { parseTimeObject, parseTimeFromTimeObject, log } = require("../../src/util");
+const { R } = require("redbean-node");
+const dayjs = require("dayjs");
+const Cron = require("croner");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const apicache = require("../modules/apicache");
+
+class Maintenance extends BeanModel {
+
+    /**
+     * Return an object that ready to parse to JSON for public
+     * Only show necessary data to public
+     * @returns {Promise<object>} Object ready to parse
+     */
+    async toPublicJSON() {
+
+        let dateRange = [];
+        if (this.start_date) {
+            dateRange.push(this.start_date);
+        } else {
+            dateRange.push(null);
+        }
+
+        if (this.end_date) {
+            dateRange.push(this.end_date);
+        }
+
+        let timeRange = [];
+        let startTime = parseTimeObject(this.start_time);
+        timeRange.push(startTime);
+        let endTime = parseTimeObject(this.end_time);
+        timeRange.push(endTime);
+
+        let obj = {
+            id: this.id,
+            title: this.title,
+            description: this.description,
+            strategy: this.strategy,
+            intervalDay: this.interval_day,
+            active: !!this.active,
+            dateRange: dateRange,
+            timeRange: timeRange,
+            weekdays: (this.weekdays) ? JSON.parse(this.weekdays) : [],
+            daysOfMonth: (this.days_of_month) ? JSON.parse(this.days_of_month) : [],
+            timeslotList: [],
+            cron: this.cron,
+            duration: this.duration,
+            durationMinutes: parseInt(this.duration / 60),
+            timezone: await this.getTimezone(),         // Only valid timezone
+            timezoneOption: this.timezone,               // Mainly for dropdown menu, because there is a option "SAME_AS_SERVER"
+            timezoneOffset: await this.getTimezoneOffset(),
+            status: await this.getStatus(),
+        };
+
+        if (this.strategy === "manual") {
+            // Do nothing, no timeslots
+        } else if (this.strategy === "single") {
+            obj.timeslotList.push({
+                startDate: this.start_date,
+                endDate: this.end_date,
+            });
+        } else {
+            // Should be cron or recurring here
+            if (this.beanMeta.job) {
+                let runningTimeslot = this.getRunningTimeslot();
+
+                if (runningTimeslot) {
+                    obj.timeslotList.push(runningTimeslot);
+                }
+
+                let nextRunDate = this.beanMeta.job.nextRun();
+                if (nextRunDate) {
+                    let startDateDayjs = dayjs(nextRunDate);
+
+                    let startDate = startDateDayjs.toISOString();
+                    let endDate = startDateDayjs.add(this.duration, "second").toISOString();
+
+                    obj.timeslotList.push({
+                        startDate,
+                        endDate,
+                    });
+                }
+            }
+        }
+
+        if (!Array.isArray(obj.weekdays)) {
+            obj.weekdays = [];
+        }
+
+        if (!Array.isArray(obj.daysOfMonth)) {
+            obj.daysOfMonth = [];
+        }
+
+        return obj;
+    }
+
+    /**
+     * Return an object that ready to parse to JSON
+     * @param {string} timezone If not specified, the timeRange will be in UTC
+     * @returns {Promise<object>} Object ready to parse
+     */
+    async toJSON(timezone = null) {
+        return this.toPublicJSON(timezone);
+    }
+
+    /**
+     * Get a list of weekdays that the maintenance is active for
+     * Monday=1, Tuesday=2 etc.
+     * @returns {number[]} Array of active weekdays
+     */
+    getDayOfWeekList() {
+        log.debug("timeslot", "List: " + this.weekdays);
+        return JSON.parse(this.weekdays).sort(function (a, b) {
+            return a - b;
+        });
+    }
+
+    /**
+     * Get a list of days in month that maintenance is active for
+     * @returns {number[]|string[]} Array of active days in month
+     */
+    getDayOfMonthList() {
+        return JSON.parse(this.days_of_month).sort(function (a, b) {
+            return a - b;
+        });
+    }
+
+    /**
+     * Get the duration of maintenance in seconds
+     * @returns {number} Duration of maintenance
+     */
+    calcDuration() {
+        let duration = dayjs.utc(this.end_time, "HH:mm").diff(dayjs.utc(this.start_time, "HH:mm"), "second");
+        // Add 24hours if it is across day
+        if (duration < 0) {
+            duration += 24 * 3600;
+        }
+        return duration;
+    }
+
+    /**
+     * Convert data from socket to bean
+     * @param {Bean} bean Bean to fill in
+     * @param {object} obj Data to fill bean with
+     * @returns {Promise<Bean>} Filled bean
+     */
+    static async jsonToBean(bean, obj) {
+        if (obj.id) {
+            bean.id = obj.id;
+        }
+
+        bean.title = obj.title;
+        bean.description = obj.description;
+        bean.strategy = obj.strategy;
+        bean.interval_day = obj.intervalDay;
+        bean.timezone = obj.timezoneOption;
+        bean.active = obj.active;
+
+        if (obj.dateRange[0]) {
+            bean.start_date = obj.dateRange[0];
+        } else {
+            bean.start_date = null;
+        }
+
+        if (obj.dateRange[1]) {
+            bean.end_date = obj.dateRange[1];
+        } else {
+            bean.end_date = null;
+        }
+
+        if (bean.strategy === "cron") {
+            bean.duration = obj.durationMinutes * 60;
+            bean.cron = obj.cron;
+            this.validateCron(bean.cron);
+        }
+
+        if (bean.strategy.startsWith("recurring-")) {
+            bean.start_time = parseTimeFromTimeObject(obj.timeRange[0]);
+            bean.end_time = parseTimeFromTimeObject(obj.timeRange[1]);
+            bean.weekdays = JSON.stringify(obj.weekdays);
+            bean.days_of_month = JSON.stringify(obj.daysOfMonth);
+            await bean.generateCron();
+            this.validateCron(bean.cron);
+        }
+        return bean;
+    }
+
+    /**
+     * Throw error if cron is invalid
+     * @param {string|Date} cron Pattern or date
+     * @returns {void}
+     */
+    static validateCron(cron) {
+        let job = new Cron(cron, () => {});
+        job.stop();
+    }
+
+    /**
+     * Run the cron
+     * @param {boolean} throwError Should an error be thrown on failure
+     * @returns {Promise<void>}
+     */
+    async run(throwError = false) {
+        if (this.beanMeta.job) {
+            log.debug("maintenance", "Maintenance is already running, stop it first. id: " + this.id);
+            this.stop();
+        }
+
+        log.debug("maintenance", "Run maintenance id: " + this.id);
+
+        // 1.21.2 migration
+        if (!this.cron) {
+            await this.generateCron();
+            if (!this.timezone) {
+                this.timezone = "UTC";
+            }
+            if (this.cron) {
+                await R.store(this);
+            }
+        }
+
+        if (this.strategy === "manual") {
+            // Do nothing, because it is controlled by the user
+        } else if (this.strategy === "single") {
+            this.beanMeta.job = new Cron(this.start_date, { timezone: await this.getTimezone() }, () => {
+                log.info("maintenance", "Maintenance id: " + this.id + " is under maintenance now");
+                UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+                apicache.clear();
+            });
+        } else if (this.cron != null) {
+            // Here should be cron or recurring
+            try {
+                this.beanMeta.status = "scheduled";
+
+                let startEvent = (customDuration = 0) => {
+                    log.info("maintenance", "Maintenance id: " + this.id + " is under maintenance now");
+
+                    this.beanMeta.status = "under-maintenance";
+                    clearTimeout(this.beanMeta.durationTimeout);
+
+                    let duration = this.inferDuration(customDuration);
+
+                    UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+
+                    this.beanMeta.durationTimeout = setTimeout(() => {
+                        // End of maintenance for this timeslot
+                        this.beanMeta.status = "scheduled";
+                        UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+                    }, duration);
+                };
+
+                // Create Cron
+                if (this.strategy === "recurring-interval") {
+                    // For recurring-interval, Croner needs to have interval and startAt
+                    const startDate = dayjs(this.startDate);
+                    const [ hour, minute ] = this.startTime.split(":");
+                    const startDateTime = startDate.hour(hour).minute(minute);
+                    this.beanMeta.job = new Cron(this.cron, {
+                        timezone: await this.getTimezone(),
+                        interval: this.interval_day * 24 * 60 * 60,
+                        startAt: startDateTime.toISOString(),
+                    }, startEvent);
+                } else {
+                    this.beanMeta.job = new Cron(this.cron, {
+                        timezone: await this.getTimezone(),
+                    }, startEvent);
+                }
+
+                // Continue if the maintenance is still in the window
+                let runningTimeslot = this.getRunningTimeslot();
+                let current = dayjs();
+
+                if (runningTimeslot) {
+                    let duration = dayjs(runningTimeslot.endDate).diff(current, "second") * 1000;
+                    log.debug("maintenance", "Maintenance id: " + this.id + " Remaining duration: " + duration + "ms");
+                    startEvent(duration);
+                }
+
+            } catch (e) {
+                log.error("maintenance", "Error in maintenance id: " + this.id);
+                log.error("maintenance", "Cron: " + this.cron);
+                log.error("maintenance", e);
+
+                if (throwError) {
+                    throw e;
+                }
+            }
+
+        } else {
+            log.error("maintenance", "Maintenance id: " + this.id + " has no cron");
+        }
+    }
+
+    /**
+     * Get timeslots where maintenance is running
+     * @returns {object|null} Maintenance time slot
+     */
+    getRunningTimeslot() {
+        let start = dayjs(this.beanMeta.job.nextRun(dayjs().add(-this.duration, "second").toDate()));
+        let end = start.add(this.duration, "second");
+        let current = dayjs();
+
+        if (current.isAfter(start) && current.isBefore(end)) {
+            return {
+                startDate: start.toISOString(),
+                endDate: end.toISOString(),
+            };
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Calculate the maintenance duration
+     * @param {number} customDuration - The custom duration in milliseconds.
+     * @returns {number} The inferred duration in milliseconds.
+     */
+    inferDuration(customDuration) {
+        // Check if duration is still in the window. If not, use the duration from the current time to the end of the window
+        if (customDuration > 0) {
+            return customDuration;
+        } else if (this.end_date) {
+            let d = dayjs(this.end_date).diff(dayjs(), "second");
+            if (d < this.duration) {
+                return d * 1000;
+            }
+        }
+        return this.duration * 1000;
+    }
+
+    /**
+     * Stop the maintenance
+     * @returns {void}
+     */
+    stop() {
+        if (this.beanMeta.job) {
+            this.beanMeta.job.stop();
+            delete this.beanMeta.job;
+        }
+    }
+
+    /**
+     * Is this maintenance currently active
+     * @returns {Promise<boolean>} The maintenance is active?
+     */
+    async isUnderMaintenance() {
+        return (await this.getStatus()) === "under-maintenance";
+    }
+
+    /**
+     * Get the timezone of the maintenance
+     * @returns {Promise<string>} timezone
+     */
+    async getTimezone() {
+        if (!this.timezone || this.timezone === "SAME_AS_SERVER") {
+            return await UptimeKumaServer.getInstance().getTimezone();
+        }
+        return this.timezone;
+    }
+
+    /**
+     * Get offset for timezone
+     * @returns {Promise<string>} offset
+     */
+    async getTimezoneOffset() {
+        return dayjs.tz(dayjs(), await this.getTimezone()).format("Z");
+    }
+
+    /**
+     * Get the current status of the maintenance
+     * @returns {Promise<string>} Current status
+     */
+    async getStatus() {
+        if (!this.active) {
+            return "inactive";
+        }
+
+        if (this.strategy === "manual") {
+            return "under-maintenance";
+        }
+
+        // Check if the maintenance is started
+        if (this.start_date && dayjs().isBefore(dayjs.tz(this.start_date, await this.getTimezone()))) {
+            return "scheduled";
+        }
+
+        // Check if the maintenance is ended
+        if (this.end_date && dayjs().isAfter(dayjs.tz(this.end_date, await this.getTimezone()))) {
+            return "ended";
+        }
+
+        if (this.strategy === "single") {
+            return "under-maintenance";
+        }
+
+        if (!this.beanMeta.status) {
+            return "unknown";
+        }
+
+        return this.beanMeta.status;
+    }
+
+    /**
+     * Generate Cron for recurring maintenance
+     * @returns {Promise<void>}
+     */
+    async generateCron() {
+        log.info("maintenance", "Generate cron for maintenance id: " + this.id);
+
+        if (this.strategy === "cron") {
+            // Do nothing for cron
+        } else if (!this.strategy.startsWith("recurring-")) {
+            this.cron = "";
+        } else if (this.strategy === "recurring-interval") {
+            // For intervals, the pattern is calculated in the run function as the interval-option is set
+            this.cron = "* * * * *";
+            this.duration = this.calcDuration();
+            log.debug("maintenance", "Cron: " + this.cron);
+            log.debug("maintenance", "Duration: " + this.duration);
+        } else if (this.strategy === "recurring-weekday") {
+            let list = this.getDayOfWeekList();
+            let array = this.start_time.split(":");
+            let hour = parseInt(array[0]);
+            let minute = parseInt(array[1]);
+            this.cron = minute + " " + hour + " * * " + list.join(",");
+            this.duration = this.calcDuration();
+        } else if (this.strategy === "recurring-day-of-month") {
+            let list = this.getDayOfMonthList();
+            let array = this.start_time.split(":");
+            let hour = parseInt(array[0]);
+            let minute = parseInt(array[1]);
+
+            let dayList = [];
+
+            for (let day of list) {
+                if (typeof day === "string" && day.startsWith("lastDay")) {
+                    if (day === "lastDay1") {
+                        dayList.push("L");
+                    }
+                    // Unfortunately, lastDay2-4 is not supported by cron
+                } else {
+                    dayList.push(day);
+                }
+            }
+
+            // Remove duplicate
+            dayList = [ ...new Set(dayList) ];
+
+            this.cron = minute + " " + hour + " " + dayList.join(",") + " * *";
+            this.duration = this.calcDuration();
+        }
+
+    }
+}
+
+module.exports = Maintenance;
diff --git a/server/model/monitor.js b/server/model/monitor.js
new file mode 100644
index 0000000..9a30a66
--- /dev/null
+++ b/server/model/monitor.js
@@ -0,0 +1,1740 @@
+const dayjs = require("dayjs");
+const axios = require("axios");
+const { Prometheus } = require("../prometheus");
+const { log, UP, DOWN, PENDING, MAINTENANCE, flipStatus, MAX_INTERVAL_SECOND, MIN_INTERVAL_SECOND,
+    SQL_DATETIME_FORMAT, evaluateJsonQuery
+} = require("../../src/util");
+const { tcping, ping, checkCertificate, checkStatusCode, getTotalClientInRoom, setting, mssqlQuery, postgresQuery, mysqlQuery, setSetting, httpNtlm, radius, grpcQuery,
+    redisPingAsync, kafkaProducerAsync, getOidcTokenClientCredentials, rootCertificatesFingerprints, axiosAbortSignal
+} = require("../util-server");
+const { R } = require("redbean-node");
+const { BeanModel } = require("redbean-node/dist/bean-model");
+const { Notification } = require("../notification");
+const { Proxy } = require("../proxy");
+const { demoMode } = require("../config");
+const version = require("../../package.json").version;
+const apicache = require("../modules/apicache");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const { DockerHost } = require("../docker");
+const Gamedig = require("gamedig");
+const jwt = require("jsonwebtoken");
+const crypto = require("crypto");
+const { UptimeCalculator } = require("../uptime-calculator");
+const { CookieJar } = require("tough-cookie");
+const { HttpsCookieAgent } = require("http-cookie-agent/http");
+const https = require("https");
+const http = require("http");
+
+const rootCertificates = rootCertificatesFingerprints();
+
+/**
+ * status:
+ *      0 = DOWN
+ *      1 = UP
+ *      2 = PENDING
+ *      3 = MAINTENANCE
+ */
+class Monitor extends BeanModel {
+
+    /**
+     * Return an object that ready to parse to JSON for public Only show
+     * necessary data to public
+     * @param {boolean} showTags Include tags in JSON
+     * @param {boolean} certExpiry Include certificate expiry info in
+     * JSON
+     * @returns {Promise<object>} Object ready to parse
+     */
+    async toPublicJSON(showTags = false, certExpiry = false) {
+        let obj = {
+            id: this.id,
+            name: this.name,
+            sendUrl: this.sendUrl,
+            type: this.type,
+        };
+
+        if (this.sendUrl) {
+            obj.url = this.url;
+        }
+
+        if (showTags) {
+            obj.tags = await this.getTags();
+        }
+
+        if (certExpiry && (this.type === "http" || this.type === "keyword" || this.type === "json-query") && this.getURLProtocol() === "https:") {
+            const { certExpiryDaysRemaining, validCert } = await this.getCertExpiry(this.id);
+            obj.certExpiryDaysRemaining = certExpiryDaysRemaining;
+            obj.validCert = validCert;
+        }
+
+        return obj;
+    }
+
+    /**
+     * Return an object that ready to parse to JSON
+     * @param {object} preloadData to prevent n+1 problems, we query the data in a batch outside of this function
+     * @param {boolean} includeSensitiveData Include sensitive data in
+     * JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON(preloadData = {}, includeSensitiveData = true) {
+
+        let screenshot = null;
+
+        if (this.type === "real-browser") {
+            screenshot = "/screenshots/" + jwt.sign(this.id, UptimeKumaServer.getInstance().jwtSecret) + ".png";
+        }
+
+        const path = preloadData.paths.get(this.id) || [];
+        const pathName = path.join(" / ");
+
+        let data = {
+            id: this.id,
+            name: this.name,
+            description: this.description,
+            path,
+            pathName,
+            parent: this.parent,
+            childrenIDs: preloadData.childrenIDs.get(this.id) || [],
+            url: this.url,
+            method: this.method,
+            hostname: this.hostname,
+            port: this.port,
+            maxretries: this.maxretries,
+            weight: this.weight,
+            active: preloadData.activeStatus.get(this.id),
+            forceInactive: preloadData.forceInactive.get(this.id),
+            type: this.type,
+            timeout: this.timeout,
+            interval: this.interval,
+            retryInterval: this.retryInterval,
+            resendInterval: this.resendInterval,
+            keyword: this.keyword,
+            invertKeyword: this.isInvertKeyword(),
+            expiryNotification: this.isEnabledExpiryNotification(),
+            ignoreTls: this.getIgnoreTls(),
+            upsideDown: this.isUpsideDown(),
+            packetSize: this.packetSize,
+            maxredirects: this.maxredirects,
+            accepted_statuscodes: this.getAcceptedStatuscodes(),
+            dns_resolve_type: this.dns_resolve_type,
+            dns_resolve_server: this.dns_resolve_server,
+            dns_last_result: this.dns_last_result,
+            docker_container: this.docker_container,
+            docker_host: this.docker_host,
+            proxyId: this.proxy_id,
+            notificationIDList: preloadData.notifications.get(this.id) || {},
+            tags: preloadData.tags.get(this.id) || [],
+            maintenance: preloadData.maintenanceStatus.get(this.id),
+            mqttTopic: this.mqttTopic,
+            mqttSuccessMessage: this.mqttSuccessMessage,
+            mqttCheckType: this.mqttCheckType,
+            databaseQuery: this.databaseQuery,
+            authMethod: this.authMethod,
+            grpcUrl: this.grpcUrl,
+            grpcProtobuf: this.grpcProtobuf,
+            grpcMethod: this.grpcMethod,
+            grpcServiceName: this.grpcServiceName,
+            grpcEnableTls: this.getGrpcEnableTls(),
+            radiusCalledStationId: this.radiusCalledStationId,
+            radiusCallingStationId: this.radiusCallingStationId,
+            game: this.game,
+            gamedigGivenPortOnly: this.getGameDigGivenPortOnly(),
+            httpBodyEncoding: this.httpBodyEncoding,
+            jsonPath: this.jsonPath,
+            expectedValue: this.expectedValue,
+            kafkaProducerTopic: this.kafkaProducerTopic,
+            kafkaProducerBrokers: JSON.parse(this.kafkaProducerBrokers),
+            kafkaProducerSsl: this.getKafkaProducerSsl(),
+            kafkaProducerAllowAutoTopicCreation: this.getKafkaProducerAllowAutoTopicCreation(),
+            kafkaProducerMessage: this.kafkaProducerMessage,
+            screenshot,
+            cacheBust: this.getCacheBust(),
+            remote_browser: this.remote_browser,
+            snmpOid: this.snmpOid,
+            jsonPathOperator: this.jsonPathOperator,
+            snmpVersion: this.snmpVersion,
+            rabbitmqNodes: JSON.parse(this.rabbitmqNodes),
+            conditions: JSON.parse(this.conditions),
+        };
+
+        if (includeSensitiveData) {
+            data = {
+                ...data,
+                headers: this.headers,
+                body: this.body,
+                grpcBody: this.grpcBody,
+                grpcMetadata: this.grpcMetadata,
+                basic_auth_user: this.basic_auth_user,
+                basic_auth_pass: this.basic_auth_pass,
+                oauth_client_id: this.oauth_client_id,
+                oauth_client_secret: this.oauth_client_secret,
+                oauth_token_url: this.oauth_token_url,
+                oauth_scopes: this.oauth_scopes,
+                oauth_auth_method: this.oauth_auth_method,
+                pushToken: this.pushToken,
+                databaseConnectionString: this.databaseConnectionString,
+                radiusUsername: this.radiusUsername,
+                radiusPassword: this.radiusPassword,
+                radiusSecret: this.radiusSecret,
+                mqttUsername: this.mqttUsername,
+                mqttPassword: this.mqttPassword,
+                authWorkstation: this.authWorkstation,
+                authDomain: this.authDomain,
+                tlsCa: this.tlsCa,
+                tlsCert: this.tlsCert,
+                tlsKey: this.tlsKey,
+                kafkaProducerSaslOptions: JSON.parse(this.kafkaProducerSaslOptions),
+                rabbitmqUsername: this.rabbitmqUsername,
+                rabbitmqPassword: this.rabbitmqPassword,
+            };
+        }
+
+        data.includeSensitiveData = includeSensitiveData;
+        return data;
+    }
+
+    /**
+     * Get all tags applied to this monitor
+     * @returns {Promise<LooseObject<any>[]>} List of tags on the
+     * monitor
+     */
+    async getTags() {
+        return await R.getAll("SELECT mt.*, tag.name, tag.color FROM monitor_tag mt JOIN tag ON mt.tag_id = tag.id WHERE mt.monitor_id = ? ORDER BY tag.name", [ this.id ]);
+    }
+
+    /**
+     * Gets certificate expiry for this monitor
+     * @param {number} monitorID ID of monitor to send
+     * @returns {Promise<LooseObject<any>>} Certificate expiry info for
+     * monitor
+     */
+    async getCertExpiry(monitorID) {
+        let tlsInfoBean = await R.findOne("monitor_tls_info", "monitor_id = ?", [
+            monitorID,
+        ]);
+        let tlsInfo;
+        if (tlsInfoBean) {
+            tlsInfo = JSON.parse(tlsInfoBean?.info_json);
+            if (tlsInfo?.valid && tlsInfo?.certInfo?.daysRemaining) {
+                return {
+                    certExpiryDaysRemaining: tlsInfo.certInfo.daysRemaining,
+                    validCert: true
+                };
+            }
+        }
+        return {
+            certExpiryDaysRemaining: "",
+            validCert: false
+        };
+    }
+
+    /**
+     * Encode user and password to Base64 encoding
+     * for HTTP "basic" auth, as per RFC-7617
+     * @param {string|null} user - The username (nullable if not changed by a user)
+     * @param {string|null} pass - The password (nullable if not changed by a user)
+     * @returns {string} Encoded Base64 string
+     */
+    encodeBase64(user, pass) {
+        return Buffer.from(`${user || ""}:${pass || ""}`).toString("base64");
+    }
+
+    /**
+     * Is the TLS expiry notification enabled?
+     * @returns {boolean} Enabled?
+     */
+    isEnabledExpiryNotification() {
+        return Boolean(this.expiryNotification);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} Should TLS errors be ignored?
+     */
+    getIgnoreTls() {
+        return Boolean(this.ignoreTls);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} Is the monitor in upside down mode?
+     */
+    isUpsideDown() {
+        return Boolean(this.upsideDown);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} Invert keyword match?
+     */
+    isInvertKeyword() {
+        return Boolean(this.invertKeyword);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} Enable TLS for gRPC?
+     */
+    getGrpcEnableTls() {
+        return Boolean(this.grpcEnableTls);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} if cachebusting is enabled
+     */
+    getCacheBust() {
+        return Boolean(this.cacheBust);
+    }
+
+    /**
+     * Get accepted status codes
+     * @returns {object} Accepted status codes
+     */
+    getAcceptedStatuscodes() {
+        return JSON.parse(this.accepted_statuscodes_json);
+    }
+
+    /**
+     * Get if game dig should only use the port which was provided
+     * @returns {boolean} gamedig should only use the provided port
+     */
+    getGameDigGivenPortOnly() {
+        return Boolean(this.gamedigGivenPortOnly);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} Kafka Producer Ssl enabled?
+     */
+    getKafkaProducerSsl() {
+        return Boolean(this.kafkaProducerSsl);
+    }
+
+    /**
+     * Parse to boolean
+     * @returns {boolean} Kafka Producer Allow Auto Topic Creation Enabled?
+     */
+    getKafkaProducerAllowAutoTopicCreation() {
+        return Boolean(this.kafkaProducerAllowAutoTopicCreation);
+    }
+
+    /**
+     * Start monitor
+     * @param {Server} io Socket server instance
+     * @returns {Promise<void>}
+     */
+    async start(io) {
+        let previousBeat = null;
+        let retries = 0;
+
+        this.prometheus = new Prometheus(this);
+
+        const beat = async () => {
+
+            let beatInterval = this.interval;
+
+            if (! beatInterval) {
+                beatInterval = 1;
+            }
+
+            if (demoMode) {
+                if (beatInterval < 20) {
+                    console.log("beat interval too low, reset to 20s");
+                    beatInterval = 20;
+                }
+            }
+
+            // Expose here for prometheus update
+            // undefined if not https
+            let tlsInfo = undefined;
+
+            if (!previousBeat || this.type === "push") {
+                previousBeat = await R.findOne("heartbeat", " monitor_id = ? ORDER BY time DESC", [
+                    this.id,
+                ]);
+                if (previousBeat) {
+                    retries = previousBeat.retries;
+                }
+            }
+
+            const isFirstBeat = !previousBeat;
+
+            let bean = R.dispense("heartbeat");
+            bean.monitor_id = this.id;
+            bean.time = R.isoDateTimeMillis(dayjs.utc());
+            bean.status = DOWN;
+            bean.downCount = previousBeat?.downCount || 0;
+
+            if (this.isUpsideDown()) {
+                bean.status = flipStatus(bean.status);
+            }
+
+            // Runtime patch timeout if it is 0
+            // See https://github.com/louislam/uptime-kuma/pull/3961#issuecomment-1804149144
+            if (!this.timeout || this.timeout <= 0) {
+                this.timeout = this.interval * 1000 * 0.8;
+            }
+
+            try {
+                if (await Monitor.isUnderMaintenance(this.id)) {
+                    bean.msg = "Monitor under maintenance";
+                    bean.status = MAINTENANCE;
+                } else if (this.type === "group") {
+                    const children = await Monitor.getChildren(this.id);
+
+                    if (children.length > 0) {
+                        bean.status = UP;
+                        bean.msg = "All children up and running";
+                        for (const child of children) {
+                            if (!child.active) {
+                                // Ignore inactive childs
+                                continue;
+                            }
+                            const lastBeat = await Monitor.getPreviousHeartbeat(child.id);
+
+                            // Only change state if the monitor is in worse conditions then the ones before
+                            // lastBeat.status could be null
+                            if (!lastBeat) {
+                                bean.status = PENDING;
+                            } else if (bean.status === UP && (lastBeat.status === PENDING || lastBeat.status === DOWN)) {
+                                bean.status = lastBeat.status;
+                            } else if (bean.status === PENDING && lastBeat.status === DOWN) {
+                                bean.status = lastBeat.status;
+                            }
+                        }
+
+                        if (bean.status !== UP) {
+                            bean.msg = "Child inaccessible";
+                        }
+                    } else {
+                        // Set status pending if group is empty
+                        bean.status = PENDING;
+                        bean.msg = "Group empty";
+                    }
+
+                } else if (this.type === "http" || this.type === "keyword" || this.type === "json-query") {
+                    // Do not do any queries/high loading things before the "bean.ping"
+                    let startTime = dayjs().valueOf();
+
+                    // HTTP basic auth
+                    let basicAuthHeader = {};
+                    if (this.auth_method === "basic") {
+                        basicAuthHeader = {
+                            "Authorization": "Basic " + this.encodeBase64(this.basic_auth_user, this.basic_auth_pass),
+                        };
+                    }
+
+                    // OIDC: Basic client credential flow.
+                    // Additional grants might be implemented in the future
+                    let oauth2AuthHeader = {};
+                    if (this.auth_method === "oauth2-cc") {
+                        try {
+                            if (this.oauthAccessToken === undefined || new Date(this.oauthAccessToken.expires_at * 1000) <= new Date()) {
+                                this.oauthAccessToken = await this.makeOidcTokenClientCredentialsRequest();
+                            }
+                            oauth2AuthHeader = {
+                                "Authorization": this.oauthAccessToken.token_type + " " + this.oauthAccessToken.access_token,
+                            };
+                        } catch (e) {
+                            throw new Error("The oauth config is invalid. " + e.message);
+                        }
+                    }
+
+                    const httpsAgentOptions = {
+                        maxCachedSessions: 0, // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
+                        rejectUnauthorized: !this.getIgnoreTls(),
+                        secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
+                    };
+
+                    log.debug("monitor", `[${this.name}] Prepare Options for axios`);
+
+                    let contentType = null;
+                    let bodyValue = null;
+
+                    if (this.body && (typeof this.body === "string" && this.body.trim().length > 0)) {
+                        if (!this.httpBodyEncoding || this.httpBodyEncoding === "json") {
+                            try {
+                                bodyValue = JSON.parse(this.body);
+                                contentType = "application/json";
+                            } catch (e) {
+                                throw new Error("Your JSON body is invalid. " + e.message);
+                            }
+                        } else if (this.httpBodyEncoding === "form") {
+                            bodyValue = this.body;
+                            contentType = "application/x-www-form-urlencoded";
+                        } else if (this.httpBodyEncoding === "xml") {
+                            bodyValue = this.body;
+                            contentType = "text/xml; charset=utf-8";
+                        }
+                    }
+
+                    // Axios Options
+                    const options = {
+                        url: this.url,
+                        method: (this.method || "get").toLowerCase(),
+                        timeout: this.timeout * 1000,
+                        headers: {
+                            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
+                            ...(contentType ? { "Content-Type": contentType } : {}),
+                            ...(basicAuthHeader),
+                            ...(oauth2AuthHeader),
+                            ...(this.headers ? JSON.parse(this.headers) : {})
+                        },
+                        maxRedirects: this.maxredirects,
+                        validateStatus: (status) => {
+                            return checkStatusCode(status, this.getAcceptedStatuscodes());
+                        },
+                        signal: axiosAbortSignal((this.timeout + 10) * 1000),
+                    };
+
+                    if (bodyValue) {
+                        options.data = bodyValue;
+                    }
+
+                    if (this.cacheBust) {
+                        const randomFloatString = Math.random().toString(36);
+                        const cacheBust = randomFloatString.substring(2);
+                        options.params = {
+                            uptime_kuma_cachebuster: cacheBust,
+                        };
+                    }
+
+                    if (this.proxy_id) {
+                        const proxy = await R.load("proxy", this.proxy_id);
+
+                        if (proxy && proxy.active) {
+                            const { httpAgent, httpsAgent } = Proxy.createAgents(proxy, {
+                                httpsAgentOptions: httpsAgentOptions,
+                            });
+
+                            options.proxy = false;
+                            options.httpAgent = httpAgent;
+                            options.httpsAgent = httpsAgent;
+                        }
+                    }
+
+                    if (!options.httpsAgent) {
+                        let jar = new CookieJar();
+                        let httpsCookieAgentOptions = {
+                            ...httpsAgentOptions,
+                            cookies: { jar }
+                        };
+                        options.httpsAgent = new HttpsCookieAgent(httpsCookieAgentOptions);
+                    }
+
+                    if (this.auth_method === "mtls") {
+                        if (this.tlsCert !== null && this.tlsCert !== "") {
+                            options.httpsAgent.options.cert = Buffer.from(this.tlsCert);
+                        }
+                        if (this.tlsCa !== null && this.tlsCa !== "") {
+                            options.httpsAgent.options.ca = Buffer.from(this.tlsCa);
+                        }
+                        if (this.tlsKey !== null && this.tlsKey !== "") {
+                            options.httpsAgent.options.key = Buffer.from(this.tlsKey);
+                        }
+                    }
+
+                    let tlsInfo = {};
+                    // Store tlsInfo when secureConnect event is emitted
+                    // The keylog event listener is a workaround to access the tlsSocket
+                    options.httpsAgent.once("keylog", async (line, tlsSocket) => {
+                        tlsSocket.once("secureConnect", async () => {
+                            tlsInfo = checkCertificate(tlsSocket);
+                            tlsInfo.valid = tlsSocket.authorized || false;
+
+                            await this.handleTlsInfo(tlsInfo);
+                        });
+                    });
+
+                    log.debug("monitor", `[${this.name}] Axios Options: ${JSON.stringify(options)}`);
+                    log.debug("monitor", `[${this.name}] Axios Request`);
+
+                    // Make Request
+                    let res = await this.makeAxiosRequest(options);
+
+                    bean.msg = `${res.status} - ${res.statusText}`;
+                    bean.ping = dayjs().valueOf() - startTime;
+
+                    // fallback for if kelog event is not emitted, but we may still have tlsInfo,
+                    // e.g. if the connection is made through a proxy
+                    if (this.getUrl()?.protocol === "https:" && tlsInfo.valid === undefined) {
+                        const tlsSocket = res.request.res.socket;
+
+                        if (tlsSocket) {
+                            tlsInfo = checkCertificate(tlsSocket);
+                            tlsInfo.valid = tlsSocket.authorized || false;
+
+                            await this.handleTlsInfo(tlsInfo);
+                        }
+                    }
+
+                    if (process.env.UPTIME_KUMA_LOG_RESPONSE_BODY_MONITOR_ID === this.id) {
+                        log.info("monitor", res.data);
+                    }
+
+                    if (this.type === "http") {
+                        bean.status = UP;
+                    } else if (this.type === "keyword") {
+
+                        let data = res.data;
+
+                        // Convert to string for object/array
+                        if (typeof data !== "string") {
+                            data = JSON.stringify(data);
+                        }
+
+                        let keywordFound = data.includes(this.keyword);
+                        if (keywordFound === !this.isInvertKeyword()) {
+                            bean.msg += ", keyword " + (keywordFound ? "is" : "not") + " found";
+                            bean.status = UP;
+                        } else {
+                            data = data.replace(/<[^>]*>?|[\n\r]|\s+/gm, " ").trim();
+                            if (data.length > 50) {
+                                data = data.substring(0, 47) + "...";
+                            }
+                            throw new Error(bean.msg + ", but keyword is " +
+                                (keywordFound ? "present" : "not") + " in [" + data + "]");
+                        }
+
+                    } else if (this.type === "json-query") {
+                        let data = res.data;
+
+                        const { status, response } = await evaluateJsonQuery(data, this.jsonPath, this.jsonPathOperator, this.expectedValue);
+
+                        if (status) {
+                            bean.status = UP;
+                            bean.msg = `JSON query passes (comparing ${response} ${this.jsonPathOperator} ${this.expectedValue})`;
+                        } else {
+                            throw new Error(`JSON query does not pass (comparing ${response} ${this.jsonPathOperator} ${this.expectedValue})`);
+                        }
+
+                    }
+
+                } else if (this.type === "port") {
+                    bean.ping = await tcping(this.hostname, this.port);
+                    bean.msg = "";
+                    bean.status = UP;
+
+                } else if (this.type === "ping") {
+                    bean.ping = await ping(this.hostname, this.packetSize);
+                    bean.msg = "";
+                    bean.status = UP;
+                } else if (this.type === "push") {      // Type: Push
+                    log.debug("monitor", `[${this.name}] Checking monitor at ${dayjs().format("YYYY-MM-DD HH:mm:ss.SSS")}`);
+                    const bufferTime = 1000; // 1s buffer to accommodate clock differences
+
+                    if (previousBeat) {
+                        const msSinceLastBeat = dayjs.utc().valueOf() - dayjs.utc(previousBeat.time).valueOf();
+
+                        log.debug("monitor", `[${this.name}] msSinceLastBeat = ${msSinceLastBeat}`);
+
+                        // If the previous beat was down or pending we use the regular
+                        // beatInterval/retryInterval in the setTimeout further below
+                        if (previousBeat.status !== (this.isUpsideDown() ? DOWN : UP) || msSinceLastBeat > beatInterval * 1000 + bufferTime) {
+                            bean.duration = Math.round(msSinceLastBeat / 1000);
+                            throw new Error("No heartbeat in the time window");
+                        } else {
+                            let timeout = beatInterval * 1000 - msSinceLastBeat;
+                            if (timeout < 0) {
+                                timeout = bufferTime;
+                            } else {
+                                timeout += bufferTime;
+                            }
+                            // No need to insert successful heartbeat for push type, so end here
+                            retries = 0;
+                            log.debug("monitor", `[${this.name}] timeout = ${timeout}`);
+                            this.heartbeatInterval = setTimeout(safeBeat, timeout);
+                            return;
+                        }
+                    } else {
+                        bean.duration = beatInterval;
+                        throw new Error("No heartbeat in the time window");
+                    }
+
+                } else if (this.type === "steam") {
+                    const steamApiUrl = "https://api.steampowered.com/IGameServersService/GetServerList/v1/";
+                    const steamAPIKey = await setting("steamAPIKey");
+                    const filter = `addr\\${this.hostname}:${this.port}`;
+
+                    if (!steamAPIKey) {
+                        throw new Error("Steam API Key not found");
+                    }
+
+                    let res = await axios.get(steamApiUrl, {
+                        timeout: this.timeout * 1000,
+                        headers: {
+                            "Accept": "*/*",
+                        },
+                        httpsAgent: new https.Agent({
+                            maxCachedSessions: 0,      // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
+                            rejectUnauthorized: !this.getIgnoreTls(),
+                            secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
+                        }),
+                        httpAgent: new http.Agent({
+                            maxCachedSessions: 0,
+                        }),
+                        maxRedirects: this.maxredirects,
+                        validateStatus: (status) => {
+                            return checkStatusCode(status, this.getAcceptedStatuscodes());
+                        },
+                        params: {
+                            filter: filter,
+                            key: steamAPIKey,
+                        }
+                    });
+
+                    if (res.data.response && res.data.response.servers && res.data.response.servers.length > 0) {
+                        bean.status = UP;
+                        bean.msg = res.data.response.servers[0].name;
+
+                        try {
+                            bean.ping = await ping(this.hostname, this.packetSize);
+                        } catch (_) { }
+                    } else {
+                        throw new Error("Server not found on Steam");
+                    }
+                } else if (this.type === "gamedig") {
+                    try {
+                        const state = await Gamedig.query({
+                            type: this.game,
+                            host: this.hostname,
+                            port: this.port,
+                            givenPortOnly: this.getGameDigGivenPortOnly(),
+                        });
+
+                        bean.msg = state.name;
+                        bean.status = UP;
+                        bean.ping = state.ping;
+                    } catch (e) {
+                        throw new Error(e.message);
+                    }
+                } else if (this.type === "docker") {
+                    log.debug("monitor", `[${this.name}] Prepare Options for Axios`);
+
+                    const options = {
+                        url: `/containers/${this.docker_container}/json`,
+                        timeout: this.interval * 1000 * 0.8,
+                        headers: {
+                            "Accept": "*/*",
+                        },
+                        httpsAgent: new https.Agent({
+                            maxCachedSessions: 0,      // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
+                            rejectUnauthorized: !this.getIgnoreTls(),
+                            secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
+                        }),
+                        httpAgent: new http.Agent({
+                            maxCachedSessions: 0,
+                        }),
+                    };
+
+                    const dockerHost = await R.load("docker_host", this.docker_host);
+
+                    if (!dockerHost) {
+                        throw new Error("Failed to load docker host config");
+                    }
+
+                    if (dockerHost._dockerType === "socket") {
+                        options.socketPath = dockerHost._dockerDaemon;
+                    } else if (dockerHost._dockerType === "tcp") {
+                        options.baseURL = DockerHost.patchDockerURL(dockerHost._dockerDaemon);
+                        options.httpsAgent = new https.Agent(
+                            DockerHost.getHttpsAgentOptions(dockerHost._dockerType, options.baseURL)
+                        );
+                    }
+
+                    log.debug("monitor", `[${this.name}] Axios Request`);
+                    let res = await axios.request(options);
+
+                    if (res.data.State.Running) {
+                        if (res.data.State.Health && res.data.State.Health.Status !== "healthy") {
+                            bean.status = PENDING;
+                            bean.msg = res.data.State.Health.Status;
+                        } else {
+                            bean.status = UP;
+                            bean.msg = res.data.State.Health ? res.data.State.Health.Status : res.data.State.Status;
+                        }
+                    } else {
+                        throw Error("Container State is " + res.data.State.Status);
+                    }
+                } else if (this.type === "sqlserver") {
+                    let startTime = dayjs().valueOf();
+
+                    await mssqlQuery(this.databaseConnectionString, this.databaseQuery || "SELECT 1");
+
+                    bean.msg = "";
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+                } else if (this.type === "grpc-keyword") {
+                    let startTime = dayjs().valueOf();
+                    const options = {
+                        grpcUrl: this.grpcUrl,
+                        grpcProtobufData: this.grpcProtobuf,
+                        grpcServiceName: this.grpcServiceName,
+                        grpcEnableTls: this.grpcEnableTls,
+                        grpcMethod: this.grpcMethod,
+                        grpcBody: this.grpcBody,
+                    };
+                    const response = await grpcQuery(options);
+                    bean.ping = dayjs().valueOf() - startTime;
+                    log.debug("monitor:", `gRPC response: ${JSON.stringify(response)}`);
+                    let responseData = response.data;
+                    if (responseData.length > 50) {
+                        responseData = responseData.toString().substring(0, 47) + "...";
+                    }
+                    if (response.code !== 1) {
+                        bean.status = DOWN;
+                        bean.msg = `Error in send gRPC ${response.code} ${response.errorMessage}`;
+                    } else {
+                        let keywordFound = response.data.toString().includes(this.keyword);
+                        if (keywordFound === !this.isInvertKeyword()) {
+                            bean.status = UP;
+                            bean.msg = `${responseData}, keyword [${this.keyword}] ${keywordFound ? "is" : "not"} found`;
+                        } else {
+                            log.debug("monitor:", `GRPC response [${response.data}] + ", but keyword [${this.keyword}] is ${keywordFound ? "present" : "not"} in [" + ${response.data} + "]"`);
+                            bean.status = DOWN;
+                            bean.msg = `, but keyword [${this.keyword}] is ${keywordFound ? "present" : "not"} in [" + ${responseData} + "]`;
+                        }
+                    }
+                } else if (this.type === "postgres") {
+                    let startTime = dayjs().valueOf();
+
+                    await postgresQuery(this.databaseConnectionString, this.databaseQuery || "SELECT 1");
+
+                    bean.msg = "";
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+                } else if (this.type === "mysql") {
+                    let startTime = dayjs().valueOf();
+
+                    // Use `radius_password` as `password` field, since there are too many unnecessary fields
+                    // TODO: rename `radius_password` to `password` later for general use
+                    let mysqlPassword = this.radiusPassword;
+
+                    bean.msg = await mysqlQuery(this.databaseConnectionString, this.databaseQuery || "SELECT 1", mysqlPassword);
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+                } else if (this.type === "radius") {
+                    let startTime = dayjs().valueOf();
+
+                    // Handle monitors that were created before the
+                    // update and as such don't have a value for
+                    // this.port.
+                    let port;
+                    if (this.port == null) {
+                        port = 1812;
+                    } else {
+                        port = this.port;
+                    }
+
+                    const resp = await radius(
+                        this.hostname,
+                        this.radiusUsername,
+                        this.radiusPassword,
+                        this.radiusCalledStationId,
+                        this.radiusCallingStationId,
+                        this.radiusSecret,
+                        port,
+                        this.interval * 1000 * 0.4,
+                    );
+
+                    bean.msg = resp.code;
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+                } else if (this.type === "redis") {
+                    let startTime = dayjs().valueOf();
+
+                    bean.msg = await redisPingAsync(this.databaseConnectionString, !this.ignoreTls);
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+
+                } else if (this.type in UptimeKumaServer.monitorTypeList) {
+                    let startTime = dayjs().valueOf();
+                    const monitorType = UptimeKumaServer.monitorTypeList[this.type];
+                    await monitorType.check(this, bean, UptimeKumaServer.getInstance());
+                    if (!bean.ping) {
+                        bean.ping = dayjs().valueOf() - startTime;
+                    }
+
+                } else if (this.type === "kafka-producer") {
+                    let startTime = dayjs().valueOf();
+
+                    bean.msg = await kafkaProducerAsync(
+                        JSON.parse(this.kafkaProducerBrokers),
+                        this.kafkaProducerTopic,
+                        this.kafkaProducerMessage,
+                        {
+                            allowAutoTopicCreation: this.kafkaProducerAllowAutoTopicCreation,
+                            ssl: this.kafkaProducerSsl,
+                            clientId: `Uptime-Kuma/${version}`,
+                            interval: this.interval,
+                        },
+                        JSON.parse(this.kafkaProducerSaslOptions),
+                    );
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+
+                } else {
+                    throw new Error("Unknown Monitor Type");
+                }
+
+                if (this.isUpsideDown()) {
+                    bean.status = flipStatus(bean.status);
+
+                    if (bean.status === DOWN) {
+                        throw new Error("Flip UP to DOWN");
+                    }
+                }
+
+                retries = 0;
+
+            } catch (error) {
+
+                if (error?.name === "CanceledError") {
+                    bean.msg = `timeout by AbortSignal (${this.timeout}s)`;
+                } else {
+                    bean.msg = error.message;
+                }
+
+                // If UP come in here, it must be upside down mode
+                // Just reset the retries
+                if (this.isUpsideDown() && bean.status === UP) {
+                    retries = 0;
+
+                } else if ((this.maxretries > 0) && (retries < this.maxretries)) {
+                    retries++;
+                    bean.status = PENDING;
+                } else {
+                    // Continue counting retries during DOWN
+                    retries++;
+                }
+            }
+
+            bean.retries = retries;
+
+            log.debug("monitor", `[${this.name}] Check isImportant`);
+            let isImportant = Monitor.isImportantBeat(isFirstBeat, previousBeat?.status, bean.status);
+
+            // Mark as important if status changed, ignore pending pings,
+            // Don't notify if disrupted changes to up
+            if (isImportant) {
+                bean.important = true;
+
+                if (Monitor.isImportantForNotification(isFirstBeat, previousBeat?.status, bean.status)) {
+                    log.debug("monitor", `[${this.name}] sendNotification`);
+                    await Monitor.sendNotification(isFirstBeat, this, bean);
+                } else {
+                    log.debug("monitor", `[${this.name}] will not sendNotification because it is (or was) under maintenance`);
+                }
+
+                // Reset down count
+                bean.downCount = 0;
+
+                // Clear Status Page Cache
+                log.debug("monitor", `[${this.name}] apicache clear`);
+                apicache.clear();
+
+                await UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+
+            } else {
+                bean.important = false;
+
+                if (bean.status === DOWN && this.resendInterval > 0) {
+                    ++bean.downCount;
+                    if (bean.downCount >= this.resendInterval) {
+                        // Send notification again, because we are still DOWN
+                        log.debug("monitor", `[${this.name}] sendNotification again: Down Count: ${bean.downCount} | Resend Interval: ${this.resendInterval}`);
+                        await Monitor.sendNotification(isFirstBeat, this, bean);
+
+                        // Reset down count
+                        bean.downCount = 0;
+                    }
+                }
+            }
+
+            if (bean.status === UP) {
+                log.debug("monitor", `Monitor #${this.id} '${this.name}': Successful Response: ${bean.ping} ms | Interval: ${beatInterval} seconds | Type: ${this.type}`);
+            } else if (bean.status === PENDING) {
+                if (this.retryInterval > 0) {
+                    beatInterval = this.retryInterval;
+                }
+                log.warn("monitor", `Monitor #${this.id} '${this.name}': Pending: ${bean.msg} | Max retries: ${this.maxretries} | Retry: ${retries} | Retry Interval: ${beatInterval} seconds | Type: ${this.type}`);
+            } else if (bean.status === MAINTENANCE) {
+                log.warn("monitor", `Monitor #${this.id} '${this.name}': Under Maintenance | Type: ${this.type}`);
+            } else {
+                log.warn("monitor", `Monitor #${this.id} '${this.name}': Failing: ${bean.msg} | Interval: ${beatInterval} seconds | Type: ${this.type} | Down Count: ${bean.downCount} | Resend Interval: ${this.resendInterval}`);
+            }
+
+            // Calculate uptime
+            let uptimeCalculator = await UptimeCalculator.getUptimeCalculator(this.id);
+            let endTimeDayjs = await uptimeCalculator.update(bean.status, parseFloat(bean.ping));
+            bean.end_time = R.isoDateTimeMillis(endTimeDayjs);
+
+            // Send to frontend
+            log.debug("monitor", `[${this.name}] Send to socket`);
+            io.to(this.user_id).emit("heartbeat", bean.toJSON());
+            Monitor.sendStats(io, this.id, this.user_id);
+
+            // Store to database
+            log.debug("monitor", `[${this.name}] Store`);
+            await R.store(bean);
+
+            log.debug("monitor", `[${this.name}] prometheus.update`);
+            this.prometheus?.update(bean, tlsInfo);
+
+            previousBeat = bean;
+
+            if (! this.isStop) {
+                log.debug("monitor", `[${this.name}] SetTimeout for next check.`);
+
+                let intervalRemainingMs = Math.max(
+                    1,
+                    beatInterval * 1000 - dayjs().diff(dayjs.utc(bean.time))
+                );
+
+                log.debug("monitor", `[${this.name}] Next heartbeat in: ${intervalRemainingMs}ms`);
+
+                this.heartbeatInterval = setTimeout(safeBeat, intervalRemainingMs);
+            } else {
+                log.info("monitor", `[${this.name}] isStop = true, no next check.`);
+            }
+
+        };
+
+        /**
+         * Get a heartbeat and handle errors7
+         * @returns {void}
+         */
+        const safeBeat = async () => {
+            try {
+                await beat();
+            } catch (e) {
+                console.trace(e);
+                UptimeKumaServer.errorLog(e, false);
+                log.error("monitor", "Please report to https://github.com/louislam/uptime-kuma/issues");
+
+                if (! this.isStop) {
+                    log.info("monitor", "Try to restart the monitor");
+                    this.heartbeatInterval = setTimeout(safeBeat, this.interval * 1000);
+                }
+            }
+        };
+
+        // Delay Push Type
+        if (this.type === "push") {
+            setTimeout(() => {
+                safeBeat();
+            }, this.interval * 1000);
+        } else {
+            safeBeat();
+        }
+    }
+
+    /**
+     * Make a request using axios
+     * @param {object} options Options for Axios
+     * @param {boolean} finalCall Should this be the final call i.e
+     * don't retry on failure
+     * @returns {object} Axios response
+     */
+    async makeAxiosRequest(options, finalCall = false) {
+        try {
+            let res;
+            if (this.auth_method === "ntlm") {
+                options.httpsAgent.keepAlive = true;
+
+                res = await httpNtlm(options, {
+                    username: this.basic_auth_user,
+                    password: this.basic_auth_pass,
+                    domain: this.authDomain,
+                    workstation: this.authWorkstation ? this.authWorkstation : undefined
+                });
+            } else {
+                res = await axios.request(options);
+            }
+
+            return res;
+        } catch (error) {
+
+            /**
+             * Make a single attempt to obtain an new access token in the event that
+             * the recent api request failed for authentication purposes
+             */
+            if (this.auth_method === "oauth2-cc" && error.response.status === 401 && !finalCall) {
+                this.oauthAccessToken = await this.makeOidcTokenClientCredentialsRequest();
+                let oauth2AuthHeader = {
+                    "Authorization": this.oauthAccessToken.token_type + " " + this.oauthAccessToken.access_token,
+                };
+                options.headers = { ...(options.headers),
+                    ...(oauth2AuthHeader)
+                };
+
+                return this.makeAxiosRequest(options, true);
+            }
+
+            // Fix #2253
+            // Read more: https://stackoverflow.com/questions/1759956/curl-error-18-transfer-closed-with-outstanding-read-data-remaining
+            if (!finalCall && typeof error.message === "string" && error.message.includes("maxContentLength size of -1 exceeded")) {
+                log.debug("monitor", "makeAxiosRequest with gzip");
+                options.headers["Accept-Encoding"] = "gzip, deflate";
+                return this.makeAxiosRequest(options, true);
+            } else {
+                if (typeof error.message === "string" && error.message.includes("maxContentLength size of -1 exceeded")) {
+                    error.message = "response timeout: incomplete response within a interval";
+                }
+                throw error;
+            }
+        }
+    }
+
+    /**
+     * Stop monitor
+     * @returns {Promise<void>}
+     */
+    async stop() {
+        clearTimeout(this.heartbeatInterval);
+        this.isStop = true;
+
+        this.prometheus?.remove();
+    }
+
+    /**
+     * Get prometheus instance
+     * @returns {Prometheus|undefined} Current prometheus instance
+     */
+    getPrometheus() {
+        return this.prometheus;
+    }
+
+    /**
+     * Helper Method:
+     * returns URL object for further usage
+     * returns null if url is invalid
+     * @returns {(null|URL)} Monitor URL
+     */
+    getUrl() {
+        try {
+            return new URL(this.url);
+        } catch (_) {
+            return null;
+        }
+    }
+
+    /**
+     * Example: http: or https:
+     * @returns {(null|string)} URL's protocol
+     */
+    getURLProtocol() {
+        const url = this.getUrl();
+        if (url) {
+            return this.getUrl().protocol;
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Store TLS info to database
+     * @param {object} checkCertificateResult Certificate to update
+     * @returns {Promise<object>} Updated certificate
+     */
+    async updateTlsInfo(checkCertificateResult) {
+        let tlsInfoBean = await R.findOne("monitor_tls_info", "monitor_id = ?", [
+            this.id,
+        ]);
+
+        if (tlsInfoBean == null) {
+            tlsInfoBean = R.dispense("monitor_tls_info");
+            tlsInfoBean.monitor_id = this.id;
+        } else {
+
+            // Clear sent history if the cert changed.
+            try {
+                let oldCertInfo = JSON.parse(tlsInfoBean.info_json);
+
+                let isValidObjects = oldCertInfo && oldCertInfo.certInfo && checkCertificateResult && checkCertificateResult.certInfo;
+
+                if (isValidObjects) {
+                    if (oldCertInfo.certInfo.fingerprint256 !== checkCertificateResult.certInfo.fingerprint256) {
+                        log.debug("monitor", "Resetting sent_history");
+                        await R.exec("DELETE FROM notification_sent_history WHERE type = 'certificate' AND monitor_id = ?", [
+                            this.id
+                        ]);
+                    } else {
+                        log.debug("monitor", "No need to reset sent_history");
+                        log.debug("monitor", oldCertInfo.certInfo.fingerprint256);
+                        log.debug("monitor", checkCertificateResult.certInfo.fingerprint256);
+                    }
+                } else {
+                    log.debug("monitor", "Not valid object");
+                }
+            } catch (e) { }
+
+        }
+
+        tlsInfoBean.info_json = JSON.stringify(checkCertificateResult);
+        await R.store(tlsInfoBean);
+
+        return checkCertificateResult;
+    }
+
+    /**
+     * Checks if the monitor is active based on itself and its parents
+     * @param {number} monitorID ID of monitor to send
+     * @param {boolean} active is active
+     * @returns {Promise<boolean>} Is the monitor active?
+     */
+    static async isActive(monitorID, active) {
+        const parentActive = await Monitor.isParentActive(monitorID);
+
+        return (active === 1) && parentActive;
+    }
+
+    /**
+     * Send statistics to clients
+     * @param {Server} io Socket server instance
+     * @param {number} monitorID ID of monitor to send
+     * @param {number} userID ID of user to send to
+     * @returns {void}
+     */
+    static async sendStats(io, monitorID, userID) {
+        const hasClients = getTotalClientInRoom(io, userID) > 0;
+        let uptimeCalculator = await UptimeCalculator.getUptimeCalculator(monitorID);
+
+        if (hasClients) {
+            // Send 24 hour average ping
+            let data24h = await uptimeCalculator.get24Hour();
+            io.to(userID).emit("avgPing", monitorID, (data24h.avgPing) ? Number(data24h.avgPing.toFixed(2)) : null);
+
+            // Send 24 hour uptime
+            io.to(userID).emit("uptime", monitorID, 24, data24h.uptime);
+
+            // Send 30 day uptime
+            let data30d = await uptimeCalculator.get30Day();
+            io.to(userID).emit("uptime", monitorID, 720, data30d.uptime);
+
+            // Send 1-year uptime
+            let data1y = await uptimeCalculator.get1Year();
+            io.to(userID).emit("uptime", monitorID, "1y", data1y.uptime);
+
+            // Send Cert Info
+            await Monitor.sendCertInfo(io, monitorID, userID);
+        } else {
+            log.debug("monitor", "No clients in the room, no need to send stats");
+        }
+    }
+
+    /**
+     * Send certificate information to client
+     * @param {Server} io Socket server instance
+     * @param {number} monitorID ID of monitor to send
+     * @param {number} userID ID of user to send to
+     * @returns {void}
+     */
+    static async sendCertInfo(io, monitorID, userID) {
+        let tlsInfo = await R.findOne("monitor_tls_info", "monitor_id = ?", [
+            monitorID,
+        ]);
+        if (tlsInfo != null) {
+            io.to(userID).emit("certInfo", monitorID, tlsInfo.info_json);
+        }
+    }
+
+    /**
+     * Has status of monitor changed since last beat?
+     * @param {boolean} isFirstBeat Is this the first beat of this monitor?
+     * @param {const} previousBeatStatus Status of the previous beat
+     * @param {const} currentBeatStatus Status of the current beat
+     * @returns {boolean} True if is an important beat else false
+     */
+    static isImportantBeat(isFirstBeat, previousBeatStatus, currentBeatStatus) {
+        // * ? -> ANY STATUS = important [isFirstBeat]
+        // UP -> PENDING = not important
+        // * UP -> DOWN = important
+        // UP -> UP = not important
+        // PENDING -> PENDING = not important
+        // * PENDING -> DOWN = important
+        // PENDING -> UP = not important
+        // DOWN -> PENDING = this case not exists
+        // DOWN -> DOWN = not important
+        // * DOWN -> UP = important
+        // MAINTENANCE -> MAINTENANCE = not important
+        // * MAINTENANCE -> UP = important
+        // * MAINTENANCE -> DOWN = important
+        // * DOWN -> MAINTENANCE = important
+        // * UP -> MAINTENANCE = important
+        return isFirstBeat ||
+            (previousBeatStatus === DOWN && currentBeatStatus === MAINTENANCE) ||
+            (previousBeatStatus === UP && currentBeatStatus === MAINTENANCE) ||
+            (previousBeatStatus === MAINTENANCE && currentBeatStatus === DOWN) ||
+            (previousBeatStatus === MAINTENANCE && currentBeatStatus === UP) ||
+            (previousBeatStatus === UP && currentBeatStatus === DOWN) ||
+            (previousBeatStatus === DOWN && currentBeatStatus === UP) ||
+            (previousBeatStatus === PENDING && currentBeatStatus === DOWN);
+    }
+
+    /**
+     * Is this beat important for notifications?
+     * @param {boolean} isFirstBeat Is this the first beat of this monitor?
+     * @param {const} previousBeatStatus Status of the previous beat
+     * @param {const} currentBeatStatus Status of the current beat
+     * @returns {boolean} True if is an important beat else false
+     */
+    static isImportantForNotification(isFirstBeat, previousBeatStatus, currentBeatStatus) {
+        // * ? -> ANY STATUS = important [isFirstBeat]
+        // UP -> PENDING = not important
+        // * UP -> DOWN = important
+        // UP -> UP = not important
+        // PENDING -> PENDING = not important
+        // * PENDING -> DOWN = important
+        // PENDING -> UP = not important
+        // DOWN -> PENDING = this case not exists
+        // DOWN -> DOWN = not important
+        // * DOWN -> UP = important
+        // MAINTENANCE -> MAINTENANCE = not important
+        // MAINTENANCE -> UP = not important
+        // * MAINTENANCE -> DOWN = important
+        // DOWN -> MAINTENANCE = not important
+        // UP -> MAINTENANCE = not important
+        return isFirstBeat ||
+            (previousBeatStatus === MAINTENANCE && currentBeatStatus === DOWN) ||
+            (previousBeatStatus === UP && currentBeatStatus === DOWN) ||
+            (previousBeatStatus === DOWN && currentBeatStatus === UP) ||
+            (previousBeatStatus === PENDING && currentBeatStatus === DOWN);
+    }
+
+    /**
+     * Send a notification about a monitor
+     * @param {boolean} isFirstBeat Is this beat the first of this monitor?
+     * @param {Monitor} monitor The monitor to send a notificaton about
+     * @param {Bean} bean Status information about monitor
+     * @returns {void}
+     */
+    static async sendNotification(isFirstBeat, monitor, bean) {
+        if (!isFirstBeat || bean.status === DOWN) {
+            const notificationList = await Monitor.getNotificationList(monitor);
+
+            let text;
+            if (bean.status === UP) {
+                text = "✅ Up";
+            } else {
+                text = "🔴 Down";
+            }
+
+            let msg = `[${monitor.name}] [${text}] ${bean.msg}`;
+
+            for (let notification of notificationList) {
+                try {
+                    const heartbeatJSON = bean.toJSON();
+                    const monitorData = [{ id: monitor.id,
+                        active: monitor.active
+                    }];
+                    const preloadData = await Monitor.preparePreloadData(monitorData);
+                    // Prevent if the msg is undefined, notifications such as Discord cannot send out.
+                    if (!heartbeatJSON["msg"]) {
+                        heartbeatJSON["msg"] = "N/A";
+                    }
+
+                    // Also provide the time in server timezone
+                    heartbeatJSON["timezone"] = await UptimeKumaServer.getInstance().getTimezone();
+                    heartbeatJSON["timezoneOffset"] = UptimeKumaServer.getInstance().getTimezoneOffset();
+                    heartbeatJSON["localDateTime"] = dayjs.utc(heartbeatJSON["time"]).tz(heartbeatJSON["timezone"]).format(SQL_DATETIME_FORMAT);
+
+                    await Notification.send(JSON.parse(notification.config), msg, monitor.toJSON(preloadData, false), heartbeatJSON);
+                } catch (e) {
+                    log.error("monitor", "Cannot send notification to " + notification.name);
+                    log.error("monitor", e);
+                }
+            }
+        }
+    }
+
+    /**
+     * Get list of notification providers for a given monitor
+     * @param {Monitor} monitor Monitor to get notification providers for
+     * @returns {Promise<LooseObject<any>[]>} List of notifications
+     */
+    static async getNotificationList(monitor) {
+        let notificationList = await R.getAll("SELECT notification.* FROM notification, monitor_notification WHERE monitor_id = ? AND monitor_notification.notification_id = notification.id ", [
+            monitor.id,
+        ]);
+        return notificationList;
+    }
+
+    /**
+     * checks certificate chain for expiring certificates
+     * @param {object} tlsInfoObject Information about certificate
+     * @returns {void}
+     */
+    async checkCertExpiryNotifications(tlsInfoObject) {
+        if (tlsInfoObject && tlsInfoObject.certInfo && tlsInfoObject.certInfo.daysRemaining) {
+            const notificationList = await Monitor.getNotificationList(this);
+
+            if (! notificationList.length > 0) {
+                // fail fast. If no notification is set, all the following checks can be skipped.
+                log.debug("monitor", "No notification, no need to send cert notification");
+                return;
+            }
+
+            let notifyDays = await setting("tlsExpiryNotifyDays");
+            if (notifyDays == null || !Array.isArray(notifyDays)) {
+                // Reset Default
+                await setSetting("tlsExpiryNotifyDays", [ 7, 14, 21 ], "general");
+                notifyDays = [ 7, 14, 21 ];
+            }
+
+            if (Array.isArray(notifyDays)) {
+                for (const targetDays of notifyDays) {
+                    let certInfo = tlsInfoObject.certInfo;
+                    while (certInfo) {
+                        let subjectCN = certInfo.subject["CN"];
+                        if (rootCertificates.has(certInfo.fingerprint256)) {
+                            log.debug("monitor", `Known root cert: ${certInfo.certType} certificate "${subjectCN}" (${certInfo.daysRemaining} days valid) on ${targetDays} deadline.`);
+                            break;
+                        } else if (certInfo.daysRemaining > targetDays) {
+                            log.debug("monitor", `No need to send cert notification for ${certInfo.certType} certificate "${subjectCN}" (${certInfo.daysRemaining} days valid) on ${targetDays} deadline.`);
+                        } else {
+                            log.debug("monitor", `call sendCertNotificationByTargetDays for ${targetDays} deadline on certificate ${subjectCN}.`);
+                            await this.sendCertNotificationByTargetDays(subjectCN, certInfo.certType, certInfo.daysRemaining, targetDays, notificationList);
+                        }
+                        certInfo = certInfo.issuerCertificate;
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Send a certificate notification when certificate expires in less
+     * than target days
+     * @param {string} certCN  Common Name attribute from the certificate subject
+     * @param {string} certType  certificate type
+     * @param {number} daysRemaining Number of days remaining on certificate
+     * @param {number} targetDays Number of days to alert after
+     * @param {LooseObject<any>[]} notificationList List of notification providers
+     * @returns {Promise<void>}
+     */
+    async sendCertNotificationByTargetDays(certCN, certType, daysRemaining, targetDays, notificationList) {
+
+        let row = await R.getRow("SELECT * FROM notification_sent_history WHERE type = ? AND monitor_id = ? AND days <= ?", [
+            "certificate",
+            this.id,
+            targetDays,
+        ]);
+
+        // Sent already, no need to send again
+        if (row) {
+            log.debug("monitor", "Sent already, no need to send again");
+            return;
+        }
+
+        let sent = false;
+        log.debug("monitor", "Send certificate notification");
+
+        for (let notification of notificationList) {
+            try {
+                log.debug("monitor", "Sending to " + notification.name);
+                await Notification.send(JSON.parse(notification.config), `[${this.name}][${this.url}] ${certType} certificate ${certCN} will be expired in ${daysRemaining} days`);
+                sent = true;
+            } catch (e) {
+                log.error("monitor", "Cannot send cert notification to " + notification.name);
+                log.error("monitor", e);
+            }
+        }
+
+        if (sent) {
+            await R.exec("INSERT INTO notification_sent_history (type, monitor_id, days) VALUES(?, ?, ?)", [
+                "certificate",
+                this.id,
+                targetDays,
+            ]);
+        }
+    }
+
+    /**
+     * Get the status of the previous heartbeat
+     * @param {number} monitorID ID of monitor to check
+     * @returns {Promise<LooseObject<any>>} Previous heartbeat
+     */
+    static async getPreviousHeartbeat(monitorID) {
+        return await R.findOne("heartbeat", " id = (select MAX(id) from heartbeat where monitor_id = ?)", [
+            monitorID
+        ]);
+    }
+
+    /**
+     * Check if monitor is under maintenance
+     * @param {number} monitorID ID of monitor to check
+     * @returns {Promise<boolean>} Is the monitor under maintenance
+     */
+    static async isUnderMaintenance(monitorID) {
+        const maintenanceIDList = await R.getCol(`
+            SELECT maintenance_id FROM monitor_maintenance
+            WHERE monitor_id = ?
+        `, [ monitorID ]);
+
+        for (const maintenanceID of maintenanceIDList) {
+            const maintenance = await UptimeKumaServer.getInstance().getMaintenance(maintenanceID);
+            if (maintenance && await maintenance.isUnderMaintenance()) {
+                return true;
+            }
+        }
+
+        const parent = await Monitor.getParent(monitorID);
+        if (parent != null) {
+            return await Monitor.isUnderMaintenance(parent.id);
+        }
+
+        return false;
+    }
+
+    /**
+     * Make sure monitor interval is between bounds
+     * @returns {void}
+     * @throws Interval is outside of range
+     */
+    validate() {
+        if (this.interval > MAX_INTERVAL_SECOND) {
+            throw new Error(`Interval cannot be more than ${MAX_INTERVAL_SECOND} seconds`);
+        }
+        if (this.interval < MIN_INTERVAL_SECOND) {
+            throw new Error(`Interval cannot be less than ${MIN_INTERVAL_SECOND} seconds`);
+        }
+    }
+
+    /**
+     * Gets monitor notification of multiple monitor
+     * @param {Array} monitorIDs IDs of monitor to get
+     * @returns {Promise<LooseObject<any>>} object
+     */
+    static async getMonitorNotification(monitorIDs) {
+        return await R.getAll(`
+            SELECT monitor_notification.monitor_id, monitor_notification.notification_id
+            FROM monitor_notification
+            WHERE monitor_notification.monitor_id IN (${monitorIDs.map((_) => "?").join(",")})
+        `, monitorIDs);
+    }
+
+    /**
+     * Gets monitor tags of multiple monitor
+     * @param {Array} monitorIDs IDs of monitor to get
+     * @returns {Promise<LooseObject<any>>} object
+     */
+    static async getMonitorTag(monitorIDs) {
+        return await R.getAll(`
+            SELECT monitor_tag.monitor_id, monitor_tag.tag_id, tag.name, tag.color
+            FROM monitor_tag
+            JOIN tag ON monitor_tag.tag_id = tag.id
+            WHERE monitor_tag.monitor_id IN (${monitorIDs.map((_) => "?").join(",")})
+        `, monitorIDs);
+    }
+
+    /**
+     * prepare preloaded data for efficient access
+     * @param {Array} monitorData IDs & active field of monitor to get
+     * @returns {Promise<LooseObject<any>>} object
+     */
+    static async preparePreloadData(monitorData) {
+
+        const notificationsMap = new Map();
+        const tagsMap = new Map();
+        const maintenanceStatusMap = new Map();
+        const childrenIDsMap = new Map();
+        const activeStatusMap = new Map();
+        const forceInactiveMap = new Map();
+        const pathsMap = new Map();
+
+        if (monitorData.length > 0) {
+            const monitorIDs = monitorData.map(monitor => monitor.id);
+            const notifications = await Monitor.getMonitorNotification(monitorIDs);
+            const tags = await Monitor.getMonitorTag(monitorIDs);
+            const maintenanceStatuses = await Promise.all(monitorData.map(monitor => Monitor.isUnderMaintenance(monitor.id)));
+            const childrenIDs = await Promise.all(monitorData.map(monitor => Monitor.getAllChildrenIDs(monitor.id)));
+            const activeStatuses = await Promise.all(monitorData.map(monitor => Monitor.isActive(monitor.id, monitor.active)));
+            const forceInactiveStatuses = await Promise.all(monitorData.map(monitor => Monitor.isParentActive(monitor.id)));
+            const paths = await Promise.all(monitorData.map(monitor => Monitor.getAllPath(monitor.id, monitor.name)));
+
+            notifications.forEach(row => {
+                if (!notificationsMap.has(row.monitor_id)) {
+                    notificationsMap.set(row.monitor_id, {});
+                }
+                notificationsMap.get(row.monitor_id)[row.notification_id] = true;
+            });
+
+            tags.forEach(row => {
+                if (!tagsMap.has(row.monitor_id)) {
+                    tagsMap.set(row.monitor_id, []);
+                }
+                tagsMap.get(row.monitor_id).push({
+                    tag_id: row.tag_id,
+                    name: row.name,
+                    color: row.color
+                });
+            });
+
+            monitorData.forEach((monitor, index) => {
+                maintenanceStatusMap.set(monitor.id, maintenanceStatuses[index]);
+            });
+
+            monitorData.forEach((monitor, index) => {
+                childrenIDsMap.set(monitor.id, childrenIDs[index]);
+            });
+
+            monitorData.forEach((monitor, index) => {
+                activeStatusMap.set(monitor.id, activeStatuses[index]);
+            });
+
+            monitorData.forEach((monitor, index) => {
+                forceInactiveMap.set(monitor.id, !forceInactiveStatuses[index]);
+            });
+
+            monitorData.forEach((monitor, index) => {
+                pathsMap.set(monitor.id, paths[index]);
+            });
+        }
+
+        return {
+            notifications: notificationsMap,
+            tags: tagsMap,
+            maintenanceStatus: maintenanceStatusMap,
+            childrenIDs: childrenIDsMap,
+            activeStatus: activeStatusMap,
+            forceInactive: forceInactiveMap,
+            paths: pathsMap,
+        };
+    }
+
+    /**
+     * Gets Parent of the monitor
+     * @param {number} monitorID ID of monitor to get
+     * @returns {Promise<LooseObject<any>>} Parent
+     */
+    static async getParent(monitorID) {
+        return await R.getRow(`
+            SELECT parent.* FROM monitor parent
+    		LEFT JOIN monitor child
+    			ON child.parent = parent.id
+            WHERE child.id = ?
+        `, [
+            monitorID,
+        ]);
+    }
+
+    /**
+     * Gets all Children of the monitor
+     * @param {number} monitorID ID of monitor to get
+     * @returns {Promise<LooseObject<any>>} Children
+     */
+    static async getChildren(monitorID) {
+        return await R.getAll(`
+            SELECT * FROM monitor
+            WHERE parent = ?
+        `, [
+            monitorID,
+        ]);
+    }
+
+    /**
+     * Gets the full path
+     * @param {number} monitorID ID of the monitor to get
+     * @param {string} name of the monitor to get
+     * @returns {Promise<string[]>} Full path (includes groups and the name) of the monitor
+     */
+    static async getAllPath(monitorID, name) {
+        const path = [ name ];
+
+        if (this.parent === null) {
+            return path;
+        }
+
+        let parent = await Monitor.getParent(monitorID);
+        while (parent !== null) {
+            path.unshift(parent.name);
+            parent = await Monitor.getParent(parent.id);
+        }
+
+        return path;
+    }
+
+    /**
+     * Gets recursive all child ids
+     * @param {number} monitorID ID of the monitor to get
+     * @returns {Promise<Array>} IDs of all children
+     */
+    static async getAllChildrenIDs(monitorID) {
+        const childs = await Monitor.getChildren(monitorID);
+
+        if (childs === null) {
+            return [];
+        }
+
+        let childrenIDs = [];
+
+        for (const child of childs) {
+            childrenIDs.push(child.id);
+            childrenIDs = childrenIDs.concat(await Monitor.getAllChildrenIDs(child.id));
+        }
+
+        return childrenIDs;
+    }
+
+    /**
+     * Unlinks all children of the group monitor
+     * @param {number} groupID ID of group to remove children of
+     * @returns {Promise<void>}
+     */
+    static async unlinkAllChildren(groupID) {
+        return await R.exec("UPDATE `monitor` SET parent = ? WHERE parent = ? ", [
+            null, groupID
+        ]);
+    }
+
+    /**
+     * Checks recursive if parent (ancestors) are active
+     * @param {number} monitorID ID of the monitor to get
+     * @returns {Promise<boolean>} Is the parent monitor active?
+     */
+    static async isParentActive(monitorID) {
+        const parent = await Monitor.getParent(monitorID);
+
+        if (parent === null) {
+            return true;
+        }
+
+        const parentActive = await Monitor.isParentActive(parent.id);
+        return parent.active && parentActive;
+    }
+
+    /**
+     * Obtains a new Oidc Token
+     * @returns {Promise<object>} OAuthProvider client
+     */
+    async makeOidcTokenClientCredentialsRequest() {
+        log.debug("monitor", `[${this.name}] The oauth access-token undefined or expired. Requesting a new token`);
+        const oAuthAccessToken = await getOidcTokenClientCredentials(this.oauth_token_url, this.oauth_client_id, this.oauth_client_secret, this.oauth_scopes, this.oauth_auth_method);
+        if (this.oauthAccessToken?.expires_at) {
+            log.debug("monitor", `[${this.name}] Obtained oauth access-token. Expires at ${new Date(this.oauthAccessToken?.expires_at * 1000)}`);
+        } else {
+            log.debug("monitor", `[${this.name}] Obtained oauth access-token. Time until expiry was not provided`);
+        }
+
+        return oAuthAccessToken;
+    }
+
+    /**
+     * Store TLS certificate information and check for expiry
+     * @param {object} tlsInfo Information about the TLS connection
+     * @returns {Promise<void>}
+     */
+    async handleTlsInfo(tlsInfo) {
+        await this.updateTlsInfo(tlsInfo);
+        this.prometheus?.update(null, tlsInfo);
+
+        if (!this.getIgnoreTls() && this.isEnabledExpiryNotification()) {
+            log.debug("monitor", `[${this.name}] call checkCertExpiryNotifications`);
+            await this.checkCertExpiryNotifications(tlsInfo);
+        }
+    }
+}
+
+module.exports = Monitor;
diff --git a/server/model/proxy.js b/server/model/proxy.js
new file mode 100644
index 0000000..ec78403
--- /dev/null
+++ b/server/model/proxy.js
@@ -0,0 +1,25 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+
+class Proxy extends BeanModel {
+    /**
+     * Return an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON() {
+        return {
+            id: this._id,
+            userId: this._user_id,
+            protocol: this._protocol,
+            host: this._host,
+            port: this._port,
+            auth: !!this._auth,
+            username: this._username,
+            password: this._password,
+            active: !!this._active,
+            default: !!this._default,
+            createdDate: this._created_date,
+        };
+    }
+}
+
+module.exports = Proxy;
diff --git a/server/model/remote_browser.js b/server/model/remote_browser.js
new file mode 100644
index 0000000..49299ad
--- /dev/null
+++ b/server/model/remote_browser.js
@@ -0,0 +1,17 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+
+class RemoteBrowser extends BeanModel {
+    /**
+     * Returns an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON() {
+        return {
+            id: this.id,
+            url: this.url,
+            name: this.name,
+        };
+    }
+}
+
+module.exports = RemoteBrowser;
diff --git a/server/model/status_page.js b/server/model/status_page.js
new file mode 100644
index 0000000..38f548e
--- /dev/null
+++ b/server/model/status_page.js
@@ -0,0 +1,491 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+const { R } = require("redbean-node");
+const cheerio = require("cheerio");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const jsesc = require("jsesc");
+const googleAnalytics = require("../google-analytics");
+const { marked } = require("marked");
+const { Feed } = require("feed");
+const config = require("../config");
+
+const { STATUS_PAGE_ALL_DOWN, STATUS_PAGE_ALL_UP, STATUS_PAGE_MAINTENANCE, STATUS_PAGE_PARTIAL_DOWN, UP, MAINTENANCE, DOWN } = require("../../src/util");
+
+class StatusPage extends BeanModel {
+
+    /**
+     * Like this: { "test-uptime.kuma.pet": "default" }
+     * @type {{}}
+     */
+    static domainMappingList = { };
+
+    /**
+     * Handle responses to RSS pages
+     * @param {Response} response Response object
+     * @param {string} slug Status page slug
+     * @returns {Promise<void>}
+     */
+    static async handleStatusPageRSSResponse(response, slug) {
+        let statusPage = await R.findOne("status_page", " slug = ? ", [
+            slug
+        ]);
+
+        if (statusPage) {
+            response.send(await StatusPage.renderRSS(statusPage, slug));
+        } else {
+            response.status(404).send(UptimeKumaServer.getInstance().indexHTML);
+        }
+    }
+
+    /**
+     * Handle responses to status page
+     * @param {Response} response Response object
+     * @param {string} indexHTML HTML to render
+     * @param {string} slug Status page slug
+     * @returns {Promise<void>}
+     */
+    static async handleStatusPageResponse(response, indexHTML, slug) {
+        // Handle url with trailing slash (http://localhost:3001/status/)
+        // The slug comes from the route "/status/:slug". If the slug is empty, express converts it to "index.html"
+        if (slug === "index.html") {
+            slug = "default";
+        }
+
+        let statusPage = await R.findOne("status_page", " slug = ? ", [
+            slug
+        ]);
+
+        if (statusPage) {
+            response.send(await StatusPage.renderHTML(indexHTML, statusPage));
+        } else {
+            response.status(404).send(UptimeKumaServer.getInstance().indexHTML);
+        }
+    }
+
+    /**
+     * SSR for RSS feed
+     * @param {statusPage} statusPage object
+     * @param {slug} slug from router
+     * @returns {Promise<string>} the rendered html
+     */
+    static async renderRSS(statusPage, slug) {
+        const { heartbeats, statusDescription } = await StatusPage.getRSSPageData(statusPage);
+
+        let proto = config.isSSL ? "https" : "http";
+        let host = `${proto}://${config.hostname || "localhost"}:${config.port}/status/${slug}`;
+
+        const feed = new Feed({
+            title: "uptime kuma rss feed",
+            description: `current status: ${statusDescription}`,
+            link: host,
+            language: "en", // optional, used only in RSS 2.0, possible values: http://www.w3.org/TR/REC-html40/struct/dirlang.html#langcodes
+            updated: new Date(), // optional, default = today
+        });
+
+        heartbeats.forEach(heartbeat => {
+            feed.addItem({
+                title: `${heartbeat.name} is down`,
+                description: `${heartbeat.name} has been down since ${heartbeat.time}`,
+                id: heartbeat.monitorID,
+                date: new Date(heartbeat.time),
+            });
+        });
+
+        return feed.rss2();
+    }
+
+    /**
+     * SSR for status pages
+     * @param {string} indexHTML HTML page to render
+     * @param {StatusPage} statusPage Status page populate HTML with
+     * @returns {Promise<string>} the rendered html
+     */
+    static async renderHTML(indexHTML, statusPage) {
+        const $ = cheerio.load(indexHTML);
+
+        const description155 = marked(statusPage.description ?? "")
+            .replace(/<[^>]+>/gm, "")
+            .trim()
+            .substring(0, 155);
+
+        $("title").text(statusPage.title);
+        $("meta[name=description]").attr("content", description155);
+
+        if (statusPage.icon) {
+            $("link[rel=icon]")
+                .attr("href", statusPage.icon)
+                .removeAttr("type");
+
+            $("link[rel=apple-touch-icon]").remove();
+        }
+
+        const head = $("head");
+
+        if (statusPage.googleAnalyticsTagId) {
+            let escapedGoogleAnalyticsScript = googleAnalytics.getGoogleAnalyticsScript(statusPage.googleAnalyticsTagId);
+            head.append($(escapedGoogleAnalyticsScript));
+        }
+
+        // OG Meta Tags
+        let ogTitle = $("<meta property=\"og:title\" content=\"\" />").attr("content", statusPage.title);
+        head.append(ogTitle);
+
+        let ogDescription = $("<meta property=\"og:description\" content=\"\" />").attr("content", description155);
+        head.append(ogDescription);
+
+        // Preload data
+        // Add jsesc, fix https://github.com/louislam/uptime-kuma/issues/2186
+        const escapedJSONObject = jsesc(await StatusPage.getStatusPageData(statusPage), {
+            "isScriptContext": true
+        });
+
+        const script = $(`
+            <script id="preload-data" data-json="{}">
+                window.preloadData = ${escapedJSONObject};
+            </script>
+        `);
+
+        head.append(script);
+
+        // manifest.json
+        $("link[rel=manifest]").attr("href", `/api/status-page/${statusPage.slug}/manifest.json`);
+
+        return $.root().html();
+    }
+
+    /**
+     * @param {heartbeats} heartbeats from getRSSPageData
+     * @returns {number} status_page constant from util.ts
+     */
+    static overallStatus(heartbeats) {
+        if (heartbeats.length === 0) {
+            return -1;
+        }
+
+        let status = STATUS_PAGE_ALL_UP;
+        let hasUp = false;
+
+        for (let beat of heartbeats) {
+            if (beat.status === MAINTENANCE) {
+                return STATUS_PAGE_MAINTENANCE;
+            } else if (beat.status === UP) {
+                hasUp = true;
+            } else {
+                status = STATUS_PAGE_PARTIAL_DOWN;
+            }
+        }
+
+        if (! hasUp) {
+            status = STATUS_PAGE_ALL_DOWN;
+        }
+
+        return status;
+    }
+
+    /**
+     * @param {number} status from overallStatus
+     * @returns {string} description
+     */
+    static getStatusDescription(status) {
+        if (status === -1) {
+            return "No Services";
+        }
+
+        if (status === STATUS_PAGE_ALL_UP) {
+            return "All Systems Operational";
+        }
+
+        if (status === STATUS_PAGE_PARTIAL_DOWN) {
+            return "Partially Degraded Service";
+        }
+
+        if (status === STATUS_PAGE_ALL_DOWN) {
+            return "Degraded Service";
+        }
+
+        // TODO: show the real maintenance information: title, description, time
+        if (status === MAINTENANCE) {
+            return "Under maintenance";
+        }
+
+        return "?";
+    }
+
+    /**
+     * Get all data required for RSS
+     * @param {StatusPage} statusPage Status page to get data for
+     * @returns {object} Status page data
+     */
+    static async getRSSPageData(statusPage) {
+        // get all heartbeats that correspond to this statusPage
+        const config = await statusPage.toPublicJSON();
+
+        // Public Group List
+        const showTags = !!statusPage.show_tags;
+
+        const list = await R.find("group", " public = 1 AND status_page_id = ? ORDER BY weight ", [
+            statusPage.id
+        ]);
+
+        let heartbeats = [];
+
+        for (let groupBean of list) {
+            let monitorGroup = await groupBean.toPublicJSON(showTags, config?.showCertificateExpiry);
+            for (const monitor of monitorGroup.monitorList) {
+                const heartbeat = await R.findOne("heartbeat", "monitor_id = ? ORDER BY time DESC", [ monitor.id ]);
+                if (heartbeat) {
+                    heartbeats.push({
+                        ...monitor,
+                        status: heartbeat.status,
+                        time: heartbeat.time
+                    });
+                }
+            }
+        }
+
+        // calculate RSS feed description
+        let status = StatusPage.overallStatus(heartbeats);
+        let statusDescription = StatusPage.getStatusDescription(status);
+
+        // keep only DOWN heartbeats in the RSS feed
+        heartbeats = heartbeats.filter(heartbeat => heartbeat.status === DOWN);
+
+        return {
+            heartbeats,
+            statusDescription
+        };
+    }
+
+    /**
+     * Get all status page data in one call
+     * @param {StatusPage} statusPage Status page to get data for
+     * @returns {object} Status page data
+     */
+    static async getStatusPageData(statusPage) {
+        const config = await statusPage.toPublicJSON();
+
+        // Incident
+        let incident = await R.findOne("incident", " pin = 1 AND active = 1 AND status_page_id = ? ", [
+            statusPage.id,
+        ]);
+
+        if (incident) {
+            incident = incident.toPublicJSON();
+        }
+
+        let maintenanceList = await StatusPage.getMaintenanceList(statusPage.id);
+
+        // Public Group List
+        const publicGroupList = [];
+        const showTags = !!statusPage.show_tags;
+
+        const list = await R.find("group", " public = 1 AND status_page_id = ? ORDER BY weight ", [
+            statusPage.id
+        ]);
+
+        for (let groupBean of list) {
+            let monitorGroup = await groupBean.toPublicJSON(showTags, config?.showCertificateExpiry);
+            publicGroupList.push(monitorGroup);
+        }
+
+        // Response
+        return {
+            config,
+            incident,
+            publicGroupList,
+            maintenanceList,
+        };
+    }
+
+    /**
+     * Loads domain mapping from DB
+     * Return object like this: { "test-uptime.kuma.pet": "default" }
+     * @returns {Promise<void>}
+     */
+    static async loadDomainMappingList() {
+        StatusPage.domainMappingList = await R.getAssoc(`
+            SELECT domain, slug
+            FROM status_page, status_page_cname
+            WHERE status_page.id = status_page_cname.status_page_id
+        `);
+    }
+
+    /**
+     * Send status page list to client
+     * @param {Server} io io Socket server instance
+     * @param {Socket} socket Socket.io instance
+     * @returns {Promise<Bean[]>} Status page list
+     */
+    static async sendStatusPageList(io, socket) {
+        let result = {};
+
+        let list = await R.findAll("status_page", " ORDER BY title ");
+
+        for (let item of list) {
+            result[item.id] = await item.toJSON();
+        }
+
+        io.to(socket.userID).emit("statusPageList", result);
+        return list;
+    }
+
+    /**
+     * Update list of domain names
+     * @param {string[]} domainNameList List of status page domains
+     * @returns {Promise<void>}
+     */
+    async updateDomainNameList(domainNameList) {
+
+        if (!Array.isArray(domainNameList)) {
+            throw new Error("Invalid array");
+        }
+
+        let trx = await R.begin();
+
+        await trx.exec("DELETE FROM status_page_cname WHERE status_page_id = ?", [
+            this.id,
+        ]);
+
+        try {
+            for (let domain of domainNameList) {
+                if (typeof domain !== "string") {
+                    throw new Error("Invalid domain");
+                }
+
+                if (domain.trim() === "") {
+                    continue;
+                }
+
+                // If the domain name is used in another status page, delete it
+                await trx.exec("DELETE FROM status_page_cname WHERE domain = ?", [
+                    domain,
+                ]);
+
+                let mapping = trx.dispense("status_page_cname");
+                mapping.status_page_id = this.id;
+                mapping.domain = domain;
+                await trx.store(mapping);
+            }
+            await trx.commit();
+        } catch (error) {
+            await trx.rollback();
+            throw error;
+        }
+    }
+
+    /**
+     * Get list of domain names
+     * @returns {object[]} List of status page domains
+     */
+    getDomainNameList() {
+        let domainList = [];
+        for (let domain in StatusPage.domainMappingList) {
+            let s = StatusPage.domainMappingList[domain];
+
+            if (this.slug === s) {
+                domainList.push(domain);
+            }
+        }
+        return domainList;
+    }
+
+    /**
+     * Return an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    async toJSON() {
+        return {
+            id: this.id,
+            slug: this.slug,
+            title: this.title,
+            description: this.description,
+            icon: this.getIcon(),
+            theme: this.theme,
+            autoRefreshInterval: this.autoRefreshInterval,
+            published: !!this.published,
+            showTags: !!this.show_tags,
+            domainNameList: this.getDomainNameList(),
+            customCSS: this.custom_css,
+            footerText: this.footer_text,
+            showPoweredBy: !!this.show_powered_by,
+            googleAnalyticsId: this.google_analytics_tag_id,
+            showCertificateExpiry: !!this.show_certificate_expiry,
+        };
+    }
+
+    /**
+     * Return an object that ready to parse to JSON for public
+     * Only show necessary data to public
+     * @returns {object} Object ready to parse
+     */
+    async toPublicJSON() {
+        return {
+            slug: this.slug,
+            title: this.title,
+            description: this.description,
+            icon: this.getIcon(),
+            autoRefreshInterval: this.autoRefreshInterval,
+            theme: this.theme,
+            published: !!this.published,
+            showTags: !!this.show_tags,
+            customCSS: this.custom_css,
+            footerText: this.footer_text,
+            showPoweredBy: !!this.show_powered_by,
+            googleAnalyticsId: this.google_analytics_tag_id,
+            showCertificateExpiry: !!this.show_certificate_expiry,
+        };
+    }
+
+    /**
+     * Convert slug to status page ID
+     * @param {string} slug Status page slug
+     * @returns {Promise<number>} ID of status page
+     */
+    static async slugToID(slug) {
+        return await R.getCell("SELECT id FROM status_page WHERE slug = ? ", [
+            slug
+        ]);
+    }
+
+    /**
+     * Get path to the icon for the page
+     * @returns {string} Path
+     */
+    getIcon() {
+        if (!this.icon) {
+            return "/icon.svg";
+        } else {
+            return this.icon;
+        }
+    }
+
+    /**
+     * Get list of maintenances
+     * @param {number} statusPageId ID of status page to get maintenance for
+     * @returns {object} Object representing maintenances sanitized for public
+     */
+    static async getMaintenanceList(statusPageId) {
+        try {
+            const publicMaintenanceList = [];
+
+            let maintenanceIDList = await R.getCol(`
+                SELECT DISTINCT maintenance_id
+                FROM maintenance_status_page
+                WHERE status_page_id = ?
+            `, [ statusPageId ]);
+
+            for (const maintenanceID of maintenanceIDList) {
+                let maintenance = UptimeKumaServer.getInstance().getMaintenance(maintenanceID);
+                if (maintenance && await maintenance.isUnderMaintenance()) {
+                    publicMaintenanceList.push(await maintenance.toPublicJSON());
+                }
+            }
+
+            return publicMaintenanceList;
+
+        } catch (error) {
+            return [];
+        }
+    }
+}
+
+module.exports = StatusPage;
diff --git a/server/model/tag.js b/server/model/tag.js
new file mode 100644
index 0000000..bc8a4db
--- /dev/null
+++ b/server/model/tag.js
@@ -0,0 +1,18 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+
+class Tag extends BeanModel {
+
+    /**
+     * Return an object that ready to parse to JSON
+     * @returns {object} Object ready to parse
+     */
+    toJSON() {
+        return {
+            id: this._id,
+            name: this._name,
+            color: this._color,
+        };
+    }
+}
+
+module.exports = Tag;
diff --git a/server/model/user.js b/server/model/user.js
new file mode 100644
index 0000000..329402f
--- /dev/null
+++ b/server/model/user.js
@@ -0,0 +1,53 @@
+const { BeanModel } = require("redbean-node/dist/bean-model");
+const passwordHash = require("../password-hash");
+const { R } = require("redbean-node");
+const jwt = require("jsonwebtoken");
+const { shake256, SHAKE256_LENGTH } = require("../util-server");
+
+class User extends BeanModel {
+    /**
+     * Reset user password
+     * Fix #1510, as in the context reset-password.js, there is no auto model mapping. Call this static function instead.
+     * @param {number} userID ID of user to update
+     * @param {string} newPassword Users new password
+     * @returns {Promise<void>}
+     */
+    static async resetPassword(userID, newPassword) {
+        await R.exec("UPDATE `user` SET password = ? WHERE id = ? ", [
+            passwordHash.generate(newPassword),
+            userID
+        ]);
+    }
+
+    /**
+     * Reset this users password
+     * @param {string} newPassword Users new password
+     * @returns {Promise<void>}
+     */
+    async resetPassword(newPassword) {
+        const hashedPassword = passwordHash.generate(newPassword);
+
+        await R.exec("UPDATE `user` SET password = ? WHERE id = ? ", [
+            hashedPassword,
+            this.id
+        ]);
+
+        this.password = hashedPassword;
+    }
+
+    /**
+     * Create a new JWT for a user
+     * @param {User} user The User to create a JsonWebToken for
+     * @param {string} jwtSecret The key used to sign the JsonWebToken
+     * @returns {string} the JsonWebToken as a string
+     */
+    static createJWT(user, jwtSecret) {
+        return jwt.sign({
+            username: user.username,
+            h: shake256(user.password, SHAKE256_LENGTH),
+        }, jwtSecret);
+    }
+
+}
+
+module.exports = User;
diff --git a/server/modules/apicache/apicache.js b/server/modules/apicache/apicache.js
new file mode 100644
index 0000000..41930b2
--- /dev/null
+++ b/server/modules/apicache/apicache.js
@@ -0,0 +1,917 @@
+let url = require("url");
+let MemoryCache = require("./memory-cache");
+
+let t = {
+    ms: 1,
+    second: 1000,
+    minute: 60000,
+    hour: 3600000,
+    day: 3600000 * 24,
+    week: 3600000 * 24 * 7,
+    month: 3600000 * 24 * 30,
+};
+
+let instances = [];
+
+/**
+ * Does a === b
+ * @param {any} a
+ * @returns {function(any): boolean}
+ */
+let matches = function (a) {
+    return function (b) {
+        return a === b;
+    };
+};
+
+/**
+ * Does a!==b
+ * @param {any} a
+ * @returns {function(any): boolean}
+ */
+let doesntMatch = function (a) {
+    return function (b) {
+        return !matches(a)(b);
+    };
+};
+
+/**
+ * Get log duration
+ * @param {number} d Time in ms
+ * @param {string} prefix Prefix for log
+ * @returns {string} Coloured log string
+ */
+let logDuration = function (d, prefix) {
+    let str = d > 1000 ? (d / 1000).toFixed(2) + "sec" : d + "ms";
+    return "\x1b[33m- " + (prefix ? prefix + " " : "") + str + "\x1b[0m";
+};
+
+/**
+ * Get safe headers
+ * @param {Object} res Express response object
+ * @returns {Object}
+ */
+function getSafeHeaders(res) {
+    return res.getHeaders ? res.getHeaders() : res._headers;
+}
+
+/** Constructor for ApiCache instance */
+function ApiCache() {
+    let memCache = new MemoryCache();
+
+    let globalOptions = {
+        debug: false,
+        defaultDuration: 3600000,
+        enabled: true,
+        appendKey: [],
+        jsonp: false,
+        redisClient: false,
+        headerBlacklist: [],
+        statusCodes: {
+            include: [],
+            exclude: [],
+        },
+        events: {
+            expire: undefined,
+        },
+        headers: {
+            // 'cache-control':  'no-cache' // example of header overwrite
+        },
+        trackPerformance: false,
+        respectCacheControl: false,
+    };
+
+    let middlewareOptions = [];
+    let instance = this;
+    let index = null;
+    let timers = {};
+    let performanceArray = []; // for tracking cache hit rate
+
+    instances.push(this);
+    this.id = instances.length;
+
+    /**
+     * Logs a message to the console if the `DEBUG` environment variable is set.
+     * @param {string} a The first argument to log.
+     * @param {string} b The second argument to log.
+     * @param {string} c The third argument to log.
+     * @param {string} d The fourth argument to log, and so on... (optional)
+     *
+     * Generated by Trelent
+     */
+    function debug(a, b, c, d) {
+        let arr = ["\x1b[36m[apicache]\x1b[0m", a, b, c, d].filter(function (arg) {
+            return arg !== undefined;
+        });
+        let debugEnv = process.env.DEBUG && process.env.DEBUG.split(",").indexOf("apicache") !== -1;
+
+        return (globalOptions.debug || debugEnv) && console.log.apply(null, arr);
+    }
+
+    /**
+     * Returns true if the given request and response should be logged.
+     * @param {Object} request The HTTP request object.
+     * @param {Object} response The HTTP response object.
+     * @param {function(Object, Object):boolean} toggle
+     * @returns {boolean}
+     */
+    function shouldCacheResponse(request, response, toggle) {
+        let opt = globalOptions;
+        let codes = opt.statusCodes;
+
+        if (!response) {
+            return false;
+        }
+
+        if (toggle && !toggle(request, response)) {
+            return false;
+        }
+
+        if (codes.exclude && codes.exclude.length && codes.exclude.indexOf(response.statusCode) !== -1) {
+            return false;
+        }
+        if (codes.include && codes.include.length && codes.include.indexOf(response.statusCode) === -1) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Add key to index array
+     * @param {string} key Key to add
+     * @param {Object} req Express request object
+     */
+    function addIndexEntries(key, req) {
+        let groupName = req.apicacheGroup;
+
+        if (groupName) {
+            debug("group detected \"" + groupName + "\"");
+            let group = (index.groups[groupName] = index.groups[groupName] || []);
+            group.unshift(key);
+        }
+
+        index.all.unshift(key);
+    }
+
+    /**
+     * Returns a new object containing only the whitelisted headers.
+     * @param {Object} headers The original object of header names and
+     * values.
+     * @param {string[]} globalOptions.headerWhitelist An array of
+     * strings representing the whitelisted header names to keep in the
+     * output object.
+     *
+     * Generated by Trelent
+     */
+    function filterBlacklistedHeaders(headers) {
+        return Object.keys(headers)
+            .filter(function (key) {
+                return globalOptions.headerBlacklist.indexOf(key) === -1;
+            })
+            .reduce(function (acc, header) {
+                acc[header] = headers[header];
+                return acc;
+            }, {});
+    }
+
+    /**
+     * Create a cache object
+     * @param {Object} headers The response headers to filter.
+     * @returns {Object} A new object containing only the whitelisted
+     * response headers.
+     *
+     * Generated by Trelent
+     */
+    function createCacheObject(status, headers, data, encoding) {
+        return {
+            status: status,
+            headers: filterBlacklistedHeaders(headers),
+            data: data,
+            encoding: encoding,
+            timestamp: new Date().getTime() / 1000, // seconds since epoch.  This is used to properly decrement max-age headers in cached responses.
+        };
+    }
+
+    /**
+     * Sets a cache value for the given key.
+     * @param {string} key The cache key to set.
+     * @param {any} value The cache value to set.
+     * @param {number} duration How long in milliseconds the cached
+     * response should be valid for (defaults to 1 hour).
+     *
+     * Generated by Trelent
+     */
+    function cacheResponse(key, value, duration) {
+        let redis = globalOptions.redisClient;
+        let expireCallback = globalOptions.events.expire;
+
+        if (redis && redis.connected) {
+            try {
+                redis.hset(key, "response", JSON.stringify(value));
+                redis.hset(key, "duration", duration);
+                redis.expire(key, duration / 1000, expireCallback || function () {});
+            } catch (err) {
+                debug("[apicache] error in redis.hset()");
+            }
+        } else {
+            memCache.add(key, value, duration, expireCallback);
+        }
+
+        // add automatic cache clearing from duration, includes max limit on setTimeout
+        timers[key] = setTimeout(function () {
+            instance.clear(key, true);
+        }, Math.min(duration, 2147483647));
+    }
+
+    /**
+     * Appends content to the response.
+     * @param {Object} res Express response object
+     * @param {(string|Buffer)} content The content to append.
+     *
+     * Generated by Trelent
+     */
+    function accumulateContent(res, content) {
+        if (content) {
+            if (typeof content == "string") {
+                res._apicache.content = (res._apicache.content || "") + content;
+            } else if (Buffer.isBuffer(content)) {
+                let oldContent = res._apicache.content;
+
+                if (typeof oldContent === "string") {
+                    oldContent = !Buffer.from ? new Buffer(oldContent) : Buffer.from(oldContent);
+                }
+
+                if (!oldContent) {
+                    oldContent = !Buffer.alloc ? new Buffer(0) : Buffer.alloc(0);
+                }
+
+                res._apicache.content = Buffer.concat(
+                    [oldContent, content],
+                    oldContent.length + content.length
+                );
+            } else {
+                res._apicache.content = content;
+            }
+        }
+    }
+
+    /**
+     * Monkeypatches the response object to add cache control headers
+     * and create a cache object.
+     * @param {Object} req Express request object
+     * @param {Object} res Express response object
+     * @param {function} next Function to call next
+     * @param {string} key Key to add response as
+     * @param {number} duration Time to cache response for
+     * @param {string} strDuration Duration in string form
+     * @param {function(Object, Object):boolean} toggle
+     */
+    function makeResponseCacheable(req, res, next, key, duration, strDuration, toggle) {
+    // monkeypatch res.end to create cache object
+        res._apicache = {
+            write: res.write,
+            writeHead: res.writeHead,
+            end: res.end,
+            cacheable: true,
+            content: undefined,
+        };
+
+        // append header overwrites if applicable
+        Object.keys(globalOptions.headers).forEach(function (name) {
+            res.setHeader(name, globalOptions.headers[name]);
+        });
+
+        res.writeHead = function () {
+            // add cache control headers
+            if (!globalOptions.headers["cache-control"]) {
+                if (shouldCacheResponse(req, res, toggle)) {
+                    res.setHeader("cache-control", "max-age=" + (duration / 1000).toFixed(0));
+                } else {
+                    res.setHeader("cache-control", "no-cache, no-store, must-revalidate");
+                }
+            }
+
+            res._apicache.headers = Object.assign({}, getSafeHeaders(res));
+            return res._apicache.writeHead.apply(this, arguments);
+        };
+
+        // patch res.write
+        res.write = function (content) {
+            accumulateContent(res, content);
+            return res._apicache.write.apply(this, arguments);
+        };
+
+        // patch res.end
+        res.end = function (content, encoding) {
+            if (shouldCacheResponse(req, res, toggle)) {
+                accumulateContent(res, content);
+
+                if (res._apicache.cacheable && res._apicache.content) {
+                    addIndexEntries(key, req);
+                    let headers = res._apicache.headers || getSafeHeaders(res);
+                    let cacheObject = createCacheObject(
+                        res.statusCode,
+                        headers,
+                        res._apicache.content,
+                        encoding
+                    );
+                    cacheResponse(key, cacheObject, duration);
+
+                    // display log entry
+                    let elapsed = new Date() - req.apicacheTimer;
+                    debug("adding cache entry for \"" + key + "\" @ " + strDuration, logDuration(elapsed));
+                    debug("_apicache.headers: ", res._apicache.headers);
+                    debug("res.getHeaders(): ", getSafeHeaders(res));
+                    debug("cacheObject: ", cacheObject);
+                }
+            }
+
+            return res._apicache.end.apply(this, arguments);
+        };
+
+        next();
+    }
+
+    /**
+     * Send a cached response to client
+     * @param {Request} request Express request object
+     * @param {Response} response Express response object
+     * @param {object} cacheObject Cache object to send
+     * @param {function(Object, Object):boolean} toggle
+     * @param {function} next Function to call next
+     * @param {number} duration Not used
+     * @returns {boolean|undefined} true if the request should be
+     * cached, false otherwise. If undefined, defaults to true.
+     */
+    function sendCachedResponse(request, response, cacheObject, toggle, next, duration) {
+        if (toggle && !toggle(request, response)) {
+            return next();
+        }
+
+        let headers = getSafeHeaders(response);
+
+        // Modified by @louislam, removed Cache-control, since I don't need client side cache!
+        // Original Source: https://github.com/kwhitley/apicache/blob/0d5686cc21fad353c6dddee646288c2fca3e4f50/src/apicache.js#L254
+        Object.assign(headers, filterBlacklistedHeaders(cacheObject.headers || {}));
+
+        // only embed apicache headers when not in production environment
+        if (process.env.NODE_ENV !== "production") {
+            Object.assign(headers, {
+                "apicache-store": globalOptions.redisClient ? "redis" : "memory",
+                "apicache-version": "1.6.2-modified",
+            });
+        }
+
+        // unstringify buffers
+        let data = cacheObject.data;
+        if (data && data.type === "Buffer") {
+            data =
+        typeof data.data === "number" ? new Buffer.alloc(data.data) : new Buffer.from(data.data);
+        }
+
+        // test Etag against If-None-Match for 304
+        let cachedEtag = cacheObject.headers.etag;
+        let requestEtag = request.headers["if-none-match"];
+
+        if (requestEtag && cachedEtag === requestEtag) {
+            response.writeHead(304, headers);
+            return response.end();
+        }
+
+        response.writeHead(cacheObject.status || 200, headers);
+
+        return response.end(data, cacheObject.encoding);
+    }
+
+    /** Sync caching options */
+    function syncOptions() {
+        for (let i in middlewareOptions) {
+            Object.assign(middlewareOptions[i].options, globalOptions, middlewareOptions[i].localOptions);
+        }
+    }
+
+    /**
+     * Clear key from cache
+     * @param {string} target Key to clear
+     * @param {boolean} isAutomatic Is the key being cleared automatically
+     * @returns {number}
+     */
+    this.clear = function (target, isAutomatic) {
+        let group = index.groups[target];
+        let redis = globalOptions.redisClient;
+
+        if (group) {
+            debug("clearing group \"" + target + "\"");
+
+            group.forEach(function (key) {
+                debug("clearing cached entry for \"" + key + "\"");
+                clearTimeout(timers[key]);
+                delete timers[key];
+                if (!globalOptions.redisClient) {
+                    memCache.delete(key);
+                } else {
+                    try {
+                        redis.del(key);
+                    } catch (err) {
+                        console.log("[apicache] error in redis.del(\"" + key + "\")");
+                    }
+                }
+                index.all = index.all.filter(doesntMatch(key));
+            });
+
+            delete index.groups[target];
+        } else if (target) {
+            debug("clearing " + (isAutomatic ? "expired" : "cached") + " entry for \"" + target + "\"");
+            clearTimeout(timers[target]);
+            delete timers[target];
+            // clear actual cached entry
+            if (!redis) {
+                memCache.delete(target);
+            } else {
+                try {
+                    redis.del(target);
+                } catch (err) {
+                    console.log("[apicache] error in redis.del(\"" + target + "\")");
+                }
+            }
+
+            // remove from global index
+            index.all = index.all.filter(doesntMatch(target));
+
+            // remove target from each group that it may exist in
+            Object.keys(index.groups).forEach(function (groupName) {
+                index.groups[groupName] = index.groups[groupName].filter(doesntMatch(target));
+
+                // delete group if now empty
+                if (!index.groups[groupName].length) {
+                    delete index.groups[groupName];
+                }
+            });
+        } else {
+            debug("clearing entire index");
+
+            if (!redis) {
+                memCache.clear();
+            } else {
+                // clear redis keys one by one from internal index to prevent clearing non-apicache entries
+                index.all.forEach(function (key) {
+                    clearTimeout(timers[key]);
+                    delete timers[key];
+                    try {
+                        redis.del(key);
+                    } catch (err) {
+                        console.log("[apicache] error in redis.del(\"" + key + "\")");
+                    }
+                });
+            }
+            this.resetIndex();
+        }
+
+        return this.getIndex();
+    };
+
+    /**
+     * Converts a duration string to an integer number of milliseconds.
+     * @param {(string|number)} duration The string to convert.
+     * @param {number} defaultDuration The default duration to return if
+     * can't parse duration
+     * @returns {number} The converted value in milliseconds, or the
+     * defaultDuration if it can't be parsed.
+     */
+    function parseDuration(duration, defaultDuration) {
+        if (typeof duration === "number") {
+            return duration;
+        }
+
+        if (typeof duration === "string") {
+            let split = duration.match(/^([\d\.,]+)\s?(\w+)$/);
+
+            if (split.length === 3) {
+                let len = parseFloat(split[1]);
+                let unit = split[2].replace(/s$/i, "").toLowerCase();
+                if (unit === "m") {
+                    unit = "ms";
+                }
+
+                return (len || 1) * (t[unit] || 0);
+            }
+        }
+
+        return defaultDuration;
+    }
+
+    /**
+     * Parse duration
+     * @param {(number|string)} duration
+     * @returns {number} Duration parsed to a number
+     */
+    this.getDuration = function (duration) {
+        return parseDuration(duration, globalOptions.defaultDuration);
+    };
+
+    /**
+   * Return cache performance statistics (hit rate).  Suitable for
+   * putting into a route:
+   * <code>
+   * app.get('/api/cache/performance', (req, res) => {
+   *    res.json(apicache.getPerformance())
+   * })
+   * </code>
+   * @returns {any[]}
+   */
+    this.getPerformance = function () {
+        return performanceArray.map(function (p) {
+            return p.report();
+        });
+    };
+
+    /**
+     * Get index of a group
+     * @param {string} group 
+     * @returns {number}
+     */
+    this.getIndex = function (group) {
+        if (group) {
+            return index.groups[group];
+        } else {
+            return index;
+        }
+    };
+
+    /**
+     * Express middleware
+     * @param {(string|number)} strDuration Duration to cache responses
+     * for.
+     * @param {function(Object, Object):boolean} middlewareToggle 
+     * @param {Object} localOptions Options for APICache
+     * @returns 
+     */
+    this.middleware = function cache(strDuration, middlewareToggle, localOptions) {
+        let duration = instance.getDuration(strDuration);
+        let opt = {};
+
+        middlewareOptions.push({
+            options: opt,
+        });
+
+        let options = function (localOptions) {
+            if (localOptions) {
+                middlewareOptions.find(function (middleware) {
+                    return middleware.options === opt;
+                }).localOptions = localOptions;
+            }
+
+            syncOptions();
+
+            return opt;
+        };
+
+        options(localOptions);
+
+        /**
+         * A Function for non tracking performance
+         */
+        function NOOPCachePerformance() {
+            this.report = this.hit = this.miss = function () {}; // noop;
+        }
+
+        /**
+         * A function for tracking and reporting hit rate.  These
+         * statistics are returned by the getPerformance() call above.
+         */
+        function CachePerformance() {
+            /**
+             * Tracks the hit rate for the last 100 requests. If there
+             * have been fewer than 100 requests, the hit rate just
+             * considers the requests that have happened.
+             */
+            this.hitsLast100 = new Uint8Array(100 / 4); // each hit is 2 bits
+
+            /**
+             * Tracks the hit rate for the last 1000 requests. If there
+             * have been fewer than 1000 requests, the hit rate just
+             * considers the requests that have happened.
+             */
+            this.hitsLast1000 = new Uint8Array(1000 / 4); // each hit is 2 bits
+
+            /**
+             * Tracks the hit rate for the last 10000 requests. If there
+             * have been fewer than 10000 requests, the hit rate just
+             * considers the requests that have happened.
+             */
+            this.hitsLast10000 = new Uint8Array(10000 / 4); // each hit is 2 bits
+
+            /**
+             * Tracks the hit rate for the last 100000 requests. If
+             * there have been fewer than 100000 requests, the hit rate
+             * just considers the requests that have happened.
+             */
+            this.hitsLast100000 = new Uint8Array(100000 / 4); // each hit is 2 bits
+
+            /**
+             * The number of calls that have passed through the
+             * middleware since the server started.
+             */
+            this.callCount = 0;
+
+            /**
+             * The total number of hits since the server started
+             */
+            this.hitCount = 0;
+
+            /**
+             * The key from the last cache hit.  This is useful in
+             * identifying which route these statistics apply to.
+             */
+            this.lastCacheHit = null;
+
+            /**
+             * The key from the last cache miss.  This is useful in
+             * identifying which route these statistics apply to.
+             */
+            this.lastCacheMiss = null;
+
+            /**
+             * Return performance statistics
+             * @returns {Object}
+             */
+            this.report = function () {
+                return {
+                    lastCacheHit: this.lastCacheHit,
+                    lastCacheMiss: this.lastCacheMiss,
+                    callCount: this.callCount,
+                    hitCount: this.hitCount,
+                    missCount: this.callCount - this.hitCount,
+                    hitRate: this.callCount == 0 ? null : this.hitCount / this.callCount,
+                    hitRateLast100: this.hitRate(this.hitsLast100),
+                    hitRateLast1000: this.hitRate(this.hitsLast1000),
+                    hitRateLast10000: this.hitRate(this.hitsLast10000),
+                    hitRateLast100000: this.hitRate(this.hitsLast100000),
+                };
+            };
+
+            /**
+             * Computes a cache hit rate from an array of hits and
+             * misses.
+             * @param {Uint8Array} array An array representing hits and
+             * misses.
+             * @returns {?number} a number between 0 and 1, or null if
+             * the array has no hits or misses
+             */
+            this.hitRate = function (array) {
+                let hits = 0;
+                let misses = 0;
+                for (let i = 0; i < array.length; i++) {
+                    let n8 = array[i];
+                    for (let j = 0; j < 4; j++) {
+                        switch (n8 & 3) {
+                            case 1:
+                                hits++;
+                                break;
+                            case 2:
+                                misses++;
+                                break;
+                        }
+                        n8 >>= 2;
+                    }
+                }
+                let total = hits + misses;
+                if (total == 0) {
+                    return null;
+                }
+                return hits / total;
+            };
+
+            /**
+             * Record a hit or miss in the given array.  It will be
+             * recorded at a position determined by the current value of
+             * the callCount variable.
+             * @param {Uint8Array} array An array representing hits and
+             * misses.
+             * @param {boolean} hit true for a hit, false for a miss
+             * Each element in the array is 8 bits, and encodes 4
+             * hit/miss records. Each hit or miss is encoded as to bits
+             * as follows: 00 means no hit or miss has been recorded in
+             * these bits 01 encodes a hit 10 encodes a miss
+             */
+            this.recordHitInArray = function (array, hit) {
+                let arrayIndex = ~~(this.callCount / 4) % array.length;
+                let bitOffset = (this.callCount % 4) * 2; // 2 bits per record, 4 records per uint8 array element
+                let clearMask = ~(3 << bitOffset);
+                let record = (hit ? 1 : 2) << bitOffset;
+                array[arrayIndex] = (array[arrayIndex] & clearMask) | record;
+            };
+
+            /**
+             * Records the hit or miss in the tracking arrays and
+             * increments the call count.
+             * @param {boolean} hit true records a hit, false records a
+             * miss
+             */
+            this.recordHit = function (hit) {
+                this.recordHitInArray(this.hitsLast100, hit);
+                this.recordHitInArray(this.hitsLast1000, hit);
+                this.recordHitInArray(this.hitsLast10000, hit);
+                this.recordHitInArray(this.hitsLast100000, hit);
+                if (hit) {
+                    this.hitCount++;
+                }
+                this.callCount++;
+            };
+
+            /**
+             * Records a hit event, setting lastCacheMiss to the given key
+             * @param {string} key The key that had the cache hit
+             */
+            this.hit = function (key) {
+                this.recordHit(true);
+                this.lastCacheHit = key;
+            };
+
+            /**
+             * Records a miss event, setting lastCacheMiss to the given key
+             * @param {string} key The key that had the cache miss
+             */
+            this.miss = function (key) {
+                this.recordHit(false);
+                this.lastCacheMiss = key;
+            };
+        }
+
+        let perf = globalOptions.trackPerformance ? new CachePerformance() : new NOOPCachePerformance();
+
+        performanceArray.push(perf);
+
+        /**
+         * Cache a request
+         * @param {Object} req Express request object
+         * @param {Object} res Express response object
+         * @param {function} next Function to call next
+         * @returns {any}
+         */
+        let cache = function (req, res, next) {
+            function bypass() {
+                debug("bypass detected, skipping cache.");
+                return next();
+            }
+
+            // initial bypass chances
+            if (!opt.enabled) {
+                return bypass();
+            }
+            if (
+                req.headers["x-apicache-bypass"] ||
+        req.headers["x-apicache-force-fetch"] ||
+        (opt.respectCacheControl && req.headers["cache-control"] == "no-cache")
+            ) {
+                return bypass();
+            }
+
+            // REMOVED IN 0.11.1 TO CORRECT MIDDLEWARE TOGGLE EXECUTE ORDER
+            // if (typeof middlewareToggle === 'function') {
+            //   if (!middlewareToggle(req, res)) return bypass()
+            // } else if (middlewareToggle !== undefined && !middlewareToggle) {
+            //   return bypass()
+            // }
+
+            // embed timer
+            req.apicacheTimer = new Date();
+
+            // In Express 4.x the url is ambigious based on where a router is mounted.  originalUrl will give the full Url
+            let key = req.originalUrl || req.url;
+
+            // Remove querystring from key if jsonp option is enabled
+            if (opt.jsonp) {
+                key = url.parse(key).pathname;
+            }
+
+            // add appendKey (either custom function or response path)
+            if (typeof opt.appendKey === "function") {
+                key += "$$appendKey=" + opt.appendKey(req, res);
+            } else if (opt.appendKey.length > 0) {
+                let appendKey = req;
+
+                for (let i = 0; i < opt.appendKey.length; i++) {
+                    appendKey = appendKey[opt.appendKey[i]];
+                }
+                key += "$$appendKey=" + appendKey;
+            }
+
+            // attempt cache hit
+            let redis = opt.redisClient;
+            let cached = !redis ? memCache.getValue(key) : null;
+
+            // send if cache hit from memory-cache
+            if (cached) {
+                let elapsed = new Date() - req.apicacheTimer;
+                debug("sending cached (memory-cache) version of", key, logDuration(elapsed));
+
+                perf.hit(key);
+                return sendCachedResponse(req, res, cached, middlewareToggle, next, duration);
+            }
+
+            // send if cache hit from redis
+            if (redis && redis.connected) {
+                try {
+                    redis.hgetall(key, function (err, obj) {
+                        if (!err && obj && obj.response) {
+                            let elapsed = new Date() - req.apicacheTimer;
+                            debug("sending cached (redis) version of", key, logDuration(elapsed));
+
+                            perf.hit(key);
+                            return sendCachedResponse(
+                                req,
+                                res,
+                                JSON.parse(obj.response),
+                                middlewareToggle,
+                                next,
+                                duration
+                            );
+                        } else {
+                            perf.miss(key);
+                            return makeResponseCacheable(
+                                req,
+                                res,
+                                next,
+                                key,
+                                duration,
+                                strDuration,
+                                middlewareToggle
+                            );
+                        }
+                    });
+                } catch (err) {
+                    // bypass redis on error
+                    perf.miss(key);
+                    return makeResponseCacheable(req, res, next, key, duration, strDuration, middlewareToggle);
+                }
+            } else {
+                perf.miss(key);
+                return makeResponseCacheable(req, res, next, key, duration, strDuration, middlewareToggle);
+            }
+        };
+
+        cache.options = options;
+
+        return cache;
+    };
+
+    /**
+     * Process options
+     * @param {Object} options 
+     * @returns {Object}
+     */
+    this.options = function (options) {
+        if (options) {
+            Object.assign(globalOptions, options);
+            syncOptions();
+
+            if ("defaultDuration" in options) {
+                // Convert the default duration to a number in milliseconds (if needed)
+                globalOptions.defaultDuration = parseDuration(globalOptions.defaultDuration, 3600000);
+            }
+
+            if (globalOptions.trackPerformance) {
+                debug("WARNING: using trackPerformance flag can cause high memory usage!");
+            }
+
+            return this;
+        } else {
+            return globalOptions;
+        }
+    };
+
+    /** Reset the index */
+    this.resetIndex = function () {
+        index = {
+            all: [],
+            groups: {},
+        };
+    };
+
+    /**
+     * Create a new instance of ApiCache
+     * @param {Object} config Config to pass
+     * @returns {ApiCache}
+     */
+    this.newInstance = function (config) {
+        let instance = new ApiCache();
+
+        if (config) {
+            instance.options(config);
+        }
+
+        return instance;
+    };
+
+    /** Clone this instance */
+    this.clone = function () {
+        return this.newInstance(this.options());
+    };
+
+    // initialize index
+    this.resetIndex();
+}
+
+module.exports = new ApiCache();
diff --git a/server/modules/apicache/index.js b/server/modules/apicache/index.js
new file mode 100644
index 0000000..b8bb9b3
--- /dev/null
+++ b/server/modules/apicache/index.js
@@ -0,0 +1,14 @@
+const apicache = require("./apicache");
+
+apicache.options({
+    headerBlacklist: [
+        "cache-control"
+    ],
+    headers: {
+        // Disable client side cache, only server side cache.
+        // BUG! Not working for the second request
+        "cache-control": "no-cache",
+    },
+});
+
+module.exports = apicache;
diff --git a/server/modules/apicache/memory-cache.js b/server/modules/apicache/memory-cache.js
new file mode 100644
index 0000000..a91eee3
--- /dev/null
+++ b/server/modules/apicache/memory-cache.js
@@ -0,0 +1,87 @@
+function MemoryCache() {
+    this.cache = {};
+    this.size = 0;
+}
+
+/**
+ * 
+ * @param {string} key Key to store cache as
+ * @param {any} value Value to store
+ * @param {number} time Time to store for
+ * @param {function(any, string)} timeoutCallback Callback to call in
+ * case of timeout
+ * @returns {Object}
+ */
+MemoryCache.prototype.add = function (key, value, time, timeoutCallback) {
+    let old = this.cache[key];
+    let instance = this;
+
+    let entry = {
+        value: value,
+        expire: time + Date.now(),
+        timeout: setTimeout(function () {
+            instance.delete(key);
+            return timeoutCallback && typeof timeoutCallback === "function" && timeoutCallback(value, key);
+        }, time)
+    };
+
+    this.cache[key] = entry;
+    this.size = Object.keys(this.cache).length;
+
+    return entry;
+};
+
+/**
+ * Delete a cache entry
+ * @param {string} key Key to delete
+ * @returns {null}
+ */
+MemoryCache.prototype.delete = function (key) {
+    let entry = this.cache[key];
+
+    if (entry) {
+        clearTimeout(entry.timeout);
+    }
+
+    delete this.cache[key];
+
+    this.size = Object.keys(this.cache).length;
+
+    return null;
+};
+
+/**
+ * Get value of key
+ * @param {string} key 
+ * @returns {Object}
+ */
+MemoryCache.prototype.get = function (key) {
+    let entry = this.cache[key];
+
+    return entry;
+};
+
+/**
+ * Get value of cache entry
+ * @param {string} key 
+ * @returns {any}
+ */
+MemoryCache.prototype.getValue = function (key) {
+    let entry = this.get(key);
+
+    return entry && entry.value;
+};
+
+/**
+ * Clear cache
+ * @returns {boolean}
+ */
+MemoryCache.prototype.clear = function () {
+    Object.keys(this.cache).forEach(function (key) {
+        this.delete(key);
+    }, this);
+
+    return true;
+};
+
+module.exports = MemoryCache;
diff --git a/server/modules/axios-ntlm/LICENSE b/server/modules/axios-ntlm/LICENSE
new file mode 100644
index 0000000..1744ee4
--- /dev/null
+++ b/server/modules/axios-ntlm/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 CatButtes
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/server/modules/axios-ntlm/lib/flags.js b/server/modules/axios-ntlm/lib/flags.js
new file mode 100644
index 0000000..c16028c
--- /dev/null
+++ b/server/modules/axios-ntlm/lib/flags.js
@@ -0,0 +1,77 @@
+'use strict';
+// Original file https://raw.githubusercontent.com/elasticio/node-ntlm-client/master/lib/flags.js
+module.exports.NTLMFLAG_NEGOTIATE_UNICODE = 1 << 0;
+/* Indicates that Unicode strings are supported for use in security buffer
+   data. */
+module.exports.NTLMFLAG_NEGOTIATE_OEM = 1 << 1;
+/* Indicates that OEM strings are supported for use in security buffer data. */
+module.exports.NTLMFLAG_REQUEST_TARGET = 1 << 2;
+/* Requests that the server's authentication realm be included in the Type 2
+   message. */
+/* unknown (1<<3) */
+module.exports.NTLMFLAG_NEGOTIATE_SIGN = 1 << 4;
+/* Specifies that authenticated communication between the client and server
+   should carry a digital signature (message integrity). */
+module.exports.NTLMFLAG_NEGOTIATE_SEAL = 1 << 5;
+/* Specifies that authenticated communication between the client and server
+   should be encrypted (message confidentiality). */
+module.exports.NTLMFLAG_NEGOTIATE_DATAGRAM_STYLE = 1 << 6;
+/* Indicates that datagram authentication is being used. */
+module.exports.NTLMFLAG_NEGOTIATE_LM_KEY = 1 << 7;
+/* Indicates that the LAN Manager session key should be used for signing and
+   sealing authenticated communications. */
+module.exports.NTLMFLAG_NEGOTIATE_NETWARE = 1 << 8;
+/* unknown purpose */
+module.exports.NTLMFLAG_NEGOTIATE_NTLM_KEY = 1 << 9;
+/* Indicates that NTLM authentication is being used. */
+/* unknown (1<<10) */
+module.exports.NTLMFLAG_NEGOTIATE_ANONYMOUS = 1 << 11;
+/* Sent by the client in the Type 3 message to indicate that an anonymous
+   context has been established. This also affects the response fields. */
+module.exports.NTLMFLAG_NEGOTIATE_DOMAIN_SUPPLIED = 1 << 12;
+/* Sent by the client in the Type 1 message to indicate that a desired
+   authentication realm is included in the message. */
+module.exports.NTLMFLAG_NEGOTIATE_WORKSTATION_SUPPLIED = 1 << 13;
+/* Sent by the client in the Type 1 message to indicate that the client
+   workstation's name is included in the message. */
+module.exports.NTLMFLAG_NEGOTIATE_LOCAL_CALL = 1 << 14;
+/* Sent by the server to indicate that the server and client are on the same
+   machine. Implies that the client may use a pre-established local security
+   context rather than responding to the challenge. */
+module.exports.NTLMFLAG_NEGOTIATE_ALWAYS_SIGN = 1 << 15;
+/* Indicates that authenticated communication between the client and server
+   should be signed with a "dummy" signature. */
+module.exports.NTLMFLAG_TARGET_TYPE_DOMAIN = 1 << 16;
+/* Sent by the server in the Type 2 message to indicate that the target
+   authentication realm is a domain. */
+module.exports.NTLMFLAG_TARGET_TYPE_SERVER = 1 << 17;
+/* Sent by the server in the Type 2 message to indicate that the target
+   authentication realm is a server. */
+module.exports.NTLMFLAG_TARGET_TYPE_SHARE = 1 << 18;
+/* Sent by the server in the Type 2 message to indicate that the target
+   authentication realm is a share. Presumably, this is for share-level
+   authentication. Usage is unclear. */
+module.exports.NTLMFLAG_NEGOTIATE_NTLM2_KEY = 1 << 19;
+/* Indicates that the NTLM2 signing and sealing scheme should be used for
+   protecting authenticated communications. */
+module.exports.NTLMFLAG_REQUEST_INIT_RESPONSE = 1 << 20;
+/* unknown purpose */
+module.exports.NTLMFLAG_REQUEST_ACCEPT_RESPONSE = 1 << 21;
+/* unknown purpose */
+module.exports.NTLMFLAG_REQUEST_NONNT_SESSION_KEY = 1 << 22;
+/* unknown purpose */
+module.exports.NTLMFLAG_NEGOTIATE_TARGET_INFO = 1 << 23;
+/* Sent by the server in the Type 2 message to indicate that it is including a
+   Target Information block in the message. */
+/* unknown (1<24) */
+/* unknown (1<25) */
+/* unknown (1<26) */
+/* unknown (1<27) */
+/* unknown (1<28) */
+module.exports.NTLMFLAG_NEGOTIATE_128 = 1 << 29;
+/* Indicates that 128-bit encryption is supported. */
+module.exports.NTLMFLAG_NEGOTIATE_KEY_EXCHANGE = 1 << 30;
+/* Indicates that the client will provide an encrypted master key in
+   the "Session Key" field of the Type 3 message. */
+module.exports.NTLMFLAG_NEGOTIATE_56 = 1 << 31;
+//# sourceMappingURL=flags.js.map
\ No newline at end of file
diff --git a/server/modules/axios-ntlm/lib/hash.js b/server/modules/axios-ntlm/lib/hash.js
new file mode 100644
index 0000000..4e5aa26
--- /dev/null
+++ b/server/modules/axios-ntlm/lib/hash.js
@@ -0,0 +1,122 @@
+'use strict';
+// Original source at https://github.com/elasticio/node-ntlm-client/blob/master/lib/hash.js
+var crypto = require('crypto');
+function createLMResponse(challenge, lmhash) {
+    var buf = new Buffer.alloc(24), pwBuffer = new Buffer.alloc(21).fill(0);
+    lmhash.copy(pwBuffer);
+    calculateDES(pwBuffer.slice(0, 7), challenge).copy(buf);
+    calculateDES(pwBuffer.slice(7, 14), challenge).copy(buf, 8);
+    calculateDES(pwBuffer.slice(14), challenge).copy(buf, 16);
+    return buf;
+}
+function createLMHash(password) {
+    var buf = new Buffer.alloc(16), pwBuffer = new Buffer.alloc(14), magicKey = new Buffer.from('KGS!@#$%', 'ascii');
+    if (password.length > 14) {
+        buf.fill(0);
+        return buf;
+    }
+    pwBuffer.fill(0);
+    pwBuffer.write(password.toUpperCase(), 0, 'ascii');
+    return Buffer.concat([
+        calculateDES(pwBuffer.slice(0, 7), magicKey),
+        calculateDES(pwBuffer.slice(7), magicKey)
+    ]);
+}
+function calculateDES(key, message) {
+    var desKey = new Buffer.alloc(8);
+    desKey[0] = key[0] & 0xFE;
+    desKey[1] = ((key[0] << 7) & 0xFF) | (key[1] >> 1);
+    desKey[2] = ((key[1] << 6) & 0xFF) | (key[2] >> 2);
+    desKey[3] = ((key[2] << 5) & 0xFF) | (key[3] >> 3);
+    desKey[4] = ((key[3] << 4) & 0xFF) | (key[4] >> 4);
+    desKey[5] = ((key[4] << 3) & 0xFF) | (key[5] >> 5);
+    desKey[6] = ((key[5] << 2) & 0xFF) | (key[6] >> 6);
+    desKey[7] = (key[6] << 1) & 0xFF;
+    for (var i = 0; i < 8; i++) {
+        var parity = 0;
+        for (var j = 1; j < 8; j++) {
+            parity += (desKey[i] >> j) % 2;
+        }
+        desKey[i] |= (parity % 2) === 0 ? 1 : 0;
+    }
+    var des = crypto.createCipheriv('DES-ECB', desKey, '');
+    return des.update(message);
+}
+function createNTLMResponse(challenge, ntlmhash) {
+    var buf = new Buffer.alloc(24), ntlmBuffer = new Buffer.alloc(21).fill(0);
+    ntlmhash.copy(ntlmBuffer);
+    calculateDES(ntlmBuffer.slice(0, 7), challenge).copy(buf);
+    calculateDES(ntlmBuffer.slice(7, 14), challenge).copy(buf, 8);
+    calculateDES(ntlmBuffer.slice(14), challenge).copy(buf, 16);
+    return buf;
+}
+function createNTLMHash(password) {
+    var md4sum = crypto.createHash('md4');
+    md4sum.update(new Buffer.from(password, 'ucs2'));
+    return md4sum.digest();
+}
+function createNTLMv2Hash(ntlmhash, username, authTargetName) {
+    var hmac = crypto.createHmac('md5', ntlmhash);
+    hmac.update(new Buffer.from(username.toUpperCase() + authTargetName, 'ucs2'));
+    return hmac.digest();
+}
+function createLMv2Response(type2message, username, ntlmhash, nonce, targetName) {
+    var buf = new Buffer.alloc(24), ntlm2hash = createNTLMv2Hash(ntlmhash, username, targetName), hmac = crypto.createHmac('md5', ntlm2hash);
+    //server challenge
+    type2message.challenge.copy(buf, 8);
+    //client nonce
+    buf.write(nonce || createPseudoRandomValue(16), 16, 'hex');
+    //create hash
+    hmac.update(buf.slice(8));
+    var hashedBuffer = hmac.digest();
+    hashedBuffer.copy(buf);
+    return buf;
+}
+function createNTLMv2Response(type2message, username, ntlmhash, nonce, targetName) {
+    var buf = new Buffer.alloc(48 + type2message.targetInfo.buffer.length), ntlm2hash = createNTLMv2Hash(ntlmhash, username, targetName), hmac = crypto.createHmac('md5', ntlm2hash);
+    //the first 8 bytes are spare to store the hashed value before the blob
+    //server challenge
+    type2message.challenge.copy(buf, 8);
+    //blob signature
+    buf.writeUInt32BE(0x01010000, 16);
+    //reserved
+    buf.writeUInt32LE(0, 20);
+    //timestamp
+    //TODO: we are loosing precision here since js is not able to handle those large integers
+    // maybe think about a different solution here
+    // 11644473600000 = diff between 1970 and 1601
+    var timestamp = ((Date.now() + 11644473600000) * 10000).toString(16);
+    var timestampLow = Number('0x' + timestamp.substring(Math.max(0, timestamp.length - 8)));
+    var timestampHigh = Number('0x' + timestamp.substring(0, Math.max(0, timestamp.length - 8)));
+    buf.writeUInt32LE(timestampLow, 24, false);
+    buf.writeUInt32LE(timestampHigh, 28, false);
+    //random client nonce
+    buf.write(nonce || createPseudoRandomValue(16), 32, 'hex');
+    //zero
+    buf.writeUInt32LE(0, 40);
+    //complete target information block from type 2 message
+    type2message.targetInfo.buffer.copy(buf, 44);
+    //zero
+    buf.writeUInt32LE(0, 44 + type2message.targetInfo.buffer.length);
+    hmac.update(buf.slice(8));
+    var hashedBuffer = hmac.digest();
+    hashedBuffer.copy(buf);
+    return buf;
+}
+function createPseudoRandomValue(length) {
+    var str = '';
+    while (str.length < length) {
+        str += Math.floor(Math.random() * 16).toString(16);
+    }
+    return str;
+}
+module.exports = {
+    createLMHash: createLMHash,
+    createNTLMHash: createNTLMHash,
+    createLMResponse: createLMResponse,
+    createNTLMResponse: createNTLMResponse,
+    createLMv2Response: createLMv2Response,
+    createNTLMv2Response: createNTLMv2Response,
+    createPseudoRandomValue: createPseudoRandomValue
+};
+//# sourceMappingURL=hash.js.map
\ No newline at end of file
diff --git a/server/modules/axios-ntlm/lib/ntlm.js b/server/modules/axios-ntlm/lib/ntlm.js
new file mode 100644
index 0000000..54490c0
--- /dev/null
+++ b/server/modules/axios-ntlm/lib/ntlm.js
@@ -0,0 +1,220 @@
+'use strict';
+// Original file https://raw.githubusercontent.com/elasticio/node-ntlm-client/master/lib/ntlm.js
+var os = require('os'), flags = require('./flags'), hash = require('./hash');
+var NTLMSIGNATURE = "NTLMSSP\0";
+function createType1Message(workstation, target) {
+    var dataPos = 32, pos = 0, buf = new Buffer.alloc(1024);
+    workstation = workstation === undefined ? os.hostname() : workstation;
+    target = target === undefined ? '' : target;
+    //signature
+    buf.write(NTLMSIGNATURE, pos, NTLMSIGNATURE.length, 'ascii');
+    pos += NTLMSIGNATURE.length;
+    //message type
+    buf.writeUInt32LE(1, pos);
+    pos += 4;
+    //flags
+    buf.writeUInt32LE(flags.NTLMFLAG_NEGOTIATE_OEM |
+        flags.NTLMFLAG_REQUEST_TARGET |
+        flags.NTLMFLAG_NEGOTIATE_NTLM_KEY |
+        flags.NTLMFLAG_NEGOTIATE_NTLM2_KEY |
+        flags.NTLMFLAG_NEGOTIATE_ALWAYS_SIGN, pos);
+    pos += 4;
+    //domain security buffer
+    buf.writeUInt16LE(target.length, pos);
+    pos += 2;
+    buf.writeUInt16LE(target.length, pos);
+    pos += 2;
+    buf.writeUInt32LE(target.length === 0 ? 0 : dataPos, pos);
+    pos += 4;
+    if (target.length > 0) {
+        dataPos += buf.write(target, dataPos, 'ascii');
+    }
+    //workstation security buffer
+    buf.writeUInt16LE(workstation.length, pos);
+    pos += 2;
+    buf.writeUInt16LE(workstation.length, pos);
+    pos += 2;
+    buf.writeUInt32LE(workstation.length === 0 ? 0 : dataPos, pos);
+    pos += 4;
+    if (workstation.length > 0) {
+        dataPos += buf.write(workstation, dataPos, 'ascii');
+    }
+    return 'NTLM ' + buf.toString('base64', 0, dataPos);
+}
+function decodeType2Message(str) {
+    if (str === undefined) {
+        throw new Error('Invalid argument');
+    }
+    //convenience
+    if (Object.prototype.toString.call(str) !== '[object String]') {
+        if (str.hasOwnProperty('headers') && str.headers.hasOwnProperty('www-authenticate')) {
+            str = str.headers['www-authenticate'];
+        }
+        else {
+            throw new Error('Invalid argument');
+        }
+    }
+    var ntlmMatch = /^NTLM ([^,\s]+)/.exec(str);
+    if (ntlmMatch) {
+        str = ntlmMatch[1];
+    }
+    var buf = new Buffer.from(str, 'base64'), obj = {};
+    //check signature
+    if (buf.toString('ascii', 0, NTLMSIGNATURE.length) !== NTLMSIGNATURE) {
+        throw new Error('Invalid message signature: ' + str);
+    }
+    //check message type
+    if (buf.readUInt32LE(NTLMSIGNATURE.length) !== 2) {
+        throw new Error('Invalid message type (no type 2)');
+    }
+    //read flags
+    obj.flags = buf.readUInt32LE(20);
+    obj.encoding = (obj.flags & flags.NTLMFLAG_NEGOTIATE_OEM) ? 'ascii' : 'ucs2';
+    obj.version = (obj.flags & flags.NTLMFLAG_NEGOTIATE_NTLM2_KEY) ? 2 : 1;
+    obj.challenge = buf.slice(24, 32);
+    //read target name
+    obj.targetName = (function () {
+        var length = buf.readUInt16LE(12);
+        //skipping allocated space
+        var offset = buf.readUInt32LE(16);
+        if (length === 0) {
+            return '';
+        }
+        if ((offset + length) > buf.length || offset < 32) {
+            throw new Error('Bad type 2 message');
+        }
+        return buf.toString(obj.encoding, offset, offset + length);
+    })();
+    //read target info
+    if (obj.flags & flags.NTLMFLAG_NEGOTIATE_TARGET_INFO) {
+        obj.targetInfo = (function () {
+            var info = {};
+            var length = buf.readUInt16LE(40);
+            //skipping allocated space
+            var offset = buf.readUInt32LE(44);
+            var targetInfoBuffer = new Buffer.alloc(length);
+            buf.copy(targetInfoBuffer, 0, offset, offset + length);
+            if (length === 0) {
+                return info;
+            }
+            if ((offset + length) > buf.length || offset < 32) {
+                throw new Error('Bad type 2 message');
+            }
+            var pos = offset;
+            while (pos < (offset + length)) {
+                var blockType = buf.readUInt16LE(pos);
+                pos += 2;
+                var blockLength = buf.readUInt16LE(pos);
+                pos += 2;
+                if (blockType === 0) {
+                    //reached the terminator subblock
+                    break;
+                }
+                var blockTypeStr = void 0;
+                switch (blockType) {
+                    case 1:
+                        blockTypeStr = 'SERVER';
+                        break;
+                    case 2:
+                        blockTypeStr = 'DOMAIN';
+                        break;
+                    case 3:
+                        blockTypeStr = 'FQDN';
+                        break;
+                    case 4:
+                        blockTypeStr = 'DNS';
+                        break;
+                    case 5:
+                        blockTypeStr = 'PARENT_DNS';
+                        break;
+                    default:
+                        blockTypeStr = '';
+                        break;
+                }
+                if (blockTypeStr) {
+                    info[blockTypeStr] = buf.toString('ucs2', pos, pos + blockLength);
+                }
+                pos += blockLength;
+            }
+            return {
+                parsed: info,
+                buffer: targetInfoBuffer
+            };
+        })();
+    }
+    return obj;
+}
+function createType3Message(type2Message, username, password, workstation, target) {
+    var dataPos = 52, buf = new Buffer.alloc(1024);
+    if (workstation === undefined) {
+        workstation = os.hostname();
+    }
+    if (target === undefined) {
+        target = type2Message.targetName;
+    }
+    //signature
+    buf.write(NTLMSIGNATURE, 0, NTLMSIGNATURE.length, 'ascii');
+    //message type
+    buf.writeUInt32LE(3, 8);
+    if (type2Message.version === 2) {
+        dataPos = 64;
+        var ntlmHash = hash.createNTLMHash(password), nonce = hash.createPseudoRandomValue(16), lmv2 = hash.createLMv2Response(type2Message, username, ntlmHash, nonce, target), ntlmv2 = hash.createNTLMv2Response(type2Message, username, ntlmHash, nonce, target);
+        //lmv2 security buffer
+        buf.writeUInt16LE(lmv2.length, 12);
+        buf.writeUInt16LE(lmv2.length, 14);
+        buf.writeUInt32LE(dataPos, 16);
+        lmv2.copy(buf, dataPos);
+        dataPos += lmv2.length;
+        //ntlmv2 security buffer
+        buf.writeUInt16LE(ntlmv2.length, 20);
+        buf.writeUInt16LE(ntlmv2.length, 22);
+        buf.writeUInt32LE(dataPos, 24);
+        ntlmv2.copy(buf, dataPos);
+        dataPos += ntlmv2.length;
+    }
+    else {
+        var lmHash = hash.createLMHash(password), ntlmHash = hash.createNTLMHash(password), lm = hash.createLMResponse(type2Message.challenge, lmHash), ntlm = hash.createNTLMResponse(type2Message.challenge, ntlmHash);
+        //lm security buffer
+        buf.writeUInt16LE(lm.length, 12);
+        buf.writeUInt16LE(lm.length, 14);
+        buf.writeUInt32LE(dataPos, 16);
+        lm.copy(buf, dataPos);
+        dataPos += lm.length;
+        //ntlm security buffer
+        buf.writeUInt16LE(ntlm.length, 20);
+        buf.writeUInt16LE(ntlm.length, 22);
+        buf.writeUInt32LE(dataPos, 24);
+        ntlm.copy(buf, dataPos);
+        dataPos += ntlm.length;
+    }
+    //target name security buffer
+    buf.writeUInt16LE(type2Message.encoding === 'ascii' ? target.length : target.length * 2, 28);
+    buf.writeUInt16LE(type2Message.encoding === 'ascii' ? target.length : target.length * 2, 30);
+    buf.writeUInt32LE(dataPos, 32);
+    dataPos += buf.write(target, dataPos, type2Message.encoding);
+    //user name security buffer
+    buf.writeUInt16LE(type2Message.encoding === 'ascii' ? username.length : username.length * 2, 36);
+    buf.writeUInt16LE(type2Message.encoding === 'ascii' ? username.length : username.length * 2, 38);
+    buf.writeUInt32LE(dataPos, 40);
+    dataPos += buf.write(username, dataPos, type2Message.encoding);
+    //workstation name security buffer
+    buf.writeUInt16LE(type2Message.encoding === 'ascii' ? workstation.length : workstation.length * 2, 44);
+    buf.writeUInt16LE(type2Message.encoding === 'ascii' ? workstation.length : workstation.length * 2, 46);
+    buf.writeUInt32LE(dataPos, 48);
+    dataPos += buf.write(workstation, dataPos, type2Message.encoding);
+    if (type2Message.version === 2) {
+        //session key security buffer
+        buf.writeUInt16LE(0, 52);
+        buf.writeUInt16LE(0, 54);
+        buf.writeUInt32LE(0, 56);
+        //flags
+        buf.writeUInt32LE(type2Message.flags, 60);
+    }
+    return 'NTLM ' + buf.toString('base64', 0, dataPos);
+}
+module.exports = {
+    createType1Message: createType1Message,
+    decodeType2Message: decodeType2Message,
+    createType3Message: createType3Message
+};
+//# sourceMappingURL=ntlm.js.map
\ No newline at end of file
diff --git a/server/modules/axios-ntlm/lib/ntlmClient.js b/server/modules/axios-ntlm/lib/ntlmClient.js
new file mode 100644
index 0000000..682de5f
--- /dev/null
+++ b/server/modules/axios-ntlm/lib/ntlmClient.js
@@ -0,0 +1,127 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.NtlmClient = void 0;
+var axios_1 = __importDefault(require("axios"));
+var ntlm = __importStar(require("./ntlm"));
+var https = __importStar(require("https"));
+var http = __importStar(require("http"));
+var dev_null_1 = __importDefault(require("dev-null"));
+/**
+* @param credentials An NtlmCredentials object containing the username and password
+* @param AxiosConfig The Axios config for the instance you wish to create
+*
+* @returns This function returns an axios instance configured to use the provided credentials
+*/
+function NtlmClient(credentials, AxiosConfig) {
+    var _this = this;
+    var config = AxiosConfig !== null && AxiosConfig !== void 0 ? AxiosConfig : {};
+    if (!config.httpAgent) {
+        config.httpAgent = new http.Agent({ keepAlive: true });
+    }
+    if (!config.httpsAgent) {
+        config.httpsAgent = new https.Agent({ keepAlive: true });
+    }
+    var client = axios_1.default.create(config);
+    client.interceptors.response.use(function (response) {
+        return response;
+    }, function (err) { return __awaiter(_this, void 0, void 0, function () {
+        var error, t1Msg, t2Msg, t3Msg, stream_1;
+        var _a;
+        return __generator(this, function (_b) {
+            switch (_b.label) {
+                case 0:
+                    error = err.response;
+                    if (!(error && error.status === 401
+                        && error.headers['www-authenticate']
+                        && error.headers['www-authenticate'].includes('NTLM'))) return [3 /*break*/, 3];
+                    // This length check is a hack because SharePoint is awkward and will
+                    // include the Negotiate option when responding with the T2 message
+                    // There is nore we could do to ensure we are processing correctly,
+                    // but this is the easiest option for now
+                    if (error.headers['www-authenticate'].length < 50) {
+                        t1Msg = ntlm.createType1Message(credentials.workstation, credentials.domain);
+                        error.config.headers["Authorization"] = t1Msg;
+                    }
+                    else {
+                        t2Msg = ntlm.decodeType2Message((error.headers['www-authenticate'].match(/^NTLM\s+(.+?)(,|\s+|$)/) || [])[1]);
+                        t3Msg = ntlm.createType3Message(t2Msg, credentials.username, credentials.password, credentials.workstation, credentials.domain);
+                        error.config.headers["X-retry"] = "false";
+                        error.config.headers["Authorization"] = t3Msg;
+                    }
+                    if (!(error.config.responseType === "stream")) return [3 /*break*/, 2];
+                    stream_1 = (_a = err.response) === null || _a === void 0 ? void 0 : _a.data;
+                    if (!(stream_1 && !stream_1.readableEnded)) return [3 /*break*/, 2];
+                    return [4 /*yield*/, new Promise(function (resolve) {
+                            stream_1.pipe((0, dev_null_1.default)());
+                            stream_1.once('close', resolve);
+                        })];
+                case 1:
+                    _b.sent();
+                    _b.label = 2;
+                case 2: return [2 /*return*/, client(error.config)];
+                case 3: throw err;
+            }
+        });
+    }); });
+    return client;
+}
+exports.NtlmClient = NtlmClient;
+//# sourceMappingURL=ntlmClient.js.map
\ No newline at end of file
diff --git a/server/modules/dayjs/plugin/timezone.d.ts b/server/modules/dayjs/plugin/timezone.d.ts
new file mode 100644
index 0000000..d504f69
--- /dev/null
+++ b/server/modules/dayjs/plugin/timezone.d.ts
@@ -0,0 +1,20 @@
+import { PluginFunc, ConfigType } from 'dayjs'
+
+declare const plugin: PluginFunc
+export = plugin
+
+declare module 'dayjs' {
+  interface Dayjs {
+    tz(timezone?: string, keepLocalTime?: boolean): Dayjs
+    offsetName(type?: 'short' | 'long'): string | undefined
+  }
+
+  interface DayjsTimezone {
+    (date: ConfigType, timezone?: string): Dayjs
+    (date: ConfigType, format: string, timezone?: string): Dayjs
+    guess(): string
+    setDefault(timezone?: string): void
+  }
+
+  const tz: DayjsTimezone
+}
diff --git a/server/modules/dayjs/plugin/timezone.js b/server/modules/dayjs/plugin/timezone.js
new file mode 100644
index 0000000..de709ae
--- /dev/null
+++ b/server/modules/dayjs/plugin/timezone.js
@@ -0,0 +1,115 @@
+/**
+ * Copy from node_modules/dayjs/plugin/timezone.js
+ * Try to fix https://github.com/louislam/uptime-kuma/issues/2318
+ * Source: https://github.com/iamkun/dayjs/tree/dev/src/plugin/utc
+ * License: MIT
+ */
+!function (t, e) {
+    // eslint-disable-next-line no-undef
+    typeof exports == "object" && typeof module != "undefined" ? module.exports = e() : typeof define == "function" && define.amd ? define(e) : (t = typeof globalThis != "undefined" ? globalThis : t || self).dayjs_plugin_timezone = e();
+}(this, (function () {
+    "use strict";
+    let t = {
+        year: 0,
+        month: 1,
+        day: 2,
+        hour: 3,
+        minute: 4,
+        second: 5
+    };
+    let e = {};
+    return function (n, i, o) {
+        let r;
+        let a = function (t, n, i) {
+            void 0 === i && (i = {});
+            let o = new Date(t);
+            let r = function (t, n) {
+                void 0 === n && (n = {});
+                let i = n.timeZoneName || "short";
+                let o = t + "|" + i;
+                let r = e[o];
+                return r || (r = new Intl.DateTimeFormat("en-US", {
+                    hour12: !1,
+                    timeZone: t,
+                    year: "numeric",
+                    month: "2-digit",
+                    day: "2-digit",
+                    hour: "2-digit",
+                    minute: "2-digit",
+                    second: "2-digit",
+                    timeZoneName: i
+                }), e[o] = r), r;
+            }(n, i);
+            return r.formatToParts(o);
+        };
+        let u = function (e, n) {
+            let i = a(e, n);
+            let r = [];
+            let u = 0;
+            for (; u < i.length; u += 1) {
+                let f = i[u];
+                let s = f.type;
+                let m = f.value;
+                let c = t[s];
+                c >= 0 && (r[c] = parseInt(m, 10));
+            }
+            let d = r[3];
+            let l = d === 24 ? 0 : d;
+            let v = r[0] + "-" + r[1] + "-" + r[2] + " " + l + ":" + r[4] + ":" + r[5] + ":000";
+            let h = +e;
+            return (o.utc(v).valueOf() - (h -= h % 1e3)) / 6e4;
+        };
+        let f = i.prototype;
+        f.tz = function (t, e) {
+            void 0 === t && (t = r);
+            let n = this.utcOffset();
+            let i = this.toDate();
+            let a = i.toLocaleString("en-US", { timeZone: t }).replace("\u202f", " ");
+            let u = Math.round((i - new Date(a)) / 1e3 / 60);
+            let f = o(a).$set("millisecond", this.$ms).utcOffset(15 * -Math.round(i.getTimezoneOffset() / 15) - u, !0);
+            if (e) {
+                let s = f.utcOffset();
+                f = f.add(n - s, "minute");
+            }
+            return f.$x.$timezone = t, f;
+        }, f.offsetName = function (t) {
+            let e = this.$x.$timezone || o.tz.guess();
+            let n = a(this.valueOf(), e, { timeZoneName: t }).find((function (t) {
+                return t.type.toLowerCase() === "timezonename";
+            }));
+            return n && n.value;
+        };
+        let s = f.startOf;
+        f.startOf = function (t, e) {
+            if (!this.$x || !this.$x.$timezone) {
+                return s.call(this, t, e);
+            }
+            let n = o(this.format("YYYY-MM-DD HH:mm:ss:SSS"));
+            return s.call(n, t, e).tz(this.$x.$timezone, !0);
+        }, o.tz = function (t, e, n) {
+            let i = n && e;
+            let a = n || e || r;
+            let f = u(+o(), a);
+            if (typeof t != "string") {
+                return o(t).tz(a);
+            }
+            let s = function (t, e, n) {
+                let i = t - 60 * e * 1e3;
+                let o = u(i, n);
+                if (e === o) {
+                    return [ i, e ];
+                }
+                let r = u(i -= 60 * (o - e) * 1e3, n);
+                return o === r ? [ i, o ] : [ t - 60 * Math.min(o, r) * 1e3, Math.max(o, r) ];
+            }(o.utc(t, i).valueOf(), f, a);
+            let m = s[0];
+            let c = s[1];
+            let d = o(m).utcOffset(c);
+            return d.$x.$timezone = a, d;
+        }, o.tz.guess = function () {
+            return Intl.DateTimeFormat().resolvedOptions().timeZone;
+        }, o.tz.setDefault = function (t) {
+            r = t;
+        };
+    };
+}));
diff --git a/server/monitor-conditions/evaluator.js b/server/monitor-conditions/evaluator.js
new file mode 100644
index 0000000..3860a33
--- /dev/null
+++ b/server/monitor-conditions/evaluator.js
@@ -0,0 +1,71 @@
+const { ConditionExpressionGroup, ConditionExpression, LOGICAL } = require("./expression");
+const { operatorMap } = require("./operators");
+
+/**
+ * @param {ConditionExpression} expression Expression to evaluate
+ * @param {object} context Context to evaluate against; These are values for variables in the expression
+ * @returns {boolean} Whether the expression evaluates true or false
+ * @throws {Error}
+ */
+function evaluateExpression(expression, context) {
+    /**
+     * @type {import("./operators").ConditionOperator|null}
+     */
+    const operator = operatorMap.get(expression.operator) || null;
+    if (operator === null) {
+        throw new Error("Unexpected expression operator ID '" + expression.operator + "'. Expected one of [" + operatorMap.keys().join(",") + "]");
+    }
+
+    if (!Object.prototype.hasOwnProperty.call(context, expression.variable)) {
+        throw new Error("Variable missing in context: " + expression.variable);
+    }
+
+    return operator.test(context[expression.variable], expression.value);
+}
+
+/**
+ * @param {ConditionExpressionGroup} group Group of expressions to evaluate
+ * @param {object} context Context to evaluate against; These are values for variables in the expression
+ * @returns {boolean} Whether the group evaluates true or false
+ * @throws {Error}
+ */
+function evaluateExpressionGroup(group, context) {
+    if (!group.children.length) {
+        throw new Error("ConditionExpressionGroup must contain at least one child.");
+    }
+
+    let result = null;
+
+    for (const child of group.children) {
+        let childResult;
+
+        if (child instanceof ConditionExpression) {
+            childResult = evaluateExpression(child, context);
+        } else if (child instanceof ConditionExpressionGroup) {
+            childResult = evaluateExpressionGroup(child, context);
+        } else {
+            throw new Error("Invalid child type in ConditionExpressionGroup. Expected ConditionExpression or ConditionExpressionGroup");
+        }
+
+        if (result === null) {
+            result = childResult; // Initialize result with the first child's result
+        } else if (child.andOr === LOGICAL.OR) {
+            result = result || childResult;
+        } else if (child.andOr === LOGICAL.AND) {
+            result = result && childResult;
+        } else {
+            throw new Error("Invalid logical operator in child of ConditionExpressionGroup. Expected 'and' or 'or'. Got '" + group.andOr + "'");
+        }
+    }
+
+    if (result === null) {
+        throw new Error("ConditionExpressionGroup did not result in a boolean.");
+    }
+
+    return result;
+}
+
+module.exports = {
+    evaluateExpression,
+    evaluateExpressionGroup,
+};
diff --git a/server/monitor-conditions/expression.js b/server/monitor-conditions/expression.js
new file mode 100644
index 0000000..1e70369
--- /dev/null
+++ b/server/monitor-conditions/expression.js
@@ -0,0 +1,111 @@
+/**
+ * @readonly
+ * @enum {string}
+ */
+const LOGICAL = {
+    AND: "and",
+    OR: "or",
+};
+
+/**
+ * Recursively processes an array of raw condition objects and populates the given parent group with
+ * corresponding ConditionExpression or ConditionExpressionGroup instances.
+ * @param {Array} conditions Array of raw condition objects, where each object represents either a group or an expression.
+ * @param {ConditionExpressionGroup} parentGroup The parent group to which the instantiated ConditionExpression or ConditionExpressionGroup objects will be added.
+ * @returns {void}
+ */
+function processMonitorConditions(conditions, parentGroup) {
+    conditions.forEach(condition => {
+        const andOr = condition.andOr === LOGICAL.OR ? LOGICAL.OR : LOGICAL.AND;
+
+        if (condition.type === "group") {
+            const group = new ConditionExpressionGroup([], andOr);
+
+            // Recursively process the group's children
+            processMonitorConditions(condition.children, group);
+
+            parentGroup.children.push(group);
+        } else if (condition.type === "expression") {
+            const expression = new ConditionExpression(condition.variable, condition.operator, condition.value, andOr);
+            parentGroup.children.push(expression);
+        }
+    });
+}
+
+class ConditionExpressionGroup {
+    /**
+     * @type {ConditionExpressionGroup[]|ConditionExpression[]} Groups and/or expressions to test
+     */
+    children = [];
+
+    /**
+     * @type {LOGICAL} Connects group result with previous group/expression results
+     */
+    andOr;
+
+    /**
+     * @param {ConditionExpressionGroup[]|ConditionExpression[]} children Groups and/or expressions to test
+     * @param {LOGICAL} andOr Connects group result with previous group/expression results
+     */
+    constructor(children = [], andOr = LOGICAL.AND) {
+        this.children = children;
+        this.andOr = andOr;
+    }
+
+    /**
+     * @param {Monitor} monitor Monitor instance
+     * @returns {ConditionExpressionGroup|null} A ConditionExpressionGroup with the Monitor's conditions
+     */
+    static fromMonitor(monitor) {
+        const conditions = JSON.parse(monitor.conditions);
+        if (conditions.length === 0) {
+            return null;
+        }
+
+        const root = new ConditionExpressionGroup();
+        processMonitorConditions(conditions, root);
+
+        return root;
+    }
+}
+
+class ConditionExpression {
+    /**
+     * @type {string} ID of variable
+     */
+    variable;
+
+    /**
+     * @type {string} ID of operator
+     */
+    operator;
+
+    /**
+     * @type {string} Value to test with the operator
+     */
+    value;
+
+    /**
+     * @type {LOGICAL} Connects expression result with previous group/expression results
+     */
+    andOr;
+
+    /**
+     * @param {string} variable ID of variable to test against
+     * @param {string} operator ID of operator to test the variable with
+     * @param {string} value Value to test with the operator
+     * @param {LOGICAL} andOr Connects expression result with previous group/expression results
+     */
+    constructor(variable, operator, value, andOr = LOGICAL.AND) {
+        this.variable = variable;
+        this.operator = operator;
+        this.value = value;
+        this.andOr = andOr;
+    }
+}
+
+module.exports = {
+    LOGICAL,
+    ConditionExpressionGroup,
+    ConditionExpression,
+};
diff --git a/server/monitor-conditions/operators.js b/server/monitor-conditions/operators.js
new file mode 100644
index 0000000..d900dff
--- /dev/null
+++ b/server/monitor-conditions/operators.js
@@ -0,0 +1,318 @@
+class ConditionOperator {
+    id = undefined;
+    caption = undefined;
+
+    /**
+     * @type {mixed} variable
+     * @type {mixed} value
+     */
+    test(variable, value) {
+        throw new Error("You need to override test()");
+    }
+}
+
+const OP_STR_EQUALS = "equals";
+
+const OP_STR_NOT_EQUALS = "not_equals";
+
+const OP_CONTAINS = "contains";
+
+const OP_NOT_CONTAINS = "not_contains";
+
+const OP_STARTS_WITH = "starts_with";
+
+const OP_NOT_STARTS_WITH = "not_starts_with";
+
+const OP_ENDS_WITH = "ends_with";
+
+const OP_NOT_ENDS_WITH = "not_ends_with";
+
+const OP_NUM_EQUALS = "num_equals";
+
+const OP_NUM_NOT_EQUALS = "num_not_equals";
+
+const OP_LT = "lt";
+
+const OP_GT = "gt";
+
+const OP_LTE = "lte";
+
+const OP_GTE = "gte";
+
+/**
+ * Asserts a variable is equal to a value.
+ */
+class StringEqualsOperator extends ConditionOperator {
+    id = OP_STR_EQUALS;
+    caption = "equals";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable === value;
+    }
+}
+
+/**
+ * Asserts a variable is not equal to a value.
+ */
+class StringNotEqualsOperator extends ConditionOperator {
+    id = OP_STR_NOT_EQUALS;
+    caption = "not equals";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable !== value;
+    }
+}
+
+/**
+ * Asserts a variable contains a value.
+ * Handles both Array and String variable types.
+ */
+class ContainsOperator extends ConditionOperator {
+    id = OP_CONTAINS;
+    caption = "contains";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        if (Array.isArray(variable)) {
+            return variable.includes(value);
+        }
+
+        return variable.indexOf(value) !== -1;
+    }
+}
+
+/**
+ * Asserts a variable does not contain a value.
+ * Handles both Array and String variable types.
+ */
+class NotContainsOperator extends ConditionOperator {
+    id = OP_NOT_CONTAINS;
+    caption = "not contains";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        if (Array.isArray(variable)) {
+            return !variable.includes(value);
+        }
+
+        return variable.indexOf(value) === -1;
+    }
+}
+
+/**
+ * Asserts a variable starts with a value.
+ */
+class StartsWithOperator extends ConditionOperator {
+    id = OP_STARTS_WITH;
+    caption = "starts with";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable.startsWith(value);
+    }
+}
+
+/**
+ * Asserts a variable does not start with a value.
+ */
+class NotStartsWithOperator extends ConditionOperator {
+    id = OP_NOT_STARTS_WITH;
+    caption = "not starts with";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return !variable.startsWith(value);
+    }
+}
+
+/**
+ * Asserts a variable ends with a value.
+ */
+class EndsWithOperator extends ConditionOperator {
+    id = OP_ENDS_WITH;
+    caption = "ends with";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable.endsWith(value);
+    }
+}
+
+/**
+ * Asserts a variable does not end with a value.
+ */
+class NotEndsWithOperator extends ConditionOperator {
+    id = OP_NOT_ENDS_WITH;
+    caption = "not ends with";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return !variable.endsWith(value);
+    }
+}
+
+/**
+ * Asserts a numeric variable is equal to a value.
+ */
+class NumberEqualsOperator extends ConditionOperator {
+    id = OP_NUM_EQUALS;
+    caption = "equals";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable === Number(value);
+    }
+}
+
+/**
+ * Asserts a numeric variable is not equal to a value.
+ */
+class NumberNotEqualsOperator extends ConditionOperator {
+    id = OP_NUM_NOT_EQUALS;
+    caption = "not equals";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable !== Number(value);
+    }
+}
+
+/**
+ * Asserts a variable is less than a value.
+ */
+class LessThanOperator extends ConditionOperator {
+    id = OP_LT;
+    caption = "less than";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable < Number(value);
+    }
+}
+
+/**
+ * Asserts a variable is greater than a value.
+ */
+class GreaterThanOperator extends ConditionOperator {
+    id = OP_GT;
+    caption = "greater than";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable > Number(value);
+    }
+}
+
+/**
+ * Asserts a variable is less than or equal to a value.
+ */
+class LessThanOrEqualToOperator extends ConditionOperator {
+    id = OP_LTE;
+    caption = "less than or equal to";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable <= Number(value);
+    }
+}
+
+/**
+ * Asserts a variable is greater than or equal to a value.
+ */
+class GreaterThanOrEqualToOperator extends ConditionOperator {
+    id = OP_GTE;
+    caption = "greater than or equal to";
+
+    /**
+     * @inheritdoc
+     */
+    test(variable, value) {
+        return variable >= Number(value);
+    }
+}
+
+const operatorMap = new Map([
+    [ OP_STR_EQUALS, new StringEqualsOperator ],
+    [ OP_STR_NOT_EQUALS, new StringNotEqualsOperator ],
+    [ OP_CONTAINS, new ContainsOperator ],
+    [ OP_NOT_CONTAINS, new NotContainsOperator ],
+    [ OP_STARTS_WITH, new StartsWithOperator ],
+    [ OP_NOT_STARTS_WITH, new NotStartsWithOperator ],
+    [ OP_ENDS_WITH, new EndsWithOperator ],
+    [ OP_NOT_ENDS_WITH, new NotEndsWithOperator ],
+    [ OP_NUM_EQUALS, new NumberEqualsOperator ],
+    [ OP_NUM_NOT_EQUALS, new NumberNotEqualsOperator ],
+    [ OP_LT, new LessThanOperator ],
+    [ OP_GT, new GreaterThanOperator ],
+    [ OP_LTE, new LessThanOrEqualToOperator ],
+    [ OP_GTE, new GreaterThanOrEqualToOperator ],
+]);
+
+const defaultStringOperators = [
+    operatorMap.get(OP_STR_EQUALS),
+    operatorMap.get(OP_STR_NOT_EQUALS),
+    operatorMap.get(OP_CONTAINS),
+    operatorMap.get(OP_NOT_CONTAINS),
+    operatorMap.get(OP_STARTS_WITH),
+    operatorMap.get(OP_NOT_STARTS_WITH),
+    operatorMap.get(OP_ENDS_WITH),
+    operatorMap.get(OP_NOT_ENDS_WITH)
+];
+
+const defaultNumberOperators = [
+    operatorMap.get(OP_NUM_EQUALS),
+    operatorMap.get(OP_NUM_NOT_EQUALS),
+    operatorMap.get(OP_LT),
+    operatorMap.get(OP_GT),
+    operatorMap.get(OP_LTE),
+    operatorMap.get(OP_GTE)
+];
+
+module.exports = {
+    OP_STR_EQUALS,
+    OP_STR_NOT_EQUALS,
+    OP_CONTAINS,
+    OP_NOT_CONTAINS,
+    OP_STARTS_WITH,
+    OP_NOT_STARTS_WITH,
+    OP_ENDS_WITH,
+    OP_NOT_ENDS_WITH,
+    OP_NUM_EQUALS,
+    OP_NUM_NOT_EQUALS,
+    OP_LT,
+    OP_GT,
+    OP_LTE,
+    OP_GTE,
+    operatorMap,
+    defaultStringOperators,
+    defaultNumberOperators,
+    ConditionOperator,
+};
diff --git a/server/monitor-conditions/variables.js b/server/monitor-conditions/variables.js
new file mode 100644
index 0000000..af98d2f
--- /dev/null
+++ b/server/monitor-conditions/variables.js
@@ -0,0 +1,31 @@
+/**
+ * Represents a variable used in a condition and the set of operators that can be applied to this variable.
+ *
+ * A `ConditionVariable` holds the ID of the variable and a list of operators that define how this variable can be evaluated
+ * in conditions. For example, if the variable is a request body or a specific field in a request, the operators can include
+ * operations such as equality checks, comparisons, or other custom evaluations.
+ */
+class ConditionVariable {
+    /**
+     * @type {string}
+     */
+    id;
+
+    /**
+     * @type {import("./operators").ConditionOperator[]}
+     */
+    operators = {};
+
+    /**
+     * @param {string} id ID of variable
+     * @param {import("./operators").ConditionOperator[]} operators Operators the condition supports
+     */
+    constructor(id, operators = []) {
+        this.id = id;
+        this.operators = operators;
+    }
+}
+
+module.exports = {
+    ConditionVariable,
+};
diff --git a/server/monitor-types/dns.js b/server/monitor-types/dns.js
new file mode 100644
index 0000000..8b87932
--- /dev/null
+++ b/server/monitor-types/dns.js
@@ -0,0 +1,85 @@
+const { MonitorType } = require("./monitor-type");
+const { UP, DOWN } = require("../../src/util");
+const dayjs = require("dayjs");
+const { dnsResolve } = require("../util-server");
+const { R } = require("redbean-node");
+const { ConditionVariable } = require("../monitor-conditions/variables");
+const { defaultStringOperators } = require("../monitor-conditions/operators");
+const { ConditionExpressionGroup } = require("../monitor-conditions/expression");
+const { evaluateExpressionGroup } = require("../monitor-conditions/evaluator");
+
+class DnsMonitorType extends MonitorType {
+    name = "dns";
+
+    supportsConditions = true;
+
+    conditionVariables = [
+        new ConditionVariable("record", defaultStringOperators ),
+    ];
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, _server) {
+        let startTime = dayjs().valueOf();
+        let dnsMessage = "";
+
+        let dnsRes = await dnsResolve(monitor.hostname, monitor.dns_resolve_server, monitor.port, monitor.dns_resolve_type);
+        heartbeat.ping = dayjs().valueOf() - startTime;
+
+        const conditions = ConditionExpressionGroup.fromMonitor(monitor);
+        let conditionsResult = true;
+        const handleConditions = (data) => conditions ? evaluateExpressionGroup(conditions, data) : true;
+
+        switch (monitor.dns_resolve_type) {
+            case "A":
+            case "AAAA":
+            case "TXT":
+            case "PTR":
+                dnsMessage = `Records: ${dnsRes.join(" | ")}`;
+                conditionsResult = dnsRes.some(record => handleConditions({ record }));
+                break;
+
+            case "CNAME":
+                dnsMessage = dnsRes[0];
+                conditionsResult = handleConditions({ record: dnsRes[0] });
+                break;
+
+            case "CAA":
+                dnsMessage = dnsRes[0].issue;
+                conditionsResult = handleConditions({ record: dnsRes[0].issue });
+                break;
+
+            case "MX":
+                dnsMessage = dnsRes.map(record => `Hostname: ${record.exchange} - Priority: ${record.priority}`).join(" | ");
+                conditionsResult = dnsRes.some(record => handleConditions({ record: record.exchange }));
+                break;
+
+            case "NS":
+                dnsMessage = `Servers: ${dnsRes.join(" | ")}`;
+                conditionsResult = dnsRes.some(record => handleConditions({ record }));
+                break;
+
+            case "SOA":
+                dnsMessage = `NS-Name: ${dnsRes.nsname} | Hostmaster: ${dnsRes.hostmaster} | Serial: ${dnsRes.serial} | Refresh: ${dnsRes.refresh} | Retry: ${dnsRes.retry} | Expire: ${dnsRes.expire} | MinTTL: ${dnsRes.minttl}`;
+                conditionsResult = handleConditions({ record: dnsRes.nsname });
+                break;
+
+            case "SRV":
+                dnsMessage = dnsRes.map(record => `Name: ${record.name} | Port: ${record.port} | Priority: ${record.priority} | Weight: ${record.weight}`).join(" | ");
+                conditionsResult = dnsRes.some(record => handleConditions({ record: record.name }));
+                break;
+        }
+
+        if (monitor.dns_last_result !== dnsMessage && dnsMessage !== undefined) {
+            await R.exec("UPDATE `monitor` SET dns_last_result = ? WHERE id = ? ", [ dnsMessage, monitor.id ]);
+        }
+
+        heartbeat.msg = dnsMessage;
+        heartbeat.status = conditionsResult ? UP : DOWN;
+    }
+}
+
+module.exports = {
+    DnsMonitorType,
+};
diff --git a/server/monitor-types/mongodb.js b/server/monitor-types/mongodb.js
new file mode 100644
index 0000000..73747db
--- /dev/null
+++ b/server/monitor-types/mongodb.js
@@ -0,0 +1,63 @@
+const { MonitorType } = require("./monitor-type");
+const { UP } = require("../../src/util");
+const { MongoClient } = require("mongodb");
+const jsonata = require("jsonata");
+
+class MongodbMonitorType extends MonitorType {
+    name = "mongodb";
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, _server) {
+        let command = { "ping": 1 };
+        if (monitor.databaseQuery) {
+            command = JSON.parse(monitor.databaseQuery);
+        }
+
+        let result = await this.runMongodbCommand(monitor.databaseConnectionString, command);
+
+        if (result["ok"] !== 1) {
+            throw new Error("MongoDB command failed");
+        } else {
+            heartbeat.msg = "Command executed successfully";
+        }
+
+        if (monitor.jsonPath) {
+            let expression = jsonata(monitor.jsonPath);
+            result = await expression.evaluate(result);
+            if (result) {
+                heartbeat.msg = "Command executed successfully and the jsonata expression produces a result.";
+            } else {
+                throw new Error("Queried value not found.");
+            }
+        }
+
+        if (monitor.expectedValue) {
+            if (result.toString() === monitor.expectedValue) {
+                heartbeat.msg = "Command executed successfully and expected value was found";
+            } else {
+                throw new Error("Query executed, but value is not equal to expected value, value was: [" + JSON.stringify(result) + "]");
+            }
+        }
+
+        heartbeat.status = UP;
+    }
+
+    /**
+     * Connect to and run MongoDB command on a MongoDB database
+     * @param {string} connectionString The database connection string
+     * @param {object} command MongoDB command to run on the database
+     * @returns {Promise<(string[] | object[] | object)>} Response from server
+     */
+    async runMongodbCommand(connectionString, command) {
+        let client = await MongoClient.connect(connectionString);
+        let result = await client.db().command(command);
+        await client.close();
+        return result;
+    }
+}
+
+module.exports = {
+    MongodbMonitorType,
+};
diff --git a/server/monitor-types/monitor-type.js b/server/monitor-types/monitor-type.js
new file mode 100644
index 0000000..8f3cbca
--- /dev/null
+++ b/server/monitor-types/monitor-type.js
@@ -0,0 +1,31 @@
+class MonitorType {
+    name = undefined;
+
+    /**
+     * Whether or not this type supports monitor conditions. Controls UI visibility in monitor form.
+     * @type {boolean}
+     */
+    supportsConditions = false;
+
+    /**
+     * Variables supported by this type. e.g. an HTTP type could have a "response_code" variable to test against.
+     * This property controls the choices displayed in the monitor edit form.
+     * @type {import("../monitor-conditions/variables").ConditionVariable[]}
+     */
+    conditionVariables = [];
+
+    /**
+     * Run the monitoring check on the given monitor
+     * @param {Monitor} monitor Monitor to check
+     * @param {Heartbeat} heartbeat Monitor heartbeat to update
+     * @param {UptimeKumaServer} server Uptime Kuma server
+     * @returns {Promise<void>}
+     */
+    async check(monitor, heartbeat, server) {
+        throw new Error("You need to override check()");
+    }
+}
+
+module.exports = {
+    MonitorType,
+};
diff --git a/server/monitor-types/mqtt.js b/server/monitor-types/mqtt.js
new file mode 100644
index 0000000..ad734ce
--- /dev/null
+++ b/server/monitor-types/mqtt.js
@@ -0,0 +1,117 @@
+const { MonitorType } = require("./monitor-type");
+const { log, UP } = require("../../src/util");
+const mqtt = require("mqtt");
+const jsonata = require("jsonata");
+
+class MqttMonitorType extends MonitorType {
+    name = "mqtt";
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, server) {
+        const receivedMessage = await this.mqttAsync(monitor.hostname, monitor.mqttTopic, {
+            port: monitor.port,
+            username: monitor.mqttUsername,
+            password: monitor.mqttPassword,
+            interval: monitor.interval,
+        });
+
+        if (monitor.mqttCheckType == null || monitor.mqttCheckType === "") {
+            // use old default
+            monitor.mqttCheckType = "keyword";
+        }
+
+        if (monitor.mqttCheckType === "keyword") {
+            if (receivedMessage != null && receivedMessage.includes(monitor.mqttSuccessMessage)) {
+                heartbeat.msg = `Topic: ${monitor.mqttTopic}; Message: ${receivedMessage}`;
+                heartbeat.status = UP;
+            } else {
+                throw Error(`Message Mismatch - Topic: ${monitor.mqttTopic}; Message: ${receivedMessage}`);
+            }
+        } else if (monitor.mqttCheckType === "json-query") {
+            const parsedMessage = JSON.parse(receivedMessage);
+
+            let expression = jsonata(monitor.jsonPath);
+
+            let result = await expression.evaluate(parsedMessage);
+
+            if (result?.toString() === monitor.expectedValue) {
+                heartbeat.msg = "Message received, expected value is found";
+                heartbeat.status = UP;
+            } else {
+                throw new Error("Message received but value is not equal to expected value, value was: [" + result + "]");
+            }
+        } else {
+            throw Error("Unknown MQTT Check Type");
+        }
+    }
+
+    /**
+     * Connect to MQTT Broker, subscribe to topic and receive message as String
+     * @param {string} hostname Hostname / address of machine to test
+     * @param {string} topic MQTT topic
+     * @param {object} options MQTT options. Contains port, username,
+     * password and interval (interval defaults to 20)
+     * @returns {Promise<string>} Received MQTT message
+     */
+    mqttAsync(hostname, topic, options = {}) {
+        return new Promise((resolve, reject) => {
+            const { port, username, password, interval = 20 } = options;
+
+            // Adds MQTT protocol to the hostname if not already present
+            if (!/^(?:http|mqtt|ws)s?:\/\//.test(hostname)) {
+                hostname = "mqtt://" + hostname;
+            }
+
+            const timeoutID = setTimeout(() => {
+                log.debug("mqtt", "MQTT timeout triggered");
+                client.end();
+                reject(new Error("Timeout, Message not received"));
+            }, interval * 1000 * 0.8);
+
+            const mqttUrl = `${hostname}:${port}`;
+
+            log.debug("mqtt", `MQTT connecting to ${mqttUrl}`);
+
+            let client = mqtt.connect(mqttUrl, {
+                username,
+                password,
+                clientId: "uptime-kuma_" + Math.random().toString(16).substr(2, 8)
+            });
+
+            client.on("connect", () => {
+                log.debug("mqtt", "MQTT connected");
+
+                try {
+                    client.subscribe(topic, () => {
+                        log.debug("mqtt", "MQTT subscribed to topic");
+                    });
+                } catch (e) {
+                    client.end();
+                    clearTimeout(timeoutID);
+                    reject(new Error("Cannot subscribe topic"));
+                }
+            });
+
+            client.on("error", (error) => {
+                client.end();
+                clearTimeout(timeoutID);
+                reject(error);
+            });
+
+            client.on("message", (messageTopic, message) => {
+                if (messageTopic === topic) {
+                    client.end();
+                    clearTimeout(timeoutID);
+                    resolve(message.toString("utf8"));
+                }
+            });
+
+        });
+    }
+}
+
+module.exports = {
+    MqttMonitorType,
+};
diff --git a/server/monitor-types/rabbitmq.js b/server/monitor-types/rabbitmq.js
new file mode 100644
index 0000000..165a0ed
--- /dev/null
+++ b/server/monitor-types/rabbitmq.js
@@ -0,0 +1,67 @@
+const { MonitorType } = require("./monitor-type");
+const { log, UP, DOWN } = require("../../src/util");
+const { axiosAbortSignal } = require("../util-server");
+const axios = require("axios");
+
+class RabbitMqMonitorType extends MonitorType {
+    name = "rabbitmq";
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, server) {
+        let baseUrls = [];
+        try {
+            baseUrls = JSON.parse(monitor.rabbitmqNodes);
+        } catch (error) {
+            throw new Error("Invalid RabbitMQ Nodes");
+        }
+
+        heartbeat.status = DOWN;
+        for (let baseUrl of baseUrls) {
+            try {
+                // Without a trailing slash, path in baseUrl will be removed. https://example.com/api -> https://example.com
+                if ( !baseUrl.endsWith("/") ) {
+                    baseUrl += "/";
+                }
+                const options = {
+                    // Do not start with slash, it will strip the trailing slash from baseUrl
+                    url: new URL("api/health/checks/alarms/", baseUrl).href,
+                    method: "get",
+                    timeout: monitor.timeout * 1000,
+                    headers: {
+                        "Accept": "application/json",
+                        "Authorization": "Basic " + Buffer.from(`${monitor.rabbitmqUsername || ""}:${monitor.rabbitmqPassword || ""}`).toString("base64"),
+                    },
+                    signal: axiosAbortSignal((monitor.timeout + 10) * 1000),
+                    // Capture reason for 503 status
+                    validateStatus: (status) => status === 200 || status === 503,
+                };
+                log.debug("monitor", `[${monitor.name}] Axios Request: ${JSON.stringify(options)}`);
+                const res = await axios.request(options);
+                log.debug("monitor", `[${monitor.name}] Axios Response: status=${res.status} body=${JSON.stringify(res.data)}`);
+                if (res.status === 200) {
+                    heartbeat.status = UP;
+                    heartbeat.msg = "OK";
+                    break;
+                } else if (res.status === 503) {
+                    heartbeat.msg = res.data.reason;
+                } else {
+                    heartbeat.msg = `${res.status} - ${res.statusText}`;
+                }
+            } catch (error) {
+                if (axios.isCancel(error)) {
+                    heartbeat.msg = "Request timed out";
+                    log.debug("monitor", `[${monitor.name}] Request timed out`);
+                } else {
+                    log.debug("monitor", `[${monitor.name}] Axios Error: ${JSON.stringify(error.message)}`);
+                    heartbeat.msg = error.message;
+                }
+            }
+        }
+    }
+}
+
+module.exports = {
+    RabbitMqMonitorType,
+};
diff --git a/server/monitor-types/real-browser-monitor-type.js b/server/monitor-types/real-browser-monitor-type.js
new file mode 100644
index 0000000..f1219af
--- /dev/null
+++ b/server/monitor-types/real-browser-monitor-type.js
@@ -0,0 +1,273 @@
+const { MonitorType } = require("./monitor-type");
+const { chromium } = require("playwright-core");
+const { UP, log } = require("../../src/util");
+const { Settings } = require("../settings");
+const commandExistsSync = require("command-exists").sync;
+const childProcess = require("child_process");
+const path = require("path");
+const Database = require("../database");
+const jwt = require("jsonwebtoken");
+const config = require("../config");
+const { RemoteBrowser } = require("../remote-browser");
+
+/**
+ * Cached instance of a browser
+ * @type {import ("playwright-core").Browser}
+ */
+let browser = null;
+
+let allowedList = [];
+let lastAutoDetectChromeExecutable = null;
+
+if (process.platform === "win32") {
+    allowedList.push(process.env.LOCALAPPDATA + "\\Google\\Chrome\\Application\\chrome.exe");
+    allowedList.push(process.env.PROGRAMFILES + "\\Google\\Chrome\\Application\\chrome.exe");
+    allowedList.push(process.env["ProgramFiles(x86)"] + "\\Google\\Chrome\\Application\\chrome.exe");
+
+    // Allow Chromium too
+    allowedList.push(process.env.LOCALAPPDATA + "\\Chromium\\Application\\chrome.exe");
+    allowedList.push(process.env.PROGRAMFILES + "\\Chromium\\Application\\chrome.exe");
+    allowedList.push(process.env["ProgramFiles(x86)"] + "\\Chromium\\Application\\chrome.exe");
+
+    // Allow MS Edge
+    allowedList.push(process.env["ProgramFiles(x86)"] + "\\Microsoft\\Edge\\Application\\msedge.exe");
+
+    // For Loop A to Z
+    for (let i = 65; i <= 90; i++) {
+        let drive = String.fromCharCode(i);
+        allowedList.push(drive + ":\\Program Files\\Google\\Chrome\\Application\\chrome.exe");
+        allowedList.push(drive + ":\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe");
+    }
+
+} else if (process.platform === "linux") {
+    allowedList = [
+        "chromium",
+        "chromium-browser",
+        "google-chrome",
+
+        "/usr/bin/chromium",
+        "/usr/bin/chromium-browser",
+        "/usr/bin/google-chrome",
+        "/snap/bin/chromium",           // Ubuntu
+    ];
+} else if (process.platform === "darwin") {
+    allowedList = [
+        "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
+        "/Applications/Chromium.app/Contents/MacOS/Chromium",
+    ];
+}
+
+/**
+ * Is the executable path allowed?
+ * @param {string} executablePath Path to executable
+ * @returns {Promise<boolean>} The executable is allowed?
+ */
+async function isAllowedChromeExecutable(executablePath) {
+    console.log(config.args);
+    if (config.args["allow-all-chrome-exec"] || process.env.UPTIME_KUMA_ALLOW_ALL_CHROME_EXEC === "1") {
+        return true;
+    }
+
+    // Check if the executablePath is in the list of allowed executables
+    return allowedList.includes(executablePath);
+}
+
+/**
+ * Get the current instance of the browser. If there isn't one, create
+ * it.
+ * @returns {Promise<import ("playwright-core").Browser>} The browser
+ */
+async function getBrowser() {
+    if (browser && browser.isConnected()) {
+        return browser;
+    } else {
+        let executablePath = await Settings.get("chromeExecutable");
+
+        executablePath = await prepareChromeExecutable(executablePath);
+
+        browser = await chromium.launch({
+            //headless: false,
+            executablePath,
+        });
+
+        return browser;
+    }
+}
+
+/**
+ * Get the current instance of the browser. If there isn't one, create it
+ * @param {integer} remoteBrowserID Path to executable
+ * @param {integer} userId User ID
+ * @returns {Promise<Browser>} The browser
+ */
+async function getRemoteBrowser(remoteBrowserID, userId) {
+    let remoteBrowser = await RemoteBrowser.get(remoteBrowserID, userId);
+    log.debug("MONITOR", `Using remote browser: ${remoteBrowser.name} (${remoteBrowser.id})`);
+    browser = await chromium.connect(remoteBrowser.url);
+    return browser;
+}
+
+/**
+ * Prepare the chrome executable path
+ * @param {string} executablePath Path to chrome executable
+ * @returns {Promise<string>} Executable path
+ */
+async function prepareChromeExecutable(executablePath) {
+    // Special code for using the playwright_chromium
+    if (typeof executablePath === "string" && executablePath.toLocaleLowerCase() === "#playwright_chromium") {
+        // Set to undefined = use playwright_chromium
+        executablePath = undefined;
+    } else if (!executablePath) {
+        if (process.env.UPTIME_KUMA_IS_CONTAINER) {
+            executablePath = "/usr/bin/chromium";
+
+            // Install chromium in container via apt install
+            if ( !commandExistsSync(executablePath)) {
+                await new Promise((resolve, reject) => {
+                    log.info("Chromium", "Installing Chromium...");
+                    let child = childProcess.exec("apt update && apt --yes --no-install-recommends install chromium fonts-indic fonts-noto fonts-noto-cjk");
+
+                    // On exit
+                    child.on("exit", (code) => {
+                        log.info("Chromium", "apt install chromium exited with code " + code);
+
+                        if (code === 0) {
+                            log.info("Chromium", "Installed Chromium");
+                            let version = childProcess.execSync(executablePath + " --version").toString("utf8");
+                            log.info("Chromium", "Chromium version: " + version);
+                            resolve();
+                        } else if (code === 100) {
+                            reject(new Error("Installing Chromium, please wait..."));
+                        } else {
+                            reject(new Error("apt install chromium failed with code " + code));
+                        }
+                    });
+                });
+            }
+
+        } else {
+            executablePath = findChrome(allowedList);
+        }
+    } else {
+        // User specified a path
+        // Check if the executablePath is in the list of allowed
+        if (!await isAllowedChromeExecutable(executablePath)) {
+            throw new Error("This Chromium executable path is not allowed by default. If you are sure this is safe, please add an environment variable UPTIME_KUMA_ALLOW_ALL_CHROME_EXEC=1 to allow it.");
+        }
+    }
+    return executablePath;
+}
+
+/**
+ * Find the chrome executable
+ * @param {any[]} executables Executables to search through
+ * @returns {any} Executable
+ * @throws Could not find executable
+ */
+function findChrome(executables) {
+    // Use the last working executable, so we don't have to search for it again
+    if (lastAutoDetectChromeExecutable) {
+        if (commandExistsSync(lastAutoDetectChromeExecutable)) {
+            return lastAutoDetectChromeExecutable;
+        }
+    }
+
+    for (let executable of executables) {
+        if (commandExistsSync(executable)) {
+            lastAutoDetectChromeExecutable = executable;
+            return executable;
+        }
+    }
+    throw new Error("Chromium not found, please specify Chromium executable path in the settings page.");
+}
+
+/**
+ * Reset chrome
+ * @returns {Promise<void>}
+ */
+async function resetChrome() {
+    if (browser) {
+        await browser.close();
+        browser = null;
+    }
+}
+
+/**
+ * Test if the chrome executable is valid and return the version
+ * @param {string} executablePath Path to executable
+ * @returns {Promise<string>} Chrome version
+ */
+async function testChrome(executablePath) {
+    try {
+        executablePath = await prepareChromeExecutable(executablePath);
+
+        log.info("Chromium", "Testing Chromium executable: " + executablePath);
+
+        const browser = await chromium.launch({
+            executablePath,
+        });
+        const version = browser.version();
+        await browser.close();
+        return version;
+    } catch (e) {
+        throw new Error(e.message);
+    }
+}
+// test remote browser
+/**
+ * @param {string} remoteBrowserURL Remote Browser URL
+ * @returns {Promise<boolean>} Returns if connection worked
+ */
+async function testRemoteBrowser(remoteBrowserURL) {
+    try {
+        const browser = await chromium.connect(remoteBrowserURL);
+        browser.version();
+        await browser.close();
+        return true;
+    } catch (e) {
+        throw new Error(e.message);
+    }
+}
+class RealBrowserMonitorType extends MonitorType {
+
+    name = "real-browser";
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, server) {
+        const browser = monitor.remote_browser ? await getRemoteBrowser(monitor.remote_browser, monitor.user_id) : await getBrowser();
+        const context = await browser.newContext();
+        const page = await context.newPage();
+
+        const res = await page.goto(monitor.url, {
+            waitUntil: "networkidle",
+            timeout: monitor.interval * 1000 * 0.8,
+        });
+
+        let filename = jwt.sign(monitor.id, server.jwtSecret) + ".png";
+
+        await page.screenshot({
+            path: path.join(Database.screenshotDir, filename),
+        });
+
+        await context.close();
+
+        if (res.status() >= 200 && res.status() < 400) {
+            heartbeat.status = UP;
+            heartbeat.msg = res.status();
+
+            const timing = res.request().timing();
+            heartbeat.ping = timing.responseEnd;
+        } else {
+            throw new Error(res.status() + "");
+        }
+    }
+}
+
+module.exports = {
+    RealBrowserMonitorType,
+    testChrome,
+    resetChrome,
+    testRemoteBrowser,
+};
diff --git a/server/monitor-types/snmp.js b/server/monitor-types/snmp.js
new file mode 100644
index 0000000..a1760fa
--- /dev/null
+++ b/server/monitor-types/snmp.js
@@ -0,0 +1,63 @@
+const { MonitorType } = require("./monitor-type");
+const { UP, log, evaluateJsonQuery } = require("../../src/util");
+const snmp = require("net-snmp");
+
+class SNMPMonitorType extends MonitorType {
+    name = "snmp";
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, _server) {
+        let session;
+        try {
+            const sessionOptions = {
+                port: monitor.port || "161",
+                retries: monitor.maxretries,
+                timeout: monitor.timeout * 1000,
+                version: snmp.Version[monitor.snmpVersion],
+            };
+            session = snmp.createSession(monitor.hostname, monitor.radiusPassword, sessionOptions);
+
+            // Handle errors during session creation
+            session.on("error", (error) => {
+                throw new Error(`Error creating SNMP session: ${error.message}`);
+            });
+
+            const varbinds = await new Promise((resolve, reject) => {
+                session.get([ monitor.snmpOid ], (error, varbinds) => {
+                    error ? reject(error) : resolve(varbinds);
+                });
+            });
+            log.debug("monitor", `SNMP: Received varbinds (Type: ${snmp.ObjectType[varbinds[0].type]} Value: ${varbinds[0].value})`);
+
+            if (varbinds.length === 0) {
+                throw new Error(`No varbinds returned from SNMP session (OID: ${monitor.snmpOid})`);
+            }
+
+            if (varbinds[0].type === snmp.ObjectType.NoSuchInstance) {
+                throw new Error(`The SNMP query returned that no instance exists for OID ${monitor.snmpOid}`);
+            }
+
+            // We restrict querying to one OID per monitor, therefore `varbinds[0]` will always contain the value we're interested in.
+            const value = varbinds[0].value;
+
+            const { status, response } = await evaluateJsonQuery(value, monitor.jsonPath, monitor.jsonPathOperator, monitor.expectedValue);
+
+            if (status) {
+                heartbeat.status = UP;
+                heartbeat.msg = `JSON query passes (comparing ${response} ${monitor.jsonPathOperator} ${monitor.expectedValue})`;
+            } else {
+                throw new Error(`JSON query does not pass (comparing ${response} ${monitor.jsonPathOperator} ${monitor.expectedValue})`);
+            }
+        } finally {
+            if (session) {
+                session.close();
+            }
+        }
+    }
+}
+
+module.exports = {
+    SNMPMonitorType,
+};
diff --git a/server/monitor-types/tailscale-ping.js b/server/monitor-types/tailscale-ping.js
new file mode 100644
index 0000000..8537651
--- /dev/null
+++ b/server/monitor-types/tailscale-ping.js
@@ -0,0 +1,77 @@
+const { MonitorType } = require("./monitor-type");
+const { UP } = require("../../src/util");
+const childProcessAsync = require("promisify-child-process");
+
+class TailscalePing extends MonitorType {
+    name = "tailscale-ping";
+
+    /**
+     * @inheritdoc
+     */
+    async check(monitor, heartbeat, _server) {
+        try {
+            let tailscaleOutput = await this.runTailscalePing(monitor.hostname, monitor.interval);
+            this.parseTailscaleOutput(tailscaleOutput, heartbeat);
+        } catch (err) {
+            // trigger log function somewhere to display a notification or alert to the user (but how?)
+            throw new Error(`Error checking Tailscale ping: ${err}`);
+        }
+    }
+
+    /**
+     * Runs the Tailscale ping command to the given URL.
+     * @param {string} hostname The hostname to ping.
+     * @param {number} interval Interval to send ping
+     * @returns {Promise<string>} A Promise that resolves to the output of the Tailscale ping command
+     * @throws Will throw an error if the command execution encounters any error.
+     */
+    async runTailscalePing(hostname, interval) {
+        let timeout = interval * 1000 * 0.8;
+        let res = await childProcessAsync.spawn("tailscale", [ "ping", "--c", "1", hostname ], {
+            timeout: timeout,
+            encoding: "utf8",
+        });
+        if (res.stderr && res.stderr.toString()) {
+            throw new Error(`Error in output: ${res.stderr.toString()}`);
+        }
+        if (res.stdout && res.stdout.toString()) {
+            return res.stdout.toString();
+        } else {
+            throw new Error("No output from Tailscale ping");
+        }
+    }
+
+    /**
+     * Parses the output of the Tailscale ping command to update the heartbeat.
+     * @param {string} tailscaleOutput The output of the Tailscale ping command.
+     * @param {object} heartbeat The heartbeat object to update.
+     * @returns {void}
+     * @throws Will throw an eror if the output contains any unexpected string.
+     */
+    parseTailscaleOutput(tailscaleOutput, heartbeat) {
+        let lines = tailscaleOutput.split("\n");
+
+        for (let line of lines) {
+            if (line.includes("pong from")) {
+                heartbeat.status = UP;
+                let time = line.split(" in ")[1].split(" ")[0];
+                heartbeat.ping = parseInt(time);
+                heartbeat.msg = "OK";
+                break;
+            } else if (line.includes("timed out")) {
+                throw new Error(`Ping timed out: "${line}"`);
+                // Immediately throws upon "timed out" message, the server is expected to re-call the check function
+            } else if (line.includes("no matching peer")) {
+                throw new Error(`Nonexistant or inaccessible due to ACLs: "${line}"`);
+            } else if (line.includes("is local Tailscale IP")) {
+                throw new Error(`Tailscale only works if used on other machines: "${line}"`);
+            } else if (line !== "") {
+                throw new Error(`Unexpected output: "${line}"`);
+            }
+        }
+    }
+}
+
+module.exports = {
+    TailscalePing,
+};
diff --git a/server/notification-providers/46elks.js b/server/notification-providers/46elks.js
new file mode 100644
index 0000000..4b15e9f
--- /dev/null
+++ b/server/notification-providers/46elks.js
@@ -0,0 +1,35 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Elks extends NotificationProvider {
+    name = "Elks";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api.46elks.com/a1/sms";
+
+        try {
+            let data = new URLSearchParams();
+            data.append("from", notification.elksFromNumber);
+            data.append("to", notification.elksToNumber );
+            data.append("message", msg);
+
+            const config = {
+                headers: {
+                    "Authorization": "Basic " + Buffer.from(`${notification.elksUsername}:${notification.elksAuthToken}`).toString("base64")
+                }
+            };
+
+            await axios.post(url, data, config);
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Elks;
diff --git a/server/notification-providers/alerta.js b/server/notification-providers/alerta.js
new file mode 100644
index 0000000..f9a273b
--- /dev/null
+++ b/server/notification-providers/alerta.js
@@ -0,0 +1,68 @@
+const NotificationProvider = require("./notification-provider");
+const { DOWN, UP } = require("../../src/util");
+const axios = require("axios");
+
+class Alerta extends NotificationProvider {
+    name = "alerta";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json;charset=UTF-8",
+                    "Authorization": "Key " + notification.alertaApiKey,
+                }
+            };
+            let data = {
+                environment: notification.alertaEnvironment,
+                severity: "critical",
+                correlate: [],
+                service: [ "UptimeKuma" ],
+                value: "Timeout",
+                tags: [ "uptimekuma" ],
+                attributes: {},
+                origin: "uptimekuma",
+                type: "exceptionAlert",
+            };
+
+            if (heartbeatJSON == null) {
+                let postData = Object.assign({
+                    event: "msg",
+                    text: msg,
+                    group: "uptimekuma-msg",
+                    resource: "Message",
+                }, data);
+
+                await axios.post(notification.alertaApiEndpoint, postData, config);
+            } else {
+                let datadup = Object.assign( {
+                    correlate: [ "service_up", "service_down" ],
+                    event: monitorJSON["type"],
+                    group: "uptimekuma-" + monitorJSON["type"],
+                    resource: monitorJSON["name"],
+                }, data );
+
+                if (heartbeatJSON["status"] === DOWN) {
+                    datadup.severity = notification.alertaAlertState; // critical
+                    datadup.text = "Service " + monitorJSON["type"] + " is down.";
+                    await axios.post(notification.alertaApiEndpoint, datadup, config);
+                } else if (heartbeatJSON["status"] === UP) {
+                    datadup.severity = notification.alertaRecoverState; // cleaned
+                    datadup.text = "Service " + monitorJSON["type"] + " is up.";
+                    await axios.post(notification.alertaApiEndpoint, datadup, config);
+                }
+            }
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = Alerta;
diff --git a/server/notification-providers/alertnow.js b/server/notification-providers/alertnow.js
new file mode 100644
index 0000000..4257ca9
--- /dev/null
+++ b/server/notification-providers/alertnow.js
@@ -0,0 +1,53 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { setting } = require("../util-server");
+const { getMonitorRelativeURL, UP, DOWN } = require("../../src/util");
+
+class AlertNow extends NotificationProvider {
+    name = "AlertNow";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let textMsg = "";
+            let status = "open";
+            let eventType = "ERROR";
+            let eventId = new Date().toISOString().slice(0, 10).replace(/-/g, "");
+
+            if (heartbeatJSON && heartbeatJSON.status === UP) {
+                textMsg = `[${heartbeatJSON.name}] ✅ Application is back online`;
+                status = "close";
+                eventType = "INFO";
+                eventId += `_${heartbeatJSON.name.replace(/\s/g, "")}`;
+            } else if (heartbeatJSON && heartbeatJSON.status === DOWN) {
+                textMsg = `[${heartbeatJSON.name}] 🔴 Application went down`;
+            }
+
+            textMsg += ` - ${msg}`;
+
+            const baseURL = await setting("primaryBaseURL");
+            if (baseURL && monitorJSON) {
+                textMsg += ` >> ${baseURL + getMonitorRelativeURL(monitorJSON.id)}`;
+            }
+
+            const data = {
+                "summary": textMsg,
+                "status": status,
+                "event_type": eventType,
+                "event_id": eventId,
+            };
+
+            await axios.post(notification.alertNowWebhookURL, data);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = AlertNow;
diff --git a/server/notification-providers/aliyun-sms.js b/server/notification-providers/aliyun-sms.js
new file mode 100644
index 0000000..ff38bd0
--- /dev/null
+++ b/server/notification-providers/aliyun-sms.js
@@ -0,0 +1,143 @@
+const NotificationProvider = require("./notification-provider");
+const { DOWN, UP } = require("../../src/util");
+const { default: axios } = require("axios");
+const Crypto = require("crypto");
+const qs = require("qs");
+
+class AliyunSMS extends NotificationProvider {
+    name = "AliyunSMS";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (heartbeatJSON != null) {
+                let msgBody = JSON.stringify({
+                    name: monitorJSON["name"],
+                    time: heartbeatJSON["time"],
+                    status: this.statusToString(heartbeatJSON["status"]),
+                    msg: heartbeatJSON["msg"],
+                });
+                if (await this.sendSms(notification, msgBody)) {
+                    return okMsg;
+                }
+            } else {
+                let msgBody = JSON.stringify({
+                    name: "",
+                    time: "",
+                    status: "",
+                    msg: msg,
+                });
+                if (await this.sendSms(notification, msgBody)) {
+                    return okMsg;
+                }
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Send the SMS notification
+     * @param {BeanModel} notification Notification details
+     * @param {string} msgbody Message template
+     * @returns {Promise<boolean>} True if successful else false
+     */
+    async sendSms(notification, msgbody) {
+        let params = {
+            PhoneNumbers: notification.phonenumber,
+            TemplateCode: notification.templateCode,
+            SignName: notification.signName,
+            TemplateParam: msgbody,
+            AccessKeyId: notification.accessKeyId,
+            Format: "JSON",
+            SignatureMethod: "HMAC-SHA1",
+            SignatureVersion: "1.0",
+            SignatureNonce: Math.random().toString(),
+            Timestamp: new Date().toISOString(),
+            Action: "SendSms",
+            Version: "2017-05-25",
+        };
+
+        params.Signature = this.sign(params, notification.secretAccessKey);
+        let config = {
+            method: "POST",
+            url: "http://dysmsapi.aliyuncs.com/",
+            headers: {
+                "Content-Type": "application/x-www-form-urlencoded",
+            },
+            data: qs.stringify(params),
+        };
+
+        let result = await axios(config);
+        if (result.data.Message === "OK") {
+            return true;
+        }
+
+        throw new Error(result.data.Message);
+    }
+
+    /**
+     * Aliyun request sign
+     * @param {object} param Parameters object to sign
+     * @param {string} AccessKeySecret Secret key to sign parameters with
+     * @returns {string} Base64 encoded request
+     */
+    sign(param, AccessKeySecret) {
+        let param2 = {};
+        let data = [];
+
+        let oa = Object.keys(param).sort();
+
+        for (let i = 0; i < oa.length; i++) {
+            let key = oa[i];
+            param2[key] = param[key];
+        }
+
+        // Escape more characters than encodeURIComponent does.
+        // For generating Aliyun signature, all characters except A-Za-z0-9~-._ are encoded.
+        // See https://help.aliyun.com/document_detail/315526.html
+        // This encoding methods as known as RFC 3986 (https://tools.ietf.org/html/rfc3986)
+        let moreEscapesTable = function (m) {
+            return {
+                "!": "%21",
+                "*": "%2A",
+                "'": "%27",
+                "(": "%28",
+                ")": "%29"
+            }[m];
+        };
+
+        for (let key in param2) {
+            let value = encodeURIComponent(param2[key]).replace(/[!*'()]/g, moreEscapesTable);
+            data.push(`${encodeURIComponent(key)}=${value}`);
+        }
+
+        let StringToSign = `POST&${encodeURIComponent("/")}&${encodeURIComponent(data.join("&"))}`;
+        return Crypto
+            .createHmac("sha1", `${AccessKeySecret}&`)
+            .update(Buffer.from(StringToSign))
+            .digest("base64");
+    }
+
+    /**
+     * Convert status constant to string
+     * @param {const} status The status constant
+     * @returns {string} Status
+     */
+    statusToString(status) {
+        switch (status) {
+            case DOWN:
+                return "DOWN";
+            case UP:
+                return "UP";
+            default:
+                return status;
+        }
+    }
+}
+
+module.exports = AliyunSMS;
diff --git a/server/notification-providers/apprise.js b/server/notification-providers/apprise.js
new file mode 100644
index 0000000..0f69821
--- /dev/null
+++ b/server/notification-providers/apprise.js
@@ -0,0 +1,37 @@
+const NotificationProvider = require("./notification-provider");
+const childProcessAsync = require("promisify-child-process");
+
+class Apprise extends NotificationProvider {
+    name = "apprise";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        const args = [ "-vv", "-b", msg, notification.appriseURL ];
+        if (notification.title) {
+            args.push("-t");
+            args.push(notification.title);
+        }
+        const s = await childProcessAsync.spawn("apprise", args, {
+            encoding: "utf8",
+        });
+
+        const output = (s.stdout) ? s.stdout.toString() : "ERROR: maybe apprise not found";
+
+        if (output) {
+
+            if (! output.includes("ERROR")) {
+                return okMsg;
+            }
+
+            throw new Error(output);
+        } else {
+            return "No output from apprise";
+        }
+    }
+}
+
+module.exports = Apprise;
diff --git a/server/notification-providers/bitrix24.js b/server/notification-providers/bitrix24.js
new file mode 100644
index 0000000..ba12126
--- /dev/null
+++ b/server/notification-providers/bitrix24.js
@@ -0,0 +1,31 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP } = require("../../src/util");
+
+class Bitrix24 extends NotificationProvider {
+    name = "Bitrix24";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const params = {
+                user_id: notification.bitrix24UserID,
+                message: "[B]Uptime Kuma[/B]",
+                "ATTACH[COLOR]": (heartbeatJSON ?? {})["status"] === UP ? "#b73419" : "#67b518",
+                "ATTACH[BLOCKS][0][MESSAGE]": msg
+            };
+
+            await axios.get(`${notification.bitrix24WebhookURL}/im.notify.system.add.json`, { params });
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Bitrix24;
diff --git a/server/notification-providers/call-me-bot.js b/server/notification-providers/call-me-bot.js
new file mode 100644
index 0000000..daa9ccd
--- /dev/null
+++ b/server/notification-providers/call-me-bot.js
@@ -0,0 +1,23 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class CallMeBot extends NotificationProvider {
+    name = "CallMeBot";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        try {
+            const url = new URL(notification.callMeBotEndpoint);
+            url.searchParams.set("text", msg);
+            await axios.get(url.toString());
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = CallMeBot;
diff --git a/server/notification-providers/cellsynt.js b/server/notification-providers/cellsynt.js
new file mode 100644
index 0000000..e842237
--- /dev/null
+++ b/server/notification-providers/cellsynt.js
@@ -0,0 +1,39 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Cellsynt extends NotificationProvider {
+    name = "Cellsynt";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const data = {
+            // docs at https://www.cellsynt.com/en/sms/api-integration
+            params: {
+                "username": notification.cellsyntLogin,
+                "password": notification.cellsyntPassword,
+                "destination": notification.cellsyntDestination,
+                "text": msg.replace(/[^\x00-\x7F]/g, ""),
+                "originatortype": notification.cellsyntOriginatortype,
+                "originator": notification.cellsyntOriginator,
+                "allowconcat": notification.cellsyntAllowLongSMS ? 6 : 1
+            }
+        };
+        try {
+            const resp = await axios.post("https://se-1.cellsynt.net/sms.php", null, data);
+            if (resp.data == null ) {
+                throw new Error("Could not connect to Cellsynt, please try again.");
+            } else if (resp.data.includes("Error:")) {
+                resp.data = resp.data.replaceAll("Error:", "");
+                throw new Error(resp.data);
+            }
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Cellsynt;
diff --git a/server/notification-providers/clicksendsms.js b/server/notification-providers/clicksendsms.js
new file mode 100644
index 0000000..c090b7f
--- /dev/null
+++ b/server/notification-providers/clicksendsms.js
@@ -0,0 +1,45 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class ClickSendSMS extends NotificationProvider {
+    name = "clicksendsms";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://rest.clicksend.com/v3/sms/send";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "Authorization": "Basic " + Buffer.from(notification.clicksendsmsLogin + ":" + notification.clicksendsmsPassword).toString("base64"),
+                    "Accept": "text/json",
+                }
+            };
+            let data = {
+                messages: [
+                    {
+                        "body": msg.replace(/[^\x00-\x7F]/g, ""),
+                        "to": notification.clicksendsmsToNumber,
+                        "source": "uptime-kuma",
+                        "from": notification.clicksendsmsSenderName,
+                    }
+                ]
+            };
+            let resp = await axios.post(url, data, config);
+            if (resp.data.data.messages[0].status !== "SUCCESS") {
+                let error = "Something gone wrong. Api returned " + resp.data.data.messages[0].status + ".";
+                this.throwGeneralAxiosError(error);
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = ClickSendSMS;
diff --git a/server/notification-providers/dingding.js b/server/notification-providers/dingding.js
new file mode 100644
index 0000000..c66f270
--- /dev/null
+++ b/server/notification-providers/dingding.js
@@ -0,0 +1,101 @@
+const NotificationProvider = require("./notification-provider");
+const { DOWN, UP } = require("../../src/util");
+const { default: axios } = require("axios");
+const Crypto = require("crypto");
+
+class DingDing extends NotificationProvider {
+    name = "DingDing";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (heartbeatJSON != null) {
+                let params = {
+                    msgtype: "markdown",
+                    markdown: {
+                        title: `[${this.statusToString(heartbeatJSON["status"])}] ${monitorJSON["name"]}`,
+                        text: `## [${this.statusToString(heartbeatJSON["status"])}] ${monitorJSON["name"]} \n> ${heartbeatJSON["msg"]}\n> Time (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
+                    },
+                    "at": {
+                        "isAtAll": notification.mentioning === "everyone"
+                    }
+                };
+                if (await this.sendToDingDing(notification, params)) {
+                    return okMsg;
+                }
+            } else {
+                let params = {
+                    msgtype: "text",
+                    text: {
+                        content: msg
+                    }
+                };
+                if (await this.sendToDingDing(notification, params)) {
+                    return okMsg;
+                }
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Send message to DingDing
+     * @param {BeanModel} notification Notification to send
+     * @param {object} params Parameters of message
+     * @returns {Promise<boolean>} True if successful else false
+     */
+    async sendToDingDing(notification, params) {
+        let timestamp = Date.now();
+
+        let config = {
+            method: "POST",
+            headers: {
+                "Content-Type": "application/json",
+            },
+            url: `${notification.webHookUrl}&timestamp=${timestamp}&sign=${encodeURIComponent(this.sign(timestamp, notification.secretKey))}`,
+            data: JSON.stringify(params),
+        };
+
+        let result = await axios(config);
+        if (result.data.errmsg === "ok") {
+            return true;
+        }
+        throw new Error(result.data.errmsg);
+    }
+
+    /**
+     * DingDing sign
+     * @param {Date} timestamp Timestamp of message
+     * @param {string} secretKey Secret key to sign data with
+     * @returns {string} Base64 encoded signature
+     */
+    sign(timestamp, secretKey) {
+        return Crypto
+            .createHmac("sha256", Buffer.from(secretKey, "utf8"))
+            .update(Buffer.from(`${timestamp}\n${secretKey}`, "utf8"))
+            .digest("base64");
+    }
+
+    /**
+     * Convert status constant to string
+     * @param {const} status The status constant
+     * @returns {string} Status
+     */
+    statusToString(status) {
+        switch (status) {
+            case DOWN:
+                return "DOWN";
+            case UP:
+                return "UP";
+            default:
+                return status;
+        }
+    }
+}
+
+module.exports = DingDing;
diff --git a/server/notification-providers/discord.js b/server/notification-providers/discord.js
new file mode 100644
index 0000000..6a52f8f
--- /dev/null
+++ b/server/notification-providers/discord.js
@@ -0,0 +1,120 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class Discord extends NotificationProvider {
+    name = "discord";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const discordDisplayName = notification.discordUsername || "Uptime Kuma";
+            const webhookUrl = new URL(notification.discordWebhookUrl);
+            if (notification.discordChannelType === "postToThread") {
+                webhookUrl.searchParams.append("thread_id", notification.threadId);
+            }
+
+            // If heartbeatJSON is null, assume we're testing.
+            if (heartbeatJSON == null) {
+                let discordtestdata = {
+                    username: discordDisplayName,
+                    content: msg,
+                };
+
+                if (notification.discordChannelType === "createNewForumPost") {
+                    discordtestdata.thread_name = notification.postName;
+                }
+
+                await axios.post(webhookUrl.toString(), discordtestdata);
+                return okMsg;
+            }
+
+            // If heartbeatJSON is not null, we go into the normal alerting loop.
+            if (heartbeatJSON["status"] === DOWN) {
+                let discorddowndata = {
+                    username: discordDisplayName,
+                    embeds: [{
+                        title: "❌ Your service " + monitorJSON["name"] + " went down. ❌",
+                        color: 16711680,
+                        timestamp: heartbeatJSON["time"],
+                        fields: [
+                            {
+                                name: "Service Name",
+                                value: monitorJSON["name"],
+                            },
+                            {
+                                name: monitorJSON["type"] === "push" ? "Service Type" : "Service URL",
+                                value: this.extractAddress(monitorJSON),
+                            },
+                            {
+                                name: `Time (${heartbeatJSON["timezone"]})`,
+                                value: heartbeatJSON["localDateTime"],
+                            },
+                            {
+                                name: "Error",
+                                value: heartbeatJSON["msg"] == null ? "N/A" : heartbeatJSON["msg"],
+                            },
+                        ],
+                    }],
+                };
+                if (notification.discordChannelType === "createNewForumPost") {
+                    discorddowndata.thread_name = notification.postName;
+                }
+                if (notification.discordPrefixMessage) {
+                    discorddowndata.content = notification.discordPrefixMessage;
+                }
+
+                await axios.post(webhookUrl.toString(), discorddowndata);
+                return okMsg;
+
+            } else if (heartbeatJSON["status"] === UP) {
+                let discordupdata = {
+                    username: discordDisplayName,
+                    embeds: [{
+                        title: "✅ Your service " + monitorJSON["name"] + " is up! ✅",
+                        color: 65280,
+                        timestamp: heartbeatJSON["time"],
+                        fields: [
+                            {
+                                name: "Service Name",
+                                value: monitorJSON["name"],
+                            },
+                            {
+                                name: monitorJSON["type"] === "push" ? "Service Type" : "Service URL",
+                                value: this.extractAddress(monitorJSON),
+                            },
+                            {
+                                name: `Time (${heartbeatJSON["timezone"]})`,
+                                value: heartbeatJSON["localDateTime"],
+                            },
+                            {
+                                name: "Ping",
+                                value: heartbeatJSON["ping"] == null ? "N/A" : heartbeatJSON["ping"] + " ms",
+                            },
+                        ],
+                    }],
+                };
+
+                if (notification.discordChannelType === "createNewForumPost") {
+                    discordupdata.thread_name = notification.postName;
+                }
+
+                if (notification.discordPrefixMessage) {
+                    discordupdata.content = notification.discordPrefixMessage;
+                }
+
+                await axios.post(webhookUrl.toString(), discordupdata);
+                return okMsg;
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+}
+
+module.exports = Discord;
diff --git a/server/notification-providers/feishu.js b/server/notification-providers/feishu.js
new file mode 100644
index 0000000..cd5331d
--- /dev/null
+++ b/server/notification-providers/feishu.js
@@ -0,0 +1,104 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class Feishu extends NotificationProvider {
+    name = "Feishu";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (heartbeatJSON == null) {
+                let testdata = {
+                    msg_type: "text",
+                    content: {
+                        text: msg,
+                    },
+                };
+                await axios.post(notification.feishuWebHookUrl, testdata);
+                return okMsg;
+            }
+
+            if (heartbeatJSON["status"] === DOWN) {
+                let downdata = {
+                    msg_type: "interactive",
+                    card: {
+                        config: {
+                            update_multi: false,
+                            wide_screen_mode: true,
+                        },
+                        header: {
+                            title: {
+                                tag: "plain_text",
+                                content: "UptimeKuma Alert: [Down] " + monitorJSON["name"],
+                            },
+                            template: "red",
+                        },
+                        elements: [
+                            {
+                                tag: "div",
+                                text: {
+                                    tag: "lark_md",
+                                    content: getContent(heartbeatJSON),
+                                },
+                            }
+                        ]
+                    }
+                };
+                await axios.post(notification.feishuWebHookUrl, downdata);
+                return okMsg;
+            }
+
+            if (heartbeatJSON["status"] === UP) {
+                let updata = {
+                    msg_type: "interactive",
+                    card: {
+                        config: {
+                            update_multi: false,
+                            wide_screen_mode: true,
+                        },
+                        header: {
+                            title: {
+                                tag: "plain_text",
+                                content: "UptimeKuma Alert: [UP] " + monitorJSON["name"],
+                            },
+                            template: "green",
+                        },
+                        elements: [
+                            {
+                                tag: "div",
+                                text: {
+                                    tag: "lark_md",
+                                    content: getContent(heartbeatJSON),
+                                },
+                            },
+                        ]
+                    }
+                };
+                await axios.post(notification.feishuWebHookUrl, updata);
+                return okMsg;
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+/**
+ * Get content
+ * @param {?object} heartbeatJSON Heartbeat details (For Up/Down only)
+ * @returns {string} Return Successful Message
+ */
+function getContent(heartbeatJSON) {
+    return [
+        "**Message**: " + heartbeatJSON["msg"],
+        "**Ping**: " + (heartbeatJSON["ping"] == null ? "N/A" : heartbeatJSON["ping"] + " ms"),
+        `**Time (${heartbeatJSON["timezone"]})**: ${heartbeatJSON["localDateTime"]}`
+    ].join("\n");
+}
+
+module.exports = Feishu;
diff --git a/server/notification-providers/flashduty.js b/server/notification-providers/flashduty.js
new file mode 100644
index 0000000..c340ed0
--- /dev/null
+++ b/server/notification-providers/flashduty.js
@@ -0,0 +1,108 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN, getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+const successMessage = "Sent Successfully.";
+
+class FlashDuty extends NotificationProvider {
+    name = "FlashDuty";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        try {
+            if (heartbeatJSON == null) {
+                const title = "Uptime Kuma Alert";
+                const monitor = {
+                    type: "ping",
+                    url: msg,
+                    name: "https://flashcat.cloud"
+                };
+                return this.postNotification(notification, title, msg, monitor);
+            }
+
+            if (heartbeatJSON.status === UP) {
+                const title = "Uptime Kuma Monitor ✅ Up";
+
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, "Ok");
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                const title = "Uptime Kuma Monitor 🔴 Down";
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, notification.flashdutySeverity);
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Generate a monitor url from the monitors infomation
+     * @param {object} monitorInfo Monitor details
+     * @returns {string|undefined} Monitor URL
+     */
+    genMonitorUrl(monitorInfo) {
+        if (monitorInfo.type === "port" && monitorInfo.port) {
+            return monitorInfo.hostname + ":" + monitorInfo.port;
+        }
+        if (monitorInfo.hostname != null) {
+            return monitorInfo.hostname;
+        }
+        return monitorInfo.url;
+    }
+
+    /**
+     * Send the message
+     * @param {BeanModel} notification Message title
+     * @param {string} title Message
+     * @param {string} body Message
+     * @param {object} monitorInfo Monitor details
+     * @param {string} eventStatus Monitor status (Info, Warning, Critical, Ok)
+     * @returns {string} Success message
+     */
+    async postNotification(notification, title, body, monitorInfo, eventStatus) {
+        let labels = {
+            resource: this.genMonitorUrl(monitorInfo),
+            check: monitorInfo.name,
+        };
+        if (monitorInfo.tags && monitorInfo.tags.length > 0) {
+            for (let tag of monitorInfo.tags) {
+                labels[tag.name] = tag.value;
+            }
+        }
+        const options = {
+            method: "POST",
+            url: "https://api.flashcat.cloud/event/push/alert/standard?integration_key=" + notification.flashdutyIntegrationKey,
+            headers: { "Content-Type": "application/json" },
+            data: {
+                description: `[${title}] [${monitorInfo.name}] ${body}`,
+                title,
+                event_status: eventStatus || "Info",
+                alert_key: String(monitorInfo.id) || Math.random().toString(36).substring(7),
+                labels,
+            }
+        };
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorInfo) {
+            options.client = "Uptime Kuma";
+            options.client_url = baseURL + getMonitorRelativeURL(monitorInfo.id);
+        }
+
+        let result = await axios.request(options);
+        if (result.status == null) {
+            throw new Error("FlashDuty notification failed with invalid response!");
+        }
+        if (result.status < 200 || result.status >= 300) {
+            throw new Error("FlashDuty notification failed with status code " + result.status);
+        }
+        if (result.statusText != null) {
+            return "FlashDuty notification succeed: " + result.statusText;
+        }
+
+        return successMessage;
+    }
+}
+
+module.exports = FlashDuty;
diff --git a/server/notification-providers/freemobile.js b/server/notification-providers/freemobile.js
new file mode 100644
index 0000000..4de45ac
--- /dev/null
+++ b/server/notification-providers/freemobile.js
@@ -0,0 +1,27 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class FreeMobile extends NotificationProvider {
+    name = "FreeMobile";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            await axios.post(`https://smsapi.free-mobile.fr/sendmsg?msg=${encodeURIComponent(msg.replace("🔴", "⛔️"))}`, {
+                "user": notification.freemobileUser,
+                "pass": notification.freemobilePass,
+            });
+
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = FreeMobile;
diff --git a/server/notification-providers/goalert.js b/server/notification-providers/goalert.js
new file mode 100644
index 0000000..847c6a0
--- /dev/null
+++ b/server/notification-providers/goalert.js
@@ -0,0 +1,36 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP } = require("../../src/util");
+
+class GoAlert extends NotificationProvider {
+    name = "GoAlert";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let data = {
+                summary: msg,
+            };
+            if (heartbeatJSON != null && heartbeatJSON["status"] === UP) {
+                data["action"] = "close";
+            }
+            let headers = {
+                "Content-Type": "multipart/form-data",
+            };
+            let config = {
+                headers: headers
+            };
+            await axios.post(`${notification.goAlertBaseURL}/api/v2/generic/incoming?token=${notification.goAlertToken}`, data, config);
+            return okMsg;
+        } catch (error) {
+            let msg = (error.response.data) ? error.response.data : "Error without response";
+            throw new Error(msg);
+        }
+    }
+}
+
+module.exports = GoAlert;
diff --git a/server/notification-providers/google-chat.js b/server/notification-providers/google-chat.js
new file mode 100644
index 0000000..0b72fea
--- /dev/null
+++ b/server/notification-providers/google-chat.js
@@ -0,0 +1,94 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { setting } = require("../util-server");
+const { getMonitorRelativeURL, UP } = require("../../src/util");
+
+class GoogleChat extends NotificationProvider {
+    name = "GoogleChat";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            // Google Chat message formatting: https://developers.google.com/chat/api/guides/message-formats/basic
+
+            let chatHeader = {
+                title: "Uptime Kuma Alert",
+            };
+
+            if (monitorJSON && heartbeatJSON) {
+                chatHeader["title"] =
+                    heartbeatJSON["status"] === UP
+                        ? `✅ ${monitorJSON["name"]} is back online`
+                        : `🔴 ${monitorJSON["name"]} went down`;
+            }
+
+            // always show msg
+            let sectionWidgets = [
+                {
+                    textParagraph: {
+                        text: `<b>Message:</b>\n${msg}`,
+                    },
+                },
+            ];
+
+            // add time if available
+            if (heartbeatJSON) {
+                sectionWidgets.push({
+                    textParagraph: {
+                        text: `<b>Time (${heartbeatJSON["timezone"]}):</b>\n${heartbeatJSON["localDateTime"]}`,
+                    },
+                });
+            }
+
+            // add button for monitor link if available
+            const baseURL = await setting("primaryBaseURL");
+            if (baseURL) {
+                const urlPath = monitorJSON ? getMonitorRelativeURL(monitorJSON.id) : "/";
+                sectionWidgets.push({
+                    buttonList: {
+                        buttons: [
+                            {
+                                text: "Visit Uptime Kuma",
+                                onClick: {
+                                    openLink: {
+                                        url: baseURL + urlPath,
+                                    },
+                                },
+                            },
+                        ],
+                    },
+                });
+            }
+
+            let chatSections = [
+                {
+                    widgets: sectionWidgets,
+                },
+            ];
+
+            // construct json data
+            let data = {
+                cardsV2: [
+                    {
+                        card: {
+                            header: chatHeader,
+                            sections: chatSections,
+                        },
+                    },
+                ],
+            };
+
+            await axios.post(notification.googleChatWebhookURL, data);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = GoogleChat;
diff --git a/server/notification-providers/gorush.js b/server/notification-providers/gorush.js
new file mode 100644
index 0000000..ba9d470
--- /dev/null
+++ b/server/notification-providers/gorush.js
@@ -0,0 +1,44 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Gorush extends NotificationProvider {
+    name = "gorush";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        let platformMapping = {
+            "ios": 1,
+            "android": 2,
+            "huawei": 3,
+        };
+
+        try {
+            let data = {
+                "notifications": [
+                    {
+                        "tokens": [ notification.gorushDeviceToken ],
+                        "platform": platformMapping[notification.gorushPlatform],
+                        "message": msg,
+                        // Optional
+                        "title": notification.gorushTitle,
+                        "priority": notification.gorushPriority,
+                        "retry": parseInt(notification.gorushRetry) || 0,
+                        "topic": notification.gorushTopic,
+                    }
+                ]
+            };
+            let config = {};
+
+            await axios.post(`${notification.gorushServerURL}/api/push`, data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Gorush;
diff --git a/server/notification-providers/gotify.js b/server/notification-providers/gotify.js
new file mode 100644
index 0000000..a52ef51
--- /dev/null
+++ b/server/notification-providers/gotify.js
@@ -0,0 +1,31 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Gotify extends NotificationProvider {
+    name = "gotify";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (notification.gotifyserverurl && notification.gotifyserverurl.endsWith("/")) {
+                notification.gotifyserverurl = notification.gotifyserverurl.slice(0, -1);
+            }
+            await axios.post(`${notification.gotifyserverurl}/message?token=${notification.gotifyapplicationToken}`, {
+                "message": msg,
+                "priority": notification.gotifyPriority || 8,
+                "title": "Uptime-Kuma",
+            });
+
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Gotify;
diff --git a/server/notification-providers/grafana-oncall.js b/server/notification-providers/grafana-oncall.js
new file mode 100644
index 0000000..e93c77c
--- /dev/null
+++ b/server/notification-providers/grafana-oncall.js
@@ -0,0 +1,51 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class GrafanaOncall extends NotificationProvider {
+    name = "GrafanaOncall";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        if (!notification.GrafanaOncallURL) {
+            throw new Error("GrafanaOncallURL cannot be empty");
+        }
+
+        try {
+            if (heartbeatJSON === null) {
+                let grafanaupdata = {
+                    title: "General notification",
+                    message: msg,
+                    state: "alerting",
+                };
+                await axios.post(notification.GrafanaOncallURL, grafanaupdata);
+                return okMsg;
+            } else if (heartbeatJSON["status"] === DOWN) {
+                let grafanadowndata = {
+                    title: monitorJSON["name"] + " is down",
+                    message: heartbeatJSON["msg"],
+                    state: "alerting",
+                };
+                await axios.post(notification.GrafanaOncallURL, grafanadowndata);
+                return okMsg;
+            } else if (heartbeatJSON["status"] === UP) {
+                let grafanaupdata = {
+                    title: monitorJSON["name"] + " is up",
+                    message: heartbeatJSON["msg"],
+                    state: "ok",
+                };
+                await axios.post(notification.GrafanaOncallURL, grafanaupdata);
+                return okMsg;
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = GrafanaOncall;
diff --git a/server/notification-providers/gtx-messaging.js b/server/notification-providers/gtx-messaging.js
new file mode 100644
index 0000000..1ff97d1
--- /dev/null
+++ b/server/notification-providers/gtx-messaging.js
@@ -0,0 +1,33 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class GtxMessaging extends NotificationProvider {
+    name = "gtxmessaging";
+
+    /**
+     * @inheritDoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        // The UP/DOWN symbols will be replaced with `???` by gtx-messaging
+        const text = msg.replaceAll("🔴 ", "").replaceAll("✅ ", "");
+
+        try {
+            const data = new URLSearchParams();
+            data.append("from", notification.gtxMessagingFrom.trim());
+            data.append("to", notification.gtxMessagingTo.trim());
+            data.append("text", text);
+
+            const url = `https://rest.gtx-messaging.net/smsc/sendsms/${notification.gtxMessagingApiKey}/json`;
+
+            await axios.post(url, data);
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = GtxMessaging;
diff --git a/server/notification-providers/heii-oncall.js b/server/notification-providers/heii-oncall.js
new file mode 100644
index 0000000..20b53e6
--- /dev/null
+++ b/server/notification-providers/heii-oncall.js
@@ -0,0 +1,52 @@
+const { UP, DOWN, getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+class HeiiOnCall extends NotificationProvider {
+    name = "HeiiOnCall";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const payload = heartbeatJSON || {};
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorJSON) {
+            payload["url"] = baseURL + getMonitorRelativeURL(monitorJSON.id);
+        }
+
+        const config = {
+            headers: {
+                Accept: "application/json",
+                "Content-Type": "application/json",
+                Authorization: "Bearer " + notification.heiiOnCallApiKey,
+            },
+        };
+        const heiiUrl = `https://heiioncall.com/triggers/${notification.heiiOnCallTriggerId}/`;
+        // docs https://heiioncall.com/docs#manual-triggers
+        try {
+            if (!heartbeatJSON) {
+                // Testing or general notification like certificate expiry
+                payload["msg"] = msg;
+                await axios.post(heiiUrl + "alert", payload, config);
+                return okMsg;
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                await axios.post(heiiUrl + "alert", payload, config);
+                return okMsg;
+            }
+            if (heartbeatJSON.status === UP) {
+                await axios.post(heiiUrl + "resolve", payload, config);
+                return okMsg;
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = HeiiOnCall;
diff --git a/server/notification-providers/home-assistant.js b/server/notification-providers/home-assistant.js
new file mode 100644
index 0000000..4536b2a
--- /dev/null
+++ b/server/notification-providers/home-assistant.js
@@ -0,0 +1,45 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+const defaultNotificationService = "notify";
+
+class HomeAssistant extends NotificationProvider {
+    name = "HomeAssistant";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        const notificationService = notification?.notificationService || defaultNotificationService;
+
+        try {
+            await axios.post(
+                `${notification.homeAssistantUrl.trim().replace(/\/*$/, "")}/api/services/notify/${notificationService}`,
+                {
+                    title: "Uptime Kuma",
+                    message: msg,
+                    ...(notificationService !== "persistent_notification" && { data: {
+                        name: monitorJSON?.name,
+                        status: heartbeatJSON?.status,
+                        channel: "Uptime Kuma",
+                        icon_url: "https://github.com/louislam/uptime-kuma/blob/master/public/icon.png?raw=true",
+                    } }),
+                },
+                {
+                    headers: {
+                        Authorization: `Bearer ${notification.longLivedAccessToken}`,
+                        "Content-Type": "application/json",
+                    },
+                }
+            );
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = HomeAssistant;
diff --git a/server/notification-providers/keep.js b/server/notification-providers/keep.js
new file mode 100644
index 0000000..aa65a86
--- /dev/null
+++ b/server/notification-providers/keep.js
@@ -0,0 +1,42 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Keep extends NotificationProvider {
+    name = "Keep";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let data = {
+                heartbeat: heartbeatJSON,
+                monitor: monitorJSON,
+                msg,
+            };
+            let config = {
+                headers: {
+                    "x-api-key": notification.webhookAPIKey,
+                    "content-type": "application/json",
+                },
+            };
+
+            let url = notification.webhookURL;
+
+            if (url.endsWith("/")) {
+                url = url.slice(0, -1);
+            }
+
+            let webhookURL = url + "/alerts/event/uptimekuma";
+
+            await axios.post(webhookURL, data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Keep;
diff --git a/server/notification-providers/kook.js b/server/notification-providers/kook.js
new file mode 100644
index 0000000..dab1951
--- /dev/null
+++ b/server/notification-providers/kook.js
@@ -0,0 +1,34 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Kook extends NotificationProvider {
+    name = "Kook";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://www.kookapp.cn/api/v3/message/create";
+
+        let data = {
+            target_id: notification.kookGuildID,
+            content: msg,
+        };
+        let config = {
+            headers: {
+                "Authorization": "Bot " + notification.kookBotToken,
+                "Content-Type": "application/json",
+            },
+        };
+        try {
+            await axios.post(url, data, config);
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Kook;
diff --git a/server/notification-providers/line.js b/server/notification-providers/line.js
new file mode 100644
index 0000000..57dc87e
--- /dev/null
+++ b/server/notification-providers/line.js
@@ -0,0 +1,69 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class Line extends NotificationProvider {
+    name = "line";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api.line.me/v2/bot/message/push";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "Authorization": "Bearer " + notification.lineChannelAccessToken
+                }
+            };
+            if (heartbeatJSON == null) {
+                let testMessage = {
+                    "to": notification.lineUserID,
+                    "messages": [
+                        {
+                            "type": "text",
+                            "text": "Test Successful!"
+                        }
+                    ]
+                };
+                await axios.post(url, testMessage, config);
+            } else if (heartbeatJSON["status"] === DOWN) {
+                let downMessage = {
+                    "to": notification.lineUserID,
+                    "messages": [
+                        {
+                            "type": "text",
+                            "text": "UptimeKuma Alert: [🔴 Down]\n" +
+                                "Name: " + monitorJSON["name"] + " \n" +
+                                heartbeatJSON["msg"] +
+                                `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
+                        }
+                    ]
+                };
+                await axios.post(url, downMessage, config);
+            } else if (heartbeatJSON["status"] === UP) {
+                let upMessage = {
+                    "to": notification.lineUserID,
+                    "messages": [
+                        {
+                            "type": "text",
+                            "text": "UptimeKuma Alert: [✅ Up]\n" +
+                                "Name: " + monitorJSON["name"] + " \n" +
+                                heartbeatJSON["msg"] +
+                                `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
+                        }
+                    ]
+                };
+                await axios.post(url, upMessage, config);
+            }
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Line;
diff --git a/server/notification-providers/linenotify.js b/server/notification-providers/linenotify.js
new file mode 100644
index 0000000..2622e3f
--- /dev/null
+++ b/server/notification-providers/linenotify.js
@@ -0,0 +1,52 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const qs = require("qs");
+const { DOWN, UP } = require("../../src/util");
+
+class LineNotify extends NotificationProvider {
+    name = "LineNotify";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://notify-api.line.me/api/notify";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/x-www-form-urlencoded",
+                    "Authorization": "Bearer " + notification.lineNotifyAccessToken
+                }
+            };
+            if (heartbeatJSON == null) {
+                let testMessage = {
+                    "message": msg,
+                };
+                await axios.post(url, qs.stringify(testMessage), config);
+            } else if (heartbeatJSON["status"] === DOWN) {
+                let downMessage = {
+                    "message": "\n[🔴 Down]\n" +
+                        "Name: " + monitorJSON["name"] + " \n" +
+                        heartbeatJSON["msg"] + "\n" +
+                        `Time (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
+                };
+                await axios.post(url, qs.stringify(downMessage), config);
+            } else if (heartbeatJSON["status"] === UP) {
+                let upMessage = {
+                    "message": "\n[✅ Up]\n" +
+                        "Name: " + monitorJSON["name"] + " \n" +
+                        heartbeatJSON["msg"] + "\n" +
+                        `Time (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
+                };
+                await axios.post(url, qs.stringify(upMessage), config);
+            }
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = LineNotify;
diff --git a/server/notification-providers/lunasea.js b/server/notification-providers/lunasea.js
new file mode 100644
index 0000000..787a704
--- /dev/null
+++ b/server/notification-providers/lunasea.js
@@ -0,0 +1,67 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class LunaSea extends NotificationProvider {
+    name = "lunasea";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://notify.lunasea.app/v1";
+
+        try {
+            const target = this.getTarget(notification);
+            if (heartbeatJSON == null) {
+                let testdata = {
+                    "title": "Uptime Kuma Alert",
+                    "body": msg,
+                };
+                await axios.post(`${url}/custom/${target}`, testdata);
+                return okMsg;
+            }
+
+            if (heartbeatJSON["status"] === DOWN) {
+                let downdata = {
+                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
+                    "body": "[🔴 Down] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
+                };
+                await axios.post(`${url}/custom/${target}`, downdata);
+                return okMsg;
+            }
+
+            if (heartbeatJSON["status"] === UP) {
+                let updata = {
+                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
+                    "body": "[✅ Up] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
+                };
+                await axios.post(`${url}/custom/${target}`, updata);
+                return okMsg;
+            }
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Generates the lunasea target to send the notification to
+     * @param {BeanModel} notification Notification details
+     * @returns {string} The target to send the notification to
+     */
+    getTarget(notification) {
+        if (notification.lunaseaTarget === "user") {
+            return "user/" + notification.lunaseaUserID;
+        }
+        return "device/" + notification.lunaseaDevice;
+
+    }
+}
+
+module.exports = LunaSea;
diff --git a/server/notification-providers/matrix.js b/server/notification-providers/matrix.js
new file mode 100644
index 0000000..805a494
--- /dev/null
+++ b/server/notification-providers/matrix.js
@@ -0,0 +1,48 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const Crypto = require("crypto");
+const { log } = require("../../src/util");
+
+class Matrix extends NotificationProvider {
+    name = "matrix";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        const size = 20;
+        const randomString = encodeURIComponent(
+            Crypto
+                .randomBytes(size)
+                .toString("base64")
+                .slice(0, size)
+        );
+
+        log.debug("notification", "Random String: " + randomString);
+
+        const roomId = encodeURIComponent(notification.internalRoomId);
+
+        log.debug("notification", "Matrix Room ID: " + roomId);
+
+        try {
+            let config = {
+                headers: {
+                    "Authorization": `Bearer ${notification.accessToken}`,
+                }
+            };
+            let data = {
+                "msgtype": "m.text",
+                "body": msg
+            };
+
+            await axios.put(`${notification.homeserverUrl}/_matrix/client/r0/rooms/${roomId}/send/m.room.message/${randomString}`, data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Matrix;
diff --git a/server/notification-providers/mattermost.js b/server/notification-providers/mattermost.js
new file mode 100644
index 0000000..9946d02
--- /dev/null
+++ b/server/notification-providers/mattermost.js
@@ -0,0 +1,110 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class Mattermost extends NotificationProvider {
+    name = "mattermost";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const mattermostUserName = notification.mattermostusername || "Uptime Kuma";
+            // If heartbeatJSON is null, assume non monitoring notification (Certificate warning) or testing.
+            if (heartbeatJSON == null) {
+                let mattermostTestData = {
+                    username: mattermostUserName,
+                    text: msg,
+                };
+                await axios.post(notification.mattermostWebhookUrl, mattermostTestData);
+                return okMsg;
+            }
+
+            let mattermostChannel;
+
+            if (typeof notification.mattermostchannel === "string") {
+                mattermostChannel = notification.mattermostchannel.toLowerCase();
+            }
+
+            const mattermostIconEmoji = notification.mattermosticonemo;
+            let mattermostIconEmojiOnline = "";
+            let mattermostIconEmojiOffline = "";
+
+            if (mattermostIconEmoji && typeof mattermostIconEmoji === "string") {
+                const emojiArray = mattermostIconEmoji.split(" ");
+                if (emojiArray.length >= 2) {
+                    mattermostIconEmojiOnline = emojiArray[0];
+                    mattermostIconEmojiOffline = emojiArray[1];
+                }
+            }
+            const mattermostIconUrl = notification.mattermosticonurl;
+            let iconEmoji = mattermostIconEmoji;
+            let statusField = {
+                short: false,
+                title: "Error",
+                value: heartbeatJSON.msg,
+            };
+            let statusText = "unknown";
+            let color = "#000000";
+            if (heartbeatJSON.status === DOWN) {
+                iconEmoji = mattermostIconEmojiOffline || mattermostIconEmoji;
+                statusField = {
+                    short: false,
+                    title: "Error",
+                    value: heartbeatJSON.msg,
+                };
+                statusText = "down.";
+                color = "#FF0000";
+            } else if (heartbeatJSON.status === UP) {
+                iconEmoji = mattermostIconEmojiOnline || mattermostIconEmoji;
+                statusField = {
+                    short: false,
+                    title: "Ping",
+                    value: heartbeatJSON.ping + "ms",
+                };
+                statusText = "up!";
+                color = "#32CD32";
+            }
+
+            let mattermostdata = {
+                username: monitorJSON.name + " " + mattermostUserName,
+                channel: mattermostChannel,
+                icon_emoji: iconEmoji,
+                icon_url: mattermostIconUrl,
+                attachments: [
+                    {
+                        fallback:
+                            "Your " +
+                            monitorJSON.pathName +
+                            " service went " +
+                            statusText,
+                        color: color,
+                        title:
+                            monitorJSON.pathName +
+                            " service went " +
+                            statusText,
+                        title_link: monitorJSON.url,
+                        fields: [
+                            statusField,
+                            {
+                                short: true,
+                                title: `Time (${heartbeatJSON["timezone"]})`,
+                                value: heartbeatJSON.localDateTime,
+                            },
+                        ],
+                    },
+                ],
+            };
+            await axios.post(notification.mattermostWebhookUrl, mattermostdata);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = Mattermost;
diff --git a/server/notification-providers/nostr.js b/server/notification-providers/nostr.js
new file mode 100644
index 0000000..8784738
--- /dev/null
+++ b/server/notification-providers/nostr.js
@@ -0,0 +1,122 @@
+const NotificationProvider = require("./notification-provider");
+const {
+    relayInit,
+    getPublicKey,
+    getEventHash,
+    getSignature,
+    nip04,
+    nip19
+} = require("nostr-tools");
+
+// polyfills for node versions
+const semver = require("semver");
+const nodeVersion = process.version;
+if (semver.lt(nodeVersion, "20.0.0")) {
+    // polyfills for node 18
+    global.crypto = require("crypto");
+    global.WebSocket = require("isomorphic-ws");
+} else {
+    // polyfills for node 20
+    global.WebSocket = require("isomorphic-ws");
+}
+
+class Nostr extends NotificationProvider {
+    name = "nostr";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        // All DMs should have same timestamp
+        const createdAt = Math.floor(Date.now() / 1000);
+
+        const senderPrivateKey = await this.getPrivateKey(notification.sender);
+        const senderPublicKey = getPublicKey(senderPrivateKey);
+        const recipientsPublicKeys = await this.getPublicKeys(notification.recipients);
+
+        // Create NIP-04 encrypted direct message event for each recipient
+        const events = [];
+        for (const recipientPublicKey of recipientsPublicKeys) {
+            const ciphertext = await nip04.encrypt(senderPrivateKey, recipientPublicKey, msg);
+            let event = {
+                kind: 4,
+                pubkey: senderPublicKey,
+                created_at: createdAt,
+                tags: [[ "p", recipientPublicKey ]],
+                content: ciphertext,
+            };
+            event.id = getEventHash(event);
+            event.sig = getSignature(event, senderPrivateKey);
+            events.push(event);
+        }
+
+        // Publish events to each relay
+        const relays = notification.relays.split("\n");
+        let successfulRelays = 0;
+
+        // Connect to each relay
+        for (const relayUrl of relays) {
+            const relay = relayInit(relayUrl);
+            try {
+                await relay.connect();
+                successfulRelays++;
+
+                // Publish events
+                for (const event of events) {
+                    relay.publish(event);
+                }
+            } catch (error) {
+                continue;
+            } finally {
+                relay.close();
+            }
+        }
+
+        // Report success or failure
+        if (successfulRelays === 0) {
+            throw Error("Failed to connect to any relays.");
+        }
+        return `${successfulRelays}/${relays.length} relays connected.`;
+    }
+
+    /**
+     * Get the private key for the sender
+     * @param {string} sender Sender to retrieve key for
+     * @returns {nip19.DecodeResult} Private key
+     */
+    async getPrivateKey(sender) {
+        try {
+            const senderDecodeResult = await nip19.decode(sender);
+            const { data } = senderDecodeResult;
+            return data;
+        } catch (error) {
+            throw new Error(`Failed to get private key: ${error.message}`);
+        }
+    }
+
+    /**
+     * Get public keys for recipients
+     * @param {string} recipients Newline delimited list of recipients
+     * @returns {Promise<nip19.DecodeResult[]>} Public keys
+     */
+    async getPublicKeys(recipients) {
+        const recipientsList = recipients.split("\n");
+        const publicKeys = [];
+        for (const recipient of recipientsList) {
+            try {
+                const recipientDecodeResult = await nip19.decode(recipient);
+                const { type, data } = recipientDecodeResult;
+                if (type === "npub") {
+                    publicKeys.push(data);
+                } else {
+                    throw new Error("not an npub");
+                }
+            } catch (error) {
+                throw new Error(`Error decoding recipient: ${error}`);
+            }
+        }
+        return publicKeys;
+    }
+}
+
+module.exports = Nostr;
diff --git a/server/notification-providers/notification-provider.js b/server/notification-providers/notification-provider.js
new file mode 100644
index 0000000..b9fb3d8
--- /dev/null
+++ b/server/notification-providers/notification-provider.js
@@ -0,0 +1,73 @@
+class NotificationProvider {
+
+    /**
+     * Notification Provider Name
+     * @type {string}
+     */
+    name = undefined;
+
+    /**
+     * Send a notification
+     * @param {BeanModel} notification Notification to send
+     * @param {string} msg General Message
+     * @param {?object} monitorJSON Monitor details (For Up/Down only)
+     * @param {?object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @returns {Promise<string>} Return Successful Message
+     * @throws Error with fail msg
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        throw new Error("Have to override Notification.send(...)");
+    }
+
+    /**
+     * Extracts the address from a monitor JSON object based on its type.
+     * @param {?object} monitorJSON Monitor details (For Up/Down only)
+     * @returns {string} The extracted address based on the monitor type.
+     */
+    extractAddress(monitorJSON) {
+        if (!monitorJSON) {
+            return "";
+        }
+        switch (monitorJSON["type"]) {
+            case "push":
+                return "Heartbeat";
+            case "ping":
+                return monitorJSON["hostname"];
+            case "port":
+            case "dns":
+            case "gamedig":
+            case "steam":
+                if (monitorJSON["port"]) {
+                    return monitorJSON["hostname"] + ":" + monitorJSON["port"];
+                }
+                return monitorJSON["hostname"];
+            default:
+                if (![ "https://", "http://", "" ].includes(monitorJSON["url"])) {
+                    return monitorJSON["url"];
+                }
+                return "";
+        }
+    }
+
+    /**
+     * Throws an error
+     * @param {any} error The error to throw
+     * @returns {void}
+     * @throws {any} The error specified
+     */
+    throwGeneralAxiosError(error) {
+        let msg = "Error: " + error + " ";
+
+        if (error.response && error.response.data) {
+            if (typeof error.response.data === "string") {
+                msg += error.response.data;
+            } else {
+                msg += JSON.stringify(error.response.data);
+            }
+        }
+
+        throw new Error(msg);
+    }
+}
+
+module.exports = NotificationProvider;
diff --git a/server/notification-providers/ntfy.js b/server/notification-providers/ntfy.js
new file mode 100644
index 0000000..ad1d39f
--- /dev/null
+++ b/server/notification-providers/ntfy.js
@@ -0,0 +1,83 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class Ntfy extends NotificationProvider {
+    name = "ntfy";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let headers = {};
+            if (notification.ntfyAuthenticationMethod === "usernamePassword") {
+                headers = {
+                    "Authorization": "Basic " + Buffer.from(notification.ntfyusername + ":" + notification.ntfypassword).toString("base64"),
+                };
+            } else if (notification.ntfyAuthenticationMethod === "accessToken") {
+                headers = {
+                    "Authorization": "Bearer " + notification.ntfyaccesstoken,
+                };
+            }
+            // If heartbeatJSON is null, assume non monitoring notification (Certificate warning) or testing.
+            if (heartbeatJSON == null) {
+                let ntfyTestData = {
+                    "topic": notification.ntfytopic,
+                    "title": (monitorJSON?.name || notification.ntfytopic) + " [Uptime-Kuma]",
+                    "message": msg,
+                    "priority": notification.ntfyPriority,
+                    "tags": [ "test_tube" ],
+                };
+                await axios.post(notification.ntfyserverurl, ntfyTestData, { headers: headers });
+                return okMsg;
+            }
+            let tags = [];
+            let status = "unknown";
+            let priority = notification.ntfyPriority || 4;
+            if ("status" in heartbeatJSON) {
+                if (heartbeatJSON.status === DOWN) {
+                    tags = [ "red_circle" ];
+                    status = "Down";
+                    // if priority is not 5, increase priority for down alerts
+                    priority = priority === 5 ? priority : priority + 1;
+                } else if (heartbeatJSON["status"] === UP) {
+                    tags = [ "green_circle" ];
+                    status = "Up";
+                }
+            }
+            let data = {
+                "topic": notification.ntfytopic,
+                "message": heartbeatJSON.msg,
+                "priority": priority,
+                "title": monitorJSON.name + " " + status + " [Uptime-Kuma]",
+                "tags": tags,
+            };
+
+            if (monitorJSON.url && monitorJSON.url !== "https://") {
+                data.actions = [
+                    {
+                        "action": "view",
+                        "label": "Open " + monitorJSON.name,
+                        "url": monitorJSON.url,
+                    },
+                ];
+            }
+
+            if (notification.ntfyIcon) {
+                data.icon = notification.ntfyIcon;
+            }
+
+            await axios.post(notification.ntfyserverurl, data, { headers: headers });
+
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Ntfy;
diff --git a/server/notification-providers/octopush.js b/server/notification-providers/octopush.js
new file mode 100644
index 0000000..7576e0a
--- /dev/null
+++ b/server/notification-providers/octopush.js
@@ -0,0 +1,76 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Octopush extends NotificationProvider {
+    name = "octopush";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const urlV2 = "https://api.octopush.com/v1/public/sms-campaign/send";
+        const urlV1 = "https://www.octopush-dm.com/api/sms/json";
+
+        try {
+        // Default - V2
+            if (notification.octopushVersion === "2" || !notification.octopushVersion) {
+                let config = {
+                    headers: {
+                        "api-key": notification.octopushAPIKey,
+                        "api-login": notification.octopushLogin,
+                        "cache-control": "no-cache"
+                    }
+                };
+                let data = {
+                    "recipients": [
+                        {
+                            "phone_number": notification.octopushPhoneNumber
+                        }
+                    ],
+                    //octopush not supporting non ascii char
+                    "text": msg.replace(/[^\x00-\x7F]/g, ""),
+                    "type": notification.octopushSMSType,
+                    "purpose": "alert",
+                    "sender": notification.octopushSenderName
+                };
+                await axios.post(urlV2, data, config);
+            } else if (notification.octopushVersion === "1") {
+                let data = {
+                    "user_login": notification.octopushDMLogin,
+                    "api_key": notification.octopushDMAPIKey,
+                    "sms_recipients": notification.octopushDMPhoneNumber,
+                    "sms_sender": notification.octopushDMSenderName,
+                    "sms_type": (notification.octopushDMSMSType === "sms_premium") ? "FR" : "XXX",
+                    "transactional": "1",
+                    //octopush not supporting non ascii char
+                    "sms_text": msg.replace(/[^\x00-\x7F]/g, ""),
+                };
+
+                let config = {
+                    headers: {
+                        "cache-control": "no-cache"
+                    },
+                    params: data
+                };
+
+                // V1 API returns 200 even on error so we must check
+                // response data
+                let response = await axios.post(urlV1, {}, config);
+                if ("error_code" in response.data) {
+                    if (response.data.error_code !== "000") {
+                        this.throwGeneralAxiosError(`Octopush error ${JSON.stringify(response.data)}`);
+                    }
+                }
+            } else {
+                throw new Error("Unknown Octopush version!");
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Octopush;
diff --git a/server/notification-providers/onebot.js b/server/notification-providers/onebot.js
new file mode 100644
index 0000000..b04794d
--- /dev/null
+++ b/server/notification-providers/onebot.js
@@ -0,0 +1,48 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class OneBot extends NotificationProvider {
+    name = "OneBot";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let url = notification.httpAddr;
+            if (!url.startsWith("http")) {
+                url = "http://" + url;
+            }
+            if (!url.endsWith("/")) {
+                url += "/";
+            }
+            url += "send_msg";
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "Authorization": "Bearer " + notification.accessToken,
+                }
+            };
+            let pushText = "UptimeKuma Alert: " + msg;
+            let data = {
+                "auto_escape": true,
+                "message": pushText,
+            };
+            if (notification.msgType === "group") {
+                data["message_type"] = "group";
+                data["group_id"] = notification.recieverId;
+            } else {
+                data["message_type"] = "private";
+                data["user_id"] = notification.recieverId;
+            }
+            await axios.post(url, data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = OneBot;
diff --git a/server/notification-providers/onesender.js b/server/notification-providers/onesender.js
new file mode 100644
index 0000000..4a33931
--- /dev/null
+++ b/server/notification-providers/onesender.js
@@ -0,0 +1,47 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Onesender extends NotificationProvider {
+    name = "Onesender";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let data = {
+                heartbeat: heartbeatJSON,
+                monitor: monitorJSON,
+                msg,
+                to: notification.onesenderReceiver,
+                type: "text",
+                recipient_type: "individual",
+                text: {
+                    body: msg
+                }
+            };
+            if (notification.onesenderTypeReceiver === "private") {
+                data.to = notification.onesenderReceiver + "@s.whatsapp.net";
+            } else {
+                data.recipient_type = "group";
+                data.to = notification.onesenderReceiver + "@g.us";
+            }
+            let config = {
+                headers: {
+                    "Authorization": "Bearer " + notification.onesenderToken,
+                }
+            };
+            await axios.post(notification.onesenderURL, data, config);
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+
+}
+
+module.exports = Onesender;
diff --git a/server/notification-providers/opsgenie.js b/server/notification-providers/opsgenie.js
new file mode 100644
index 0000000..59a7970
--- /dev/null
+++ b/server/notification-providers/opsgenie.js
@@ -0,0 +1,96 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN } = require("../../src/util");
+
+const opsgenieAlertsUrlEU = "https://api.eu.opsgenie.com/v2/alerts";
+const opsgenieAlertsUrlUS = "https://api.opsgenie.com/v2/alerts";
+const okMsg = "Sent Successfully.";
+
+class Opsgenie extends NotificationProvider {
+    name = "Opsgenie";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        let opsgenieAlertsUrl;
+        let priority = (!notification.opsgeniePriority) ? 3 : notification.opsgeniePriority;
+        const textMsg = "Uptime Kuma Alert";
+
+        try {
+            switch (notification.opsgenieRegion) {
+                case "us":
+                    opsgenieAlertsUrl = opsgenieAlertsUrlUS;
+                    break;
+                case "eu":
+                    opsgenieAlertsUrl = opsgenieAlertsUrlEU;
+                    break;
+                default:
+                    opsgenieAlertsUrl = opsgenieAlertsUrlUS;
+            }
+
+            if (heartbeatJSON == null) {
+                let notificationTestAlias = "uptime-kuma-notification-test";
+                let data = {
+                    "message": msg,
+                    "alias": notificationTestAlias,
+                    "source": "Uptime Kuma",
+                    "priority": "P5"
+                };
+
+                return this.post(notification, opsgenieAlertsUrl, data);
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                let data = {
+                    "message": monitorJSON ? textMsg + `: ${monitorJSON.name}` : textMsg,
+                    "alias": monitorJSON.name,
+                    "description": msg,
+                    "source": "Uptime Kuma",
+                    "priority": `P${priority}`
+                };
+
+                return this.post(notification, opsgenieAlertsUrl, data);
+            }
+
+            if (heartbeatJSON.status === UP) {
+                let opsgenieAlertsCloseUrl = `${opsgenieAlertsUrl}/${encodeURIComponent(monitorJSON.name)}/close?identifierType=alias`;
+                let data = {
+                    "source": "Uptime Kuma",
+                };
+
+                return this.post(notification, opsgenieAlertsCloseUrl, data);
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Make POST request to Opsgenie
+     * @param {BeanModel} notification Notification to send
+     * @param {string} url Request url
+     * @param {object} data Request body
+     * @returns {Promise<string>} Success message
+     */
+    async post(notification, url, data) {
+        let config = {
+            headers: {
+                "Content-Type": "application/json",
+                "Authorization": `GenieKey ${notification.opsgenieApiKey}`,
+            }
+        };
+
+        let res = await axios.post(url, data, config);
+        if (res.status == null) {
+            return "Opsgenie notification failed with invalid response!";
+        }
+        if (res.status < 200 || res.status >= 300) {
+            return `Opsgenie notification failed with status code ${res.status}`;
+        }
+
+        return okMsg;
+    }
+}
+
+module.exports = Opsgenie;
diff --git a/server/notification-providers/pagerduty.js b/server/notification-providers/pagerduty.js
new file mode 100644
index 0000000..c60d782
--- /dev/null
+++ b/server/notification-providers/pagerduty.js
@@ -0,0 +1,114 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN, getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+let successMessage = "Sent Successfully.";
+
+class PagerDuty extends NotificationProvider {
+    name = "PagerDuty";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        try {
+            if (heartbeatJSON == null) {
+                const title = "Uptime Kuma Alert";
+                const monitor = {
+                    type: "ping",
+                    url: "Uptime Kuma Test Button",
+                };
+                return this.postNotification(notification, title, msg, monitor);
+            }
+
+            if (heartbeatJSON.status === UP) {
+                const title = "Uptime Kuma Monitor ✅ Up";
+                const eventAction = notification.pagerdutyAutoResolve || null;
+
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, eventAction);
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                const title = "Uptime Kuma Monitor 🔴 Down";
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, "trigger");
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Check if result is successful, result code should be in range 2xx
+     * @param {object} result Axios response object
+     * @returns {void}
+     * @throws {Error} The status code is not in range 2xx
+     */
+    checkResult(result) {
+        if (result.status == null) {
+            throw new Error("PagerDuty notification failed with invalid response!");
+        }
+        if (result.status < 200 || result.status >= 300) {
+            throw new Error("PagerDuty notification failed with status code " + result.status);
+        }
+    }
+
+    /**
+     * Send the message
+     * @param {BeanModel} notification Message title
+     * @param {string} title Message title
+     * @param {string} body Message
+     * @param {object} monitorInfo Monitor details (For Up/Down only)
+     * @param {?string} eventAction Action event for PagerDuty (trigger, acknowledge, resolve)
+     * @returns {Promise<string>} Success message
+     */
+    async postNotification(notification, title, body, monitorInfo, eventAction = "trigger") {
+
+        if (eventAction == null) {
+            return "No action required";
+        }
+
+        let monitorUrl;
+        if (monitorInfo.type === "port") {
+            monitorUrl = monitorInfo.hostname;
+            if (monitorInfo.port) {
+                monitorUrl += ":" + monitorInfo.port;
+            }
+        } else if (monitorInfo.hostname != null) {
+            monitorUrl = monitorInfo.hostname;
+        } else {
+            monitorUrl = monitorInfo.url;
+        }
+
+        const options = {
+            method: "POST",
+            url: notification.pagerdutyIntegrationUrl,
+            headers: { "Content-Type": "application/json" },
+            data: {
+                payload: {
+                    summary: `[${title}] [${monitorInfo.name}] ${body}`,
+                    severity: notification.pagerdutyPriority || "warning",
+                    source: monitorUrl,
+                },
+                routing_key: notification.pagerdutyIntegrationKey,
+                event_action: eventAction,
+                dedup_key: "Uptime Kuma/" + monitorInfo.id,
+            }
+        };
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorInfo) {
+            options.client = "Uptime Kuma";
+            options.client_url = baseURL + getMonitorRelativeURL(monitorInfo.id);
+        }
+
+        let result = await axios.request(options);
+        this.checkResult(result);
+        if (result.statusText != null) {
+            return "PagerDuty notification succeed: " + result.statusText;
+        }
+
+        return successMessage;
+    }
+}
+
+module.exports = PagerDuty;
diff --git a/server/notification-providers/pagertree.js b/server/notification-providers/pagertree.js
new file mode 100644
index 0000000..c7a5338
--- /dev/null
+++ b/server/notification-providers/pagertree.js
@@ -0,0 +1,93 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN, getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+let successMessage = "Sent Successfully.";
+
+class PagerTree extends NotificationProvider {
+    name = "PagerTree";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        try {
+            if (heartbeatJSON == null) {
+                // general messages
+                return this.postNotification(notification, msg, monitorJSON, heartbeatJSON);
+            }
+
+            if (heartbeatJSON.status === UP && notification.pagertreeAutoResolve === "resolve") {
+                return this.postNotification(notification, null, monitorJSON, heartbeatJSON, notification.pagertreeAutoResolve);
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                const title = `Uptime Kuma Monitor "${monitorJSON.name}" is DOWN`;
+                return this.postNotification(notification, title, monitorJSON, heartbeatJSON);
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Check if result is successful, result code should be in range 2xx
+     * @param {object} result Axios response object
+     * @returns {void}
+     * @throws {Error} The status code is not in range 2xx
+     */
+    checkResult(result) {
+        if (result.status == null) {
+            throw new Error("PagerTree notification failed with invalid response!");
+        }
+        if (result.status < 200 || result.status >= 300) {
+            throw new Error("PagerTree notification failed with status code " + result.status);
+        }
+    }
+
+    /**
+     * Send the message
+     * @param {BeanModel} notification Message title
+     * @param {string} title Message title
+     * @param {object} monitorJSON Monitor details (For Up/Down only)
+     * @param {object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @param {?string} eventAction Action event for PagerTree (create, resolve)
+     * @returns {Promise<string>} Success state
+     */
+    async postNotification(notification, title, monitorJSON, heartbeatJSON, eventAction = "create") {
+
+        if (eventAction == null) {
+            return "No action required";
+        }
+
+        const options = {
+            method: "POST",
+            url: notification.pagertreeIntegrationUrl,
+            headers: { "Content-Type": "application/json" },
+            data: {
+                event_type: eventAction,
+                id: heartbeatJSON?.monitorID || "uptime-kuma",
+                title: title,
+                urgency: notification.pagertreeUrgency,
+                heartbeat: heartbeatJSON,
+                monitor: monitorJSON
+            }
+        };
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorJSON) {
+            options.client = "Uptime Kuma";
+            options.client_url = baseURL + getMonitorRelativeURL(monitorJSON.id);
+        }
+
+        let result = await axios.request(options);
+        this.checkResult(result);
+        if (result.statusText != null) {
+            return "PagerTree notification succeed: " + result.statusText;
+        }
+
+        return successMessage;
+    }
+}
+
+module.exports = PagerTree;
diff --git a/server/notification-providers/promosms.js b/server/notification-providers/promosms.js
new file mode 100644
index 0000000..05334e9
--- /dev/null
+++ b/server/notification-providers/promosms.js
@@ -0,0 +1,53 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class PromoSMS extends NotificationProvider {
+    name = "promosms";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://promosms.com/api/rest/v3_2/sms";
+
+        if (notification.promosmsAllowLongSMS === undefined) {
+            notification.promosmsAllowLongSMS = false;
+        }
+
+        //TODO: Add option for enabling special characters. It will decrese message max length from 160 to 70 chars.
+        //Lets remove non ascii char
+        let cleanMsg = msg.replace(/[^\x00-\x7F]/g, "");
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "Authorization": "Basic " + Buffer.from(notification.promosmsLogin + ":" + notification.promosmsPassword).toString("base64"),
+                    "Accept": "text/json",
+                }
+            };
+            let data = {
+                "recipients": [ notification.promosmsPhoneNumber ],
+                //Trim message to maximum length of 1 SMS or 4 if we allowed long messages
+                "text": notification.promosmsAllowLongSMS ? cleanMsg.substring(0, 639) : cleanMsg.substring(0, 159),
+                "long-sms": notification.promosmsAllowLongSMS,
+                "type": Number(notification.promosmsSMSType),
+                "sender": notification.promosmsSenderName
+            };
+
+            let resp = await axios.post(url, data, config);
+
+            if (resp.data.response.status !== 0) {
+                let error = "Something gone wrong. Api returned " + resp.data.response.status + ".";
+                this.throwGeneralAxiosError(error);
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = PromoSMS;
diff --git a/server/notification-providers/pushbullet.js b/server/notification-providers/pushbullet.js
new file mode 100644
index 0000000..0b73031
--- /dev/null
+++ b/server/notification-providers/pushbullet.js
@@ -0,0 +1,56 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+const { DOWN, UP } = require("../../src/util");
+
+class Pushbullet extends NotificationProvider {
+    name = "pushbullet";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api.pushbullet.com/v2/pushes";
+
+        try {
+            let config = {
+                headers: {
+                    "Access-Token": notification.pushbulletAccessToken,
+                    "Content-Type": "application/json"
+                }
+            };
+            if (heartbeatJSON == null) {
+                let data = {
+                    "type": "note",
+                    "title": "Uptime Kuma Alert",
+                    "body": msg,
+                };
+                await axios.post(url, data, config);
+            } else if (heartbeatJSON["status"] === DOWN) {
+                let downData = {
+                    "type": "note",
+                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
+                    "body": "[🔴 Down] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
+                };
+                await axios.post(url, downData, config);
+            } else if (heartbeatJSON["status"] === UP) {
+                let upData = {
+                    "type": "note",
+                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
+                    "body": "[✅ Up] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
+                };
+                await axios.post(url, upData, config);
+            }
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Pushbullet;
diff --git a/server/notification-providers/pushdeer.js b/server/notification-providers/pushdeer.js
new file mode 100644
index 0000000..276c2f4
--- /dev/null
+++ b/server/notification-providers/pushdeer.js
@@ -0,0 +1,55 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class PushDeer extends NotificationProvider {
+    name = "PushDeer";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const serverUrl = notification.pushdeerServer || "https://api2.pushdeer.com";
+        const url = `${serverUrl.trim().replace(/\/*$/, "")}/message/push`;
+
+        let valid = msg != null && monitorJSON != null && heartbeatJSON != null;
+
+        let title;
+        if (valid && heartbeatJSON.status === UP) {
+            title = "## Uptime Kuma: " + monitorJSON.name + " up";
+        } else if (valid && heartbeatJSON.status === DOWN) {
+            title = "## Uptime Kuma: " + monitorJSON.name + " down";
+        } else {
+            title = "## Uptime Kuma Message";
+        }
+
+        let data = {
+            "pushkey": notification.pushdeerKey,
+            "text": title,
+            "desp": msg.replace(/\n/g, "\n\n"),
+            "type": "markdown",
+        };
+
+        try {
+            let res = await axios.post(url, data);
+
+            if ("error" in res.data) {
+                let error = res.data.error;
+                this.throwGeneralAxiosError(error);
+            }
+            if (res.data.content.result.length === 0) {
+                let error = "Invalid PushDeer key";
+                this.throwGeneralAxiosError(error);
+            } else if (JSON.parse(res.data.content.result[0]).success !== "ok") {
+                let error = "Unknown error";
+                this.throwGeneralAxiosError(error);
+            }
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = PushDeer;
diff --git a/server/notification-providers/pushover.js b/server/notification-providers/pushover.js
new file mode 100644
index 0000000..8422b64
--- /dev/null
+++ b/server/notification-providers/pushover.js
@@ -0,0 +1,58 @@
+const { getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Pushover extends NotificationProvider {
+    name = "pushover";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api.pushover.net/1/messages.json";
+
+        let data = {
+            "message": msg,
+            "user": notification.pushoveruserkey,
+            "token": notification.pushoverapptoken,
+            "sound": notification.pushoversounds,
+            "priority": notification.pushoverpriority,
+            "title": notification.pushovertitle,
+            "retry": "30",
+            "expire": "3600",
+            "html": 1,
+        };
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorJSON) {
+            data["url"] = baseURL + getMonitorRelativeURL(monitorJSON.id);
+            data["url_title"] = "Link to Monitor";
+        }
+
+        if (notification.pushoverdevice) {
+            data.device = notification.pushoverdevice;
+        }
+        if (notification.pushoverttl) {
+            data.ttl = notification.pushoverttl;
+        }
+
+        try {
+            if (heartbeatJSON == null) {
+                await axios.post(url, data);
+                return okMsg;
+            } else {
+                data.message += `\n<b>Time (${heartbeatJSON["timezone"]})</b>:${heartbeatJSON["localDateTime"]}`;
+                await axios.post(url, data);
+                return okMsg;
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = Pushover;
diff --git a/server/notification-providers/pushy.js b/server/notification-providers/pushy.js
new file mode 100644
index 0000000..cb70022
--- /dev/null
+++ b/server/notification-providers/pushy.js
@@ -0,0 +1,32 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Pushy extends NotificationProvider {
+    name = "pushy";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            await axios.post(`https://api.pushy.me/push?api_key=${notification.pushyAPIKey}`, {
+                "to": notification.pushyToken,
+                "data": {
+                    "message": "Uptime-Kuma"
+                },
+                "notification": {
+                    "body": msg,
+                    "badge": 1,
+                    "sound": "ping.aiff"
+                }
+            });
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Pushy;
diff --git a/server/notification-providers/rocket-chat.js b/server/notification-providers/rocket-chat.js
new file mode 100644
index 0000000..690e33a
--- /dev/null
+++ b/server/notification-providers/rocket-chat.js
@@ -0,0 +1,67 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const Slack = require("./slack");
+const { setting } = require("../util-server");
+const { getMonitorRelativeURL, DOWN } = require("../../src/util");
+
+class RocketChat extends NotificationProvider {
+    name = "rocket.chat";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (heartbeatJSON == null) {
+                let data = {
+                    "text": msg,
+                    "channel": notification.rocketchannel,
+                    "username": notification.rocketusername,
+                    "icon_emoji": notification.rocketiconemo,
+                };
+                await axios.post(notification.rocketwebhookURL, data);
+                return okMsg;
+            }
+
+            let data = {
+                "text": "Uptime Kuma Alert",
+                "channel": notification.rocketchannel,
+                "username": notification.rocketusername,
+                "icon_emoji": notification.rocketiconemo,
+                "attachments": [
+                    {
+                        "title": `Uptime Kuma Alert *Time (${heartbeatJSON["timezone"]})*\n${heartbeatJSON["localDateTime"]}`,
+                        "text": "*Message*\n" + msg,
+                    }
+                ]
+            };
+
+            // Color
+            if (heartbeatJSON.status === DOWN) {
+                data.attachments[0].color = "#ff0000";
+            } else {
+                data.attachments[0].color = "#32cd32";
+            }
+
+            if (notification.rocketbutton) {
+                await Slack.deprecateURL(notification.rocketbutton);
+            }
+
+            const baseURL = await setting("primaryBaseURL");
+
+            if (baseURL) {
+                data.attachments[0].title_link = baseURL + getMonitorRelativeURL(monitorJSON.id);
+            }
+
+            await axios.post(notification.rocketwebhookURL, data);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = RocketChat;
diff --git a/server/notification-providers/send-grid.js b/server/notification-providers/send-grid.js
new file mode 100644
index 0000000..3489f63
--- /dev/null
+++ b/server/notification-providers/send-grid.js
@@ -0,0 +1,65 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SendGrid extends NotificationProvider {
+    name = "SendGrid";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    Authorization: `Bearer ${notification.sendgridApiKey}`,
+                },
+            };
+
+            let personalizations = {
+                to: [{ email: notification.sendgridToEmail }],
+            };
+
+            // Add CC recipients if provided
+            if (notification.sendgridCcEmail) {
+                personalizations.cc = notification.sendgridCcEmail
+                    .split(",")
+                    .map((email) => ({ email: email.trim() }));
+            }
+
+            // Add BCC recipients if provided
+            if (notification.sendgridBccEmail) {
+                personalizations.bcc = notification.sendgridBccEmail
+                    .split(",")
+                    .map((email) => ({ email: email.trim() }));
+            }
+
+            let data = {
+                personalizations: [ personalizations ],
+                from: { email: notification.sendgridFromEmail.trim() },
+                subject:
+          notification.sendgridSubject ||
+          "Notification from Your Uptime Kuma",
+                content: [
+                    {
+                        type: "text/plain",
+                        value: msg,
+                    },
+                ],
+            };
+
+            await axios.post(
+                "https://api.sendgrid.com/v3/mail/send",
+                data,
+                config
+            );
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SendGrid;
diff --git a/server/notification-providers/serverchan.js b/server/notification-providers/serverchan.js
new file mode 100644
index 0000000..aee22f8
--- /dev/null
+++ b/server/notification-providers/serverchan.js
@@ -0,0 +1,51 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class ServerChan extends NotificationProvider {
+    name = "ServerChan";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        // serverchan3 requires sending via ft07.com
+        const matchResult = String(notification.serverChanSendKey).match(/^sctp(\d+)t/i);
+        const url = matchResult && matchResult[1]
+            ? `https://${matchResult[1]}.push.ft07.com/send/${notification.serverChanSendKey}.send`
+            : `https://sctapi.ftqq.com/${notification.serverChanSendKey}.send`;
+
+        try {
+            await axios.post(url, {
+                "title": this.checkStatus(heartbeatJSON, monitorJSON),
+                "desp": msg,
+            });
+
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Get the formatted title for message
+     * @param {?object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @param {?object} monitorJSON Monitor details (For Up/Down only)
+     * @returns {string} Formatted title
+     */
+    checkStatus(heartbeatJSON, monitorJSON) {
+        let title = "UptimeKuma Message";
+        if (heartbeatJSON != null && heartbeatJSON["status"] === UP) {
+            title = "UptimeKuma Monitor Up " + monitorJSON["name"];
+        }
+        if (heartbeatJSON != null && heartbeatJSON["status"] === DOWN) {
+            title = "UptimeKuma Monitor Down " + monitorJSON["name"];
+        }
+        return title;
+    }
+}
+
+module.exports = ServerChan;
diff --git a/server/notification-providers/serwersms.js b/server/notification-providers/serwersms.js
new file mode 100644
index 0000000..f7c8644
--- /dev/null
+++ b/server/notification-providers/serwersms.js
@@ -0,0 +1,47 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SerwerSMS extends NotificationProvider {
+    name = "serwersms";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api2.serwersms.pl/messages/send_sms";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                }
+            };
+            let data = {
+                "username": notification.serwersmsUsername,
+                "password": notification.serwersmsPassword,
+                "phone": notification.serwersmsPhoneNumber,
+                "text": msg.replace(/[^\x00-\x7F]/g, ""),
+                "sender": notification.serwersmsSenderName,
+            };
+
+            let resp = await axios.post(url, data, config);
+
+            if (!resp.data.success) {
+                if (resp.data.error) {
+                    let error = `SerwerSMS.pl API returned error code ${resp.data.error.code} (${resp.data.error.type}) with error message: ${resp.data.error.message}`;
+                    this.throwGeneralAxiosError(error);
+                } else {
+                    let error = "SerwerSMS.pl API returned an unexpected response";
+                    this.throwGeneralAxiosError(error);
+                }
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SerwerSMS;
diff --git a/server/notification-providers/sevenio.js b/server/notification-providers/sevenio.js
new file mode 100644
index 0000000..eac38a2
--- /dev/null
+++ b/server/notification-providers/sevenio.js
@@ -0,0 +1,57 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class SevenIO extends NotificationProvider {
+    name = "SevenIO";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        const data = {
+            to: notification.sevenioTo,
+            from: notification.sevenioSender || "Uptime Kuma",
+            text: msg,
+        };
+
+        const config = {
+            baseURL: "https://gateway.seven.io/api/",
+            headers: {
+                "Content-Type": "application/json",
+                "X-API-Key": notification.sevenioApiKey,
+            },
+        };
+
+        try {
+            // testing or certificate expiry notification
+            if (heartbeatJSON == null) {
+                await axios.post("sms", data, config);
+                return okMsg;
+            }
+
+            let address = this.extractAddress(monitorJSON);
+            if (address !== "") {
+                address = `(${address}) `;
+            }
+
+            // If heartbeatJSON is not null, we go into the normal alerting loop.
+            if (heartbeatJSON["status"] === DOWN) {
+                data.text = `Your service ${monitorJSON["name"]} ${address}went down at ${heartbeatJSON["localDateTime"]} ` +
+                    `(${heartbeatJSON["timezone"]}). Error: ${heartbeatJSON["msg"]}`;
+            } else if (heartbeatJSON["status"] === UP) {
+                data.text = `Your service ${monitorJSON["name"]} ${address}went back up at ${heartbeatJSON["localDateTime"]} ` +
+                    `(${heartbeatJSON["timezone"]}).`;
+            }
+            await axios.post("sms", data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+}
+
+module.exports = SevenIO;
diff --git a/server/notification-providers/signal.js b/server/notification-providers/signal.js
new file mode 100644
index 0000000..9702d06
--- /dev/null
+++ b/server/notification-providers/signal.js
@@ -0,0 +1,29 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Signal extends NotificationProvider {
+    name = "signal";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let data = {
+                "message": msg,
+                "number": notification.signalNumber,
+                "recipients": notification.signalRecipients.replace(/\s/g, "").split(","),
+            };
+            let config = {};
+
+            await axios.post(notification.signalURL, data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Signal;
diff --git a/server/notification-providers/signl4.js b/server/notification-providers/signl4.js
new file mode 100644
index 0000000..8261a73
--- /dev/null
+++ b/server/notification-providers/signl4.js
@@ -0,0 +1,52 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN } = require("../../src/util");
+
+class SIGNL4 extends NotificationProvider {
+    name = "SIGNL4";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let data = {
+                heartbeat: heartbeatJSON,
+                monitor: monitorJSON,
+                msg,
+                // Source system
+                "X-S4-SourceSystem": "UptimeKuma",
+                monitorUrl: this.extractAddress(monitorJSON),
+            };
+
+            const config = {
+                headers: {
+                    "Content-Type": "application/json"
+                }
+            };
+
+            if (heartbeatJSON == null) {
+                // Test alert
+                data.title = "Uptime Kuma Alert";
+                data.message = msg;
+            } else if (heartbeatJSON.status === UP) {
+                data.title = "Uptime Kuma Monitor ✅ Up";
+                data["X-S4-ExternalID"] = "UptimeKuma-" + monitorJSON.monitorID;
+                data["X-S4-Status"] = "resolved";
+            } else if (heartbeatJSON.status === DOWN) {
+                data.title = "Uptime Kuma Monitor 🔴 Down";
+                data["X-S4-ExternalID"] = "UptimeKuma-" + monitorJSON.monitorID;
+                data["X-S4-Status"] = "new";
+            }
+
+            await axios.post(notification.webhookURL, data, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SIGNL4;
diff --git a/server/notification-providers/slack.js b/server/notification-providers/slack.js
new file mode 100644
index 0000000..209c7c0
--- /dev/null
+++ b/server/notification-providers/slack.js
@@ -0,0 +1,173 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { setSettings, setting } = require("../util-server");
+const { getMonitorRelativeURL, UP } = require("../../src/util");
+
+class Slack extends NotificationProvider {
+    name = "slack";
+
+    /**
+     * Deprecated property notification.slackbutton
+     * Set it as primary base url if this is not yet set.
+     * @deprecated
+     * @param {string} url The primary base URL to use
+     * @returns {Promise<void>}
+     */
+    static async deprecateURL(url) {
+        let currentPrimaryBaseURL = await setting("primaryBaseURL");
+
+        if (!currentPrimaryBaseURL) {
+            console.log("Move the url to be the primary base URL");
+            await setSettings("general", {
+                primaryBaseURL: url,
+            });
+        } else {
+            console.log("Already there, no need to move the primary base URL");
+        }
+    }
+
+    /**
+     * Builds the actions available in the slack message
+     * @param {string} baseURL Uptime Kuma base URL
+     * @param {object} monitorJSON The monitor config
+     * @returns {Array} The relevant action objects
+     */
+    buildActions(baseURL, monitorJSON) {
+        const actions = [];
+
+        if (baseURL) {
+            actions.push({
+                "type": "button",
+                "text": {
+                    "type": "plain_text",
+                    "text": "Visit Uptime Kuma",
+                },
+                "value": "Uptime-Kuma",
+                "url": baseURL + getMonitorRelativeURL(monitorJSON.id),
+            });
+
+        }
+
+        const address = this.extractAddress(monitorJSON);
+        if (address) {
+            actions.push({
+                "type": "button",
+                "text": {
+                    "type": "plain_text",
+                    "text": "Visit site",
+                },
+                "value": "Site",
+                "url": address,
+            });
+        }
+
+        return actions;
+    }
+
+    /**
+     * Builds the different blocks the Slack message consists of.
+     * @param {string} baseURL Uptime Kuma base URL
+     * @param {object} monitorJSON The monitor object
+     * @param {object} heartbeatJSON The heartbeat object
+     * @param {string} title The message title
+     * @param {string} msg The message body
+     * @returns {Array<object>} The rich content blocks for the Slack message
+     */
+    buildBlocks(baseURL, monitorJSON, heartbeatJSON, title, msg) {
+
+        //create an array to dynamically add blocks
+        const blocks = [];
+
+        // the header block
+        blocks.push({
+            "type": "header",
+            "text": {
+                "type": "plain_text",
+                "text": title,
+            },
+        });
+
+        // the body block, containing the details
+        blocks.push({
+            "type": "section",
+            "fields": [
+                {
+                    "type": "mrkdwn",
+                    "text": "*Message*\n" + msg,
+                },
+                {
+                    "type": "mrkdwn",
+                    "text": `*Time (${heartbeatJSON["timezone"]})*\n${heartbeatJSON["localDateTime"]}`,
+                }
+            ],
+        });
+
+        const actions = this.buildActions(baseURL, monitorJSON);
+        if (actions.length > 0) {
+            //the actions block, containing buttons
+            blocks.push({
+                "type": "actions",
+                "elements": actions,
+            });
+        }
+
+        return blocks;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        if (notification.slackchannelnotify) {
+            msg += " <!channel>";
+        }
+
+        try {
+            if (heartbeatJSON == null) {
+                let data = {
+                    "text": msg,
+                    "channel": notification.slackchannel,
+                    "username": notification.slackusername,
+                    "icon_emoji": notification.slackiconemo,
+                };
+                await axios.post(notification.slackwebhookURL, data);
+                return okMsg;
+            }
+
+            const baseURL = await setting("primaryBaseURL");
+
+            const title = "Uptime Kuma Alert";
+            let data = {
+                "channel": notification.slackchannel,
+                "username": notification.slackusername,
+                "icon_emoji": notification.slackiconemo,
+                "attachments": [],
+            };
+
+            if (notification.slackrichmessage) {
+                data.attachments.push(
+                    {
+                        "color": (heartbeatJSON["status"] === UP) ? "#2eb886" : "#e01e5a",
+                        "blocks": this.buildBlocks(baseURL, monitorJSON, heartbeatJSON, title, msg),
+                    }
+                );
+            } else {
+                data.text = `${title}\n${msg}`;
+            }
+
+            if (notification.slackbutton) {
+                await Slack.deprecateURL(notification.slackbutton);
+            }
+
+            await axios.post(notification.slackwebhookURL, data);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = Slack;
diff --git a/server/notification-providers/smsc.js b/server/notification-providers/smsc.js
new file mode 100644
index 0000000..89f01d0
--- /dev/null
+++ b/server/notification-providers/smsc.js
@@ -0,0 +1,47 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SMSC extends NotificationProvider {
+    name = "smsc";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://smsc.kz/sys/send.php?";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "Accept": "text/json",
+                }
+            };
+
+            let getArray = [
+                "fmt=3",
+                "translit=" + notification.smscTranslit,
+                "login=" + notification.smscLogin,
+                "psw=" + notification.smscPassword,
+                "phones=" + notification.smscToNumber,
+                "mes=" + encodeURIComponent(msg.replace(/[^\x00-\x7F]/g, "")),
+            ];
+            if (notification.smscSenderName !== "") {
+                getArray.push("sender=" + notification.smscSenderName);
+            }
+
+            let resp = await axios.get(url + getArray.join("&"), config);
+            if (resp.data.id === undefined) {
+                let error = `Something gone wrong. Api returned code ${resp.data.error_code}: ${resp.data.error}`;
+                this.throwGeneralAxiosError(error);
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SMSC;
diff --git a/server/notification-providers/smseagle.js b/server/notification-providers/smseagle.js
new file mode 100644
index 0000000..4e89700
--- /dev/null
+++ b/server/notification-providers/smseagle.js
@@ -0,0 +1,73 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SMSEagle extends NotificationProvider {
+    name = "SMSEagle";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                }
+            };
+
+            let postData;
+            let sendMethod;
+            let recipientType;
+
+            let encoding = (notification.smseagleEncoding) ? "1" : "0";
+            let priority = (notification.smseaglePriority) ? notification.smseaglePriority : "0";
+
+            if (notification.smseagleRecipientType === "smseagle-contact") {
+                recipientType = "contactname";
+                sendMethod = "sms.send_tocontact";
+            }
+            if (notification.smseagleRecipientType === "smseagle-group") {
+                recipientType = "groupname";
+                sendMethod = "sms.send_togroup";
+            }
+            if (notification.smseagleRecipientType === "smseagle-to") {
+                recipientType = "to";
+                sendMethod = "sms.send_sms";
+            }
+
+            let params = {
+                access_token: notification.smseagleToken,
+                [recipientType]: notification.smseagleRecipient,
+                message: msg,
+                responsetype: "extended",
+                unicode: encoding,
+                highpriority: priority
+            };
+
+            postData = {
+                method: sendMethod,
+                params: params
+            };
+
+            let resp = await axios.post(notification.smseagleUrl + "/jsonrpc/sms", postData, config);
+
+            if ((JSON.stringify(resp.data)).indexOf("message_id") === -1) {
+                let error = "";
+                if (resp.data.result && resp.data.result.error_text) {
+                    error = `SMSEagle API returned error: ${JSON.stringify(resp.data.result.error_text)}`;
+                } else {
+                    error = "SMSEagle API returned an unexpected response";
+                }
+                throw new Error(error);
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SMSEagle;
diff --git a/server/notification-providers/smsmanager.js b/server/notification-providers/smsmanager.js
new file mode 100644
index 0000000..d01285d
--- /dev/null
+++ b/server/notification-providers/smsmanager.js
@@ -0,0 +1,29 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SMSManager extends NotificationProvider {
+    name = "SMSManager";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://http-api.smsmanager.cz/Send";
+
+        try {
+            let data = {
+                apikey: notification.smsmanagerApiKey,
+                message: msg.replace(/[^\x00-\x7F]/g, ""),
+                number: notification.numbers,
+                gateway: notification.messageType,
+            };
+            await axios.get(`${url}?apikey=${data.apikey}&message=${data.message}&number=${data.number}&gateway=${data.messageType}`);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SMSManager;
diff --git a/server/notification-providers/smspartner.js b/server/notification-providers/smspartner.js
new file mode 100644
index 0000000..5595217
--- /dev/null
+++ b/server/notification-providers/smspartner.js
@@ -0,0 +1,46 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SMSPartner extends NotificationProvider {
+    name = "SMSPartner";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api.smspartner.fr/v1/send";
+
+        try {
+            // smspartner does not support non ascii characters and only a maximum 639 characters
+            let cleanMsg = msg.replace(/[^\x00-\x7F]/g, "").substring(0, 639);
+
+            let data = {
+                "apiKey": notification.smspartnerApikey,
+                "sender": notification.smspartnerSenderName.substring(0, 11),
+                "phoneNumbers": notification.smspartnerPhoneNumber,
+                "message": cleanMsg,
+            };
+
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "cache-control": "no-cache",
+                    "Accept": "application/json",
+                }
+            };
+
+            let resp = await axios.post(url, data, config);
+
+            if (resp.data.success !== true) {
+                throw Error(`Api returned ${resp.data.response.status}.`);
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SMSPartner;
diff --git a/server/notification-providers/smtp.js b/server/notification-providers/smtp.js
new file mode 100644
index 0000000..9f3defa
--- /dev/null
+++ b/server/notification-providers/smtp.js
@@ -0,0 +1,120 @@
+const nodemailer = require("nodemailer");
+const NotificationProvider = require("./notification-provider");
+const { DOWN } = require("../../src/util");
+const { Liquid } = require("liquidjs");
+
+class SMTP extends NotificationProvider {
+    name = "smtp";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        const config = {
+            host: notification.smtpHost,
+            port: notification.smtpPort,
+            secure: notification.smtpSecure,
+            tls: {
+                rejectUnauthorized: !notification.smtpIgnoreTLSError || false,
+            }
+        };
+
+        // Fix #1129
+        if (notification.smtpDkimDomain) {
+            config.dkim = {
+                domainName: notification.smtpDkimDomain,
+                keySelector: notification.smtpDkimKeySelector,
+                privateKey: notification.smtpDkimPrivateKey,
+                hashAlgo: notification.smtpDkimHashAlgo,
+                headerFieldNames: notification.smtpDkimheaderFieldNames,
+                skipFields: notification.smtpDkimskipFields,
+            };
+        }
+
+        // Should fix the issue in https://github.com/louislam/uptime-kuma/issues/26#issuecomment-896373904
+        if (notification.smtpUsername || notification.smtpPassword) {
+            config.auth = {
+                user: notification.smtpUsername,
+                pass: notification.smtpPassword,
+            };
+        }
+
+        // default values in case the user does not want to template
+        let subject = msg;
+        let body = msg;
+        if (heartbeatJSON) {
+            body = `${msg}\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`;
+        }
+        // subject and body are templated
+        if ((monitorJSON && heartbeatJSON) || msg.endsWith("Testing")) {
+            // cannot end with whitespace as this often raises spam scores
+            const customSubject = notification.customSubject?.trim() || "";
+            const customBody = notification.customBody?.trim() || "";
+
+            const context = this.generateContext(msg, monitorJSON, heartbeatJSON);
+            const engine = new Liquid();
+            if (customSubject !== "") {
+                const tpl = engine.parse(customSubject);
+                subject = await engine.render(tpl, context);
+            }
+            if (customBody !== "") {
+                const tpl = engine.parse(customBody);
+                body = await engine.render(tpl, context);
+            }
+        }
+
+        // send mail with defined transport object
+        let transporter = nodemailer.createTransport(config);
+        await transporter.sendMail({
+            from: notification.smtpFrom,
+            cc: notification.smtpCC,
+            bcc: notification.smtpBCC,
+            to: notification.smtpTo,
+            subject: subject,
+            text: body,
+        });
+
+        return okMsg;
+    }
+
+    /**
+     * Generate context for LiquidJS
+     * @param {string} msg  the message that will be included in the context
+     * @param {?object} monitorJSON Monitor details (For Up/Down/Cert-Expiry only)
+     * @param {?object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @returns {{STATUS: string, status: string, HOSTNAME_OR_URL: string, hostnameOrUrl: string, NAME: string, name: string, monitorJSON: ?object, heartbeatJSON: ?object, msg: string}} the context
+     */
+    generateContext(msg, monitorJSON, heartbeatJSON) {
+        // Let's start with dummy values to simplify code
+        let monitorName = "Monitor Name not available";
+        let monitorHostnameOrURL = "testing.hostname";
+
+        if (monitorJSON !== null) {
+            monitorName = monitorJSON["name"];
+            monitorHostnameOrURL = this.extractAddress(monitorJSON);
+        }
+
+        let serviceStatus = "⚠️ Test";
+        if (heartbeatJSON !== null) {
+            serviceStatus = (heartbeatJSON["status"] === DOWN) ? "🔴 Down" : "✅ Up";
+        }
+        return {
+            // for v1 compatibility, to be removed in v3
+            "STATUS": serviceStatus,
+            "NAME": monitorName,
+            "HOSTNAME_OR_URL": monitorHostnameOrURL,
+
+            // variables which are officially supported
+            "status": serviceStatus,
+            "name": monitorName,
+            "hostnameOrURL": monitorHostnameOrURL,
+            monitorJSON,
+            heartbeatJSON,
+            msg,
+        };
+    }
+}
+
+module.exports = SMTP;
diff --git a/server/notification-providers/splunk.js b/server/notification-providers/splunk.js
new file mode 100644
index 0000000..e07c510
--- /dev/null
+++ b/server/notification-providers/splunk.js
@@ -0,0 +1,114 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN, getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+let successMessage = "Sent Successfully.";
+
+class Splunk extends NotificationProvider {
+    name = "Splunk";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        try {
+            if (heartbeatJSON == null) {
+                const title = "Uptime Kuma Alert";
+                const monitor = {
+                    type: "ping",
+                    url: "Uptime Kuma Test Button",
+                };
+                return this.postNotification(notification, title, msg, monitor, "trigger");
+            }
+
+            if (heartbeatJSON.status === UP) {
+                const title = "Uptime Kuma Monitor ✅ Up";
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, "recovery");
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                const title = "Uptime Kuma Monitor 🔴 Down";
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, "trigger");
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Check if result is successful, result code should be in range 2xx
+     * @param {object} result Axios response object
+     * @returns {void}
+     * @throws {Error} The status code is not in range 2xx
+     */
+    checkResult(result) {
+        if (result.status == null) {
+            throw new Error("Splunk notification failed with invalid response!");
+        }
+        if (result.status < 200 || result.status >= 300) {
+            throw new Error("Splunk notification failed with status code " + result.status);
+        }
+    }
+
+    /**
+     * Send the message
+     * @param {BeanModel} notification Message title
+     * @param {string} title Message title
+     * @param {string} body Message
+     * @param {object} monitorInfo Monitor details (For Up/Down only)
+     * @param {?string} eventAction Action event for PagerDuty (trigger, acknowledge, resolve)
+     * @returns {Promise<string>} Success state
+     */
+    async postNotification(notification, title, body, monitorInfo, eventAction = "trigger") {
+
+        let monitorUrl;
+        if (monitorInfo.type === "port") {
+            monitorUrl = monitorInfo.hostname;
+            if (monitorInfo.port) {
+                monitorUrl += ":" + monitorInfo.port;
+            }
+        } else if (monitorInfo.hostname != null) {
+            monitorUrl = monitorInfo.hostname;
+        } else {
+            monitorUrl = monitorInfo.url;
+        }
+
+        if (eventAction === "recovery") {
+            if (notification.splunkAutoResolve === "0") {
+                return "No action required";
+            }
+            eventAction = notification.splunkAutoResolve;
+        } else {
+            eventAction = notification.splunkSeverity;
+        }
+
+        const options = {
+            method: "POST",
+            url: notification.splunkRestURL,
+            headers: { "Content-Type": "application/json" },
+            data: {
+                message_type: eventAction,
+                state_message: `[${title}] [${monitorUrl}] ${body}`,
+                entity_display_name: "Uptime Kuma Alert: " + monitorInfo.name,
+                routing_key: notification.pagerdutyIntegrationKey,
+                entity_id: "Uptime Kuma/" + monitorInfo.id,
+            }
+        };
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorInfo) {
+            options.client = "Uptime Kuma";
+            options.client_url = baseURL + getMonitorRelativeURL(monitorInfo.id);
+        }
+
+        let result = await axios.request(options);
+        this.checkResult(result);
+        if (result.statusText != null) {
+            return "Splunk notification succeed: " + result.statusText;
+        }
+
+        return successMessage;
+    }
+}
+
+module.exports = Splunk;
diff --git a/server/notification-providers/squadcast.js b/server/notification-providers/squadcast.js
new file mode 100644
index 0000000..5713783
--- /dev/null
+++ b/server/notification-providers/squadcast.js
@@ -0,0 +1,60 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN } = require("../../src/util");
+
+class Squadcast extends NotificationProvider {
+    name = "squadcast";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+
+            let config = {};
+            let data = {
+                message: msg,
+                description: "",
+                tags: {},
+                heartbeat: heartbeatJSON,
+                source: "uptime-kuma"
+            };
+
+            if (heartbeatJSON !== null) {
+                data.description = heartbeatJSON["msg"];
+                data.event_id = heartbeatJSON["monitorID"];
+
+                if (heartbeatJSON["status"] === DOWN) {
+                    data.message = `${monitorJSON["name"]} is DOWN`;
+                    data.status = "trigger";
+                } else {
+                    data.message = `${monitorJSON["name"]} is UP`;
+                    data.status = "resolve";
+                }
+
+                data.tags["AlertAddress"] = this.extractAddress(monitorJSON);
+
+                monitorJSON["tags"].forEach(tag => {
+                    data.tags[tag["name"]] = {
+                        value: tag["value"]
+                    };
+                    if (tag["color"] !== null) {
+                        data.tags[tag["name"]]["color"] = tag["color"];
+                    }
+                });
+            }
+
+            await axios.post(notification.squadcastWebhookURL, data, config);
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+
+}
+
+module.exports = Squadcast;
diff --git a/server/notification-providers/stackfield.js b/server/notification-providers/stackfield.js
new file mode 100644
index 0000000..65a9245
--- /dev/null
+++ b/server/notification-providers/stackfield.js
@@ -0,0 +1,44 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { setting } = require("../util-server");
+const { getMonitorRelativeURL } = require("../../src/util");
+
+class Stackfield extends NotificationProvider {
+    name = "stackfield";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            // Stackfield message formatting: https://www.stackfield.com/help/formatting-messages-2001
+
+            let textMsg = "+Uptime Kuma Alert+";
+
+            if (monitorJSON && monitorJSON.name) {
+                textMsg += `\n*${monitorJSON.name}*`;
+            }
+
+            textMsg += `\n${msg}`;
+
+            const baseURL = await setting("primaryBaseURL");
+            if (baseURL) {
+                textMsg += `\n${baseURL + getMonitorRelativeURL(monitorJSON.id)}`;
+            }
+
+            const data = {
+                "Title": textMsg,
+            };
+
+            await axios.post(notification.stackfieldwebhookURL, data);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+}
+
+module.exports = Stackfield;
diff --git a/server/notification-providers/teams.js b/server/notification-providers/teams.js
new file mode 100644
index 0000000..2793604
--- /dev/null
+++ b/server/notification-providers/teams.js
@@ -0,0 +1,240 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { setting } = require("../util-server");
+const { DOWN, UP, getMonitorRelativeURL } = require("../../src/util");
+
+class Teams extends NotificationProvider {
+    name = "teams";
+
+    /**
+     * Generate the message to send
+     * @param {const} status The status constant
+     * @param {string} monitorName Name of monitor
+     * @param {boolean} withStatusSymbol If the status should be prepended as symbol
+     * @returns {string} Status message
+     */
+    _statusMessageFactory = (status, monitorName, withStatusSymbol) => {
+        if (status === DOWN) {
+            return (withStatusSymbol ? "🔴 " : "") + `[${monitorName}] went down`;
+        } else if (status === UP) {
+            return (withStatusSymbol ? "✅ " : "") + `[${monitorName}] is back online`;
+        }
+        return "Notification";
+    };
+
+    /**
+     * Select the style to use based on status
+     * @param {const} status The status constant
+     * @returns {string} Selected style for adaptive cards
+     */
+    _getStyle = (status) => {
+        if (status === DOWN) {
+            return "attention";
+        }
+        if (status === UP) {
+            return "good";
+        }
+        return "emphasis";
+    };
+
+    /**
+     * Generate payload for notification
+     * @param {object} args Method arguments
+     * @param {object} args.heartbeatJSON Heartbeat details
+     * @param {string} args.monitorName Name of the monitor affected
+     * @param {string} args.monitorUrl URL of the monitor affected
+     * @param {string} args.dashboardUrl URL of the dashboard affected
+     * @returns {object} Notification payload
+     */
+    _notificationPayloadFactory = ({
+        heartbeatJSON,
+        monitorName,
+        monitorUrl,
+        dashboardUrl,
+    }) => {
+        const status = heartbeatJSON?.status;
+        const facts = [];
+        const actions = [];
+
+        if (dashboardUrl) {
+            actions.push({
+                "type": "Action.OpenUrl",
+                "title": "Visit Uptime Kuma",
+                "url": dashboardUrl
+            });
+        }
+
+        if (heartbeatJSON?.msg) {
+            facts.push({
+                title: "Description",
+                value: heartbeatJSON.msg,
+            });
+        }
+
+        if (monitorName) {
+            facts.push({
+                title: "Monitor",
+                value: monitorName,
+            });
+        }
+
+        if (monitorUrl && monitorUrl !== "https://") {
+            facts.push({
+                title: "URL",
+                // format URL as markdown syntax, to be clickable
+                value: `[${monitorUrl}](${monitorUrl})`,
+            });
+            actions.push({
+                "type": "Action.OpenUrl",
+                "title": "Visit Monitor URL",
+                "url": monitorUrl
+            });
+        }
+
+        if (heartbeatJSON?.localDateTime) {
+            facts.push({
+                title: "Time",
+                value: heartbeatJSON.localDateTime + (heartbeatJSON.timezone ? ` (${heartbeatJSON.timezone})` : ""),
+            });
+        }
+
+        const payload = {
+            "type": "message",
+            // message with status prefix as notification text
+            "summary": this._statusMessageFactory(status, monitorName, true),
+            "attachments": [
+                {
+                    "contentType": "application/vnd.microsoft.card.adaptive",
+                    "contentUrl": "",
+                    "content": {
+                        "type": "AdaptiveCard",
+                        "body": [
+                            {
+                                "type": "Container",
+                                "verticalContentAlignment": "Center",
+                                "items": [
+                                    {
+                                        "type": "ColumnSet",
+                                        "style": this._getStyle(status),
+                                        "columns": [
+                                            {
+                                                "type": "Column",
+                                                "width": "auto",
+                                                "verticalContentAlignment": "Center",
+                                                "items": [
+                                                    {
+                                                        "type": "Image",
+                                                        "width": "32px",
+                                                        "style": "Person",
+                                                        "url": "https://raw.githubusercontent.com/louislam/uptime-kuma/master/public/icon.png",
+                                                        "altText": "Uptime Kuma Logo"
+                                                    }
+                                                ]
+                                            },
+                                            {
+                                                "type": "Column",
+                                                "width": "stretch",
+                                                "items": [
+                                                    {
+                                                        "type": "TextBlock",
+                                                        "size": "Medium",
+                                                        "weight": "Bolder",
+                                                        "text": `**${this._statusMessageFactory(status, monitorName, false)}**`,
+                                                    },
+                                                    {
+                                                        "type": "TextBlock",
+                                                        "size": "Small",
+                                                        "weight": "Default",
+                                                        "text": "Uptime Kuma Alert",
+                                                        "isSubtle": true,
+                                                        "spacing": "None"
+                                                    }
+                                                ]
+                                            }
+                                        ]
+                                    }
+                                ]
+                            },
+                            {
+                                "type": "FactSet",
+                                "separator": false,
+                                "facts": facts
+                            }
+                        ],
+                        "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
+                        "version": "1.5"
+                    }
+                }
+            ]
+        };
+
+        if (actions) {
+            payload.attachments[0].content.body.push({
+                "type": "ActionSet",
+                "actions": actions,
+            });
+        }
+
+        return payload;
+    };
+
+    /**
+     * Send the notification
+     * @param {string} webhookUrl URL to send the request to
+     * @param {object} payload Payload generated by _notificationPayloadFactory
+     * @returns {Promise<void>}
+     */
+    _sendNotification = async (webhookUrl, payload) => {
+        await axios.post(webhookUrl, payload);
+    };
+
+    /**
+     * Send a general notification
+     * @param {string} webhookUrl URL to send request to
+     * @param {string} msg Message to send
+     * @returns {Promise<void>}
+     */
+    _handleGeneralNotification = (webhookUrl, msg) => {
+        const payload = this._notificationPayloadFactory({
+            heartbeatJSON: {
+                msg: msg
+            }
+        });
+
+        return this._sendNotification(webhookUrl, payload);
+    };
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (heartbeatJSON == null) {
+                await this._handleGeneralNotification(notification.webhookUrl, msg);
+                return okMsg;
+            }
+
+            const baseURL = await setting("primaryBaseURL");
+            let dashboardUrl;
+            if (baseURL) {
+                dashboardUrl = baseURL + getMonitorRelativeURL(monitorJSON.id);
+            }
+
+            const payload = this._notificationPayloadFactory({
+                heartbeatJSON: heartbeatJSON,
+                monitorName: monitorJSON.name,
+                monitorUrl: this.extractAddress(monitorJSON),
+                dashboardUrl: dashboardUrl,
+            });
+
+            await this._sendNotification(notification.webhookUrl, payload);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Teams;
diff --git a/server/notification-providers/techulus-push.js b/server/notification-providers/techulus-push.js
new file mode 100644
index 0000000..bf688b1
--- /dev/null
+++ b/server/notification-providers/techulus-push.js
@@ -0,0 +1,36 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class TechulusPush extends NotificationProvider {
+    name = "PushByTechulus";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        let data = {
+            "title": notification?.pushTitle?.length ? notification.pushTitle : "Uptime-Kuma",
+            "body": msg,
+            "timeSensitive": notification.pushTimeSensitive ?? true,
+        };
+
+        if (notification.pushChannel) {
+            data.channel = notification.pushChannel;
+        }
+
+        if (notification.pushSound) {
+            data.sound = notification.pushSound;
+        }
+
+        try {
+            await axios.post(`https://push.techulus.com/api/v1/notify/${notification.pushAPIKey}`, data);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = TechulusPush;
diff --git a/server/notification-providers/telegram.js b/server/notification-providers/telegram.js
new file mode 100644
index 0000000..c5bbb19
--- /dev/null
+++ b/server/notification-providers/telegram.js
@@ -0,0 +1,36 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Telegram extends NotificationProvider {
+    name = "telegram";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+        const url = "https://api.telegram.org";
+
+        try {
+            let params = {
+                chat_id: notification.telegramChatID,
+                text: msg,
+                disable_notification: notification.telegramSendSilently ?? false,
+                protect_content: notification.telegramProtectContent ?? false,
+            };
+            if (notification.telegramMessageThreadID) {
+                params.message_thread_id = notification.telegramMessageThreadID;
+            }
+
+            await axios.get(`${url}/bot${notification.telegramBotToken}/sendMessage`, {
+                params: params,
+            });
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Telegram;
diff --git a/server/notification-providers/threema.js b/server/notification-providers/threema.js
new file mode 100644
index 0000000..07a54ab
--- /dev/null
+++ b/server/notification-providers/threema.js
@@ -0,0 +1,77 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Threema extends NotificationProvider {
+    name = "threema";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const url = "https://msgapi.threema.ch/send_simple";
+
+        const config = {
+            headers: {
+                "Accept": "*/*",
+                "Content-Type": "application/x-www-form-urlencoded; charset=utf-8"
+            }
+        };
+
+        const data = {
+            from: notification.threemaSenderIdentity,
+            secret: notification.threemaSecret,
+            text: msg
+        };
+
+        switch (notification.threemaRecipientType) {
+            case "identity":
+                data.to = notification.threemaRecipient;
+                break;
+            case "phone":
+                data.phone = notification.threemaRecipient;
+                break;
+            case "email":
+                data.email = notification.threemaRecipient;
+                break;
+            default:
+                throw new Error(`Unsupported recipient type: ${notification.threemaRecipientType}`);
+        }
+
+        try {
+            await axios.post(url, new URLSearchParams(data), config);
+            return "Threema notification sent successfully.";
+        } catch (error) {
+            const errorMessage = this.handleApiError(error);
+            this.throwGeneralAxiosError(errorMessage);
+        }
+    }
+
+    /**
+     * Handle Threema API errors
+     * @param {any} error The error to handle
+     * @returns {string} Additional error context
+     */
+    handleApiError(error) {
+        if (!error.response) {
+            return error.message;
+        }
+        switch (error.response.status) {
+            case 400:
+                return "Invalid recipient identity or account not set up for basic mode (400).";
+            case 401:
+                return "Incorrect API identity or secret (401).";
+            case 402:
+                return "No credits remaining (402).";
+            case 404:
+                return "Recipient not found (404).";
+            case 413:
+                return "Message is too long (413).";
+            case 500:
+                return "Temporary internal server error (500).";
+            default:
+                return error.message;
+        }
+    }
+}
+
+module.exports = Threema;
diff --git a/server/notification-providers/twilio.js b/server/notification-providers/twilio.js
new file mode 100644
index 0000000..c38a6d7
--- /dev/null
+++ b/server/notification-providers/twilio.js
@@ -0,0 +1,38 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Twilio extends NotificationProvider {
+    name = "twilio";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        let apiKey = notification.twilioApiKey ? notification.twilioApiKey : notification.twilioAccountSID;
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/x-www-form-urlencoded;charset=utf-8",
+                    "Authorization": "Basic " + Buffer.from(apiKey + ":" + notification.twilioAuthToken).toString("base64"),
+                }
+            };
+
+            let data = new URLSearchParams();
+            data.append("To", notification.twilioToNumber);
+            data.append("From", notification.twilioFromNumber);
+            data.append("Body", msg);
+
+            await axios.post(`https://api.twilio.com/2010-04-01/Accounts/${(notification.twilioAccountSID)}/Messages.json`, data, config);
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+}
+
+module.exports = Twilio;
diff --git a/server/notification-providers/webhook.js b/server/notification-providers/webhook.js
new file mode 100644
index 0000000..986986d
--- /dev/null
+++ b/server/notification-providers/webhook.js
@@ -0,0 +1,66 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const FormData = require("form-data");
+const { Liquid } = require("liquidjs");
+
+class Webhook extends NotificationProvider {
+    name = "webhook";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let data = {
+                heartbeat: heartbeatJSON,
+                monitor: monitorJSON,
+                msg,
+            };
+            let config = {
+                headers: {}
+            };
+
+            if (notification.webhookContentType === "form-data") {
+                const formData = new FormData();
+                formData.append("data", JSON.stringify(data));
+                config.headers = formData.getHeaders();
+                data = formData;
+            } else if (notification.webhookContentType === "custom") {
+                // Initialize LiquidJS and parse the custom Body Template
+                const engine = new Liquid();
+                const tpl = engine.parse(notification.webhookCustomBody);
+
+                // Insert templated values into Body
+                data = await engine.render(tpl,
+                    {
+                        msg,
+                        heartbeatJSON,
+                        monitorJSON
+                    });
+            }
+
+            if (notification.webhookAdditionalHeaders) {
+                try {
+                    config.headers = {
+                        ...config.headers,
+                        ...JSON.parse(notification.webhookAdditionalHeaders)
+                    };
+                } catch (err) {
+                    throw "Additional Headers is not a valid JSON";
+                }
+            }
+
+            await axios.post(notification.webhookURL, data, config);
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+
+    }
+
+}
+
+module.exports = Webhook;
diff --git a/server/notification-providers/wecom.js b/server/notification-providers/wecom.js
new file mode 100644
index 0000000..1eb0690
--- /dev/null
+++ b/server/notification-providers/wecom.js
@@ -0,0 +1,51 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class WeCom extends NotificationProvider {
+    name = "WeCom";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json"
+                }
+            };
+            let body = this.composeMessage(heartbeatJSON, msg);
+            await axios.post(`https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=${notification.weComBotKey}`, body, config);
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Generate the message to send
+     * @param {object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @param {string} msg General message
+     * @returns {object} Message
+     */
+    composeMessage(heartbeatJSON, msg) {
+        let title = "UptimeKuma Message";
+        if (msg != null && heartbeatJSON != null && heartbeatJSON["status"] === UP) {
+            title = "UptimeKuma Monitor Up";
+        }
+        if (msg != null && heartbeatJSON != null && heartbeatJSON["status"] === DOWN) {
+            title = "UptimeKuma Monitor Down";
+        }
+        return {
+            msgtype: "text",
+            text: {
+                content: title + "\n" + msg
+            }
+        };
+    }
+}
+
+module.exports = WeCom;
diff --git a/server/notification-providers/whapi.js b/server/notification-providers/whapi.js
new file mode 100644
index 0000000..70e0fbb
--- /dev/null
+++ b/server/notification-providers/whapi.js
@@ -0,0 +1,39 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Whapi extends NotificationProvider {
+    name = "whapi";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const config = {
+                headers: {
+                    "Accept": "application/json",
+                    "Content-Type": "application/json",
+                    "Authorization": "Bearer " + notification.whapiAuthToken,
+                }
+            };
+
+            let data = {
+                "to": notification.whapiRecipient,
+                "body": msg,
+            };
+
+            let url = (notification.whapiApiUrl || "https://gate.whapi.cloud/").replace(/\/+$/, "") + "/messages/text";
+
+            await axios.post(url, data, config);
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+}
+
+module.exports = Whapi;
diff --git a/server/notification-providers/wpush.js b/server/notification-providers/wpush.js
new file mode 100644
index 0000000..db043f9
--- /dev/null
+++ b/server/notification-providers/wpush.js
@@ -0,0 +1,51 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class WPush extends NotificationProvider {
+    name = "WPush";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const context = {
+                "title": this.checkStatus(heartbeatJSON, monitorJSON),
+                "content": msg,
+                "apikey": notification.wpushAPIkey,
+                "channel": notification.wpushChannel
+            };
+            const result = await axios.post("https://api.wpush.cn/api/v1/send", context);
+            if (result.data.code !== 0) {
+                throw result.data.message;
+            }
+
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Get the formatted title for message
+     * @param {?object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @param {?object} monitorJSON Monitor details (For Up/Down only)
+     * @returns {string} Formatted title
+     */
+    checkStatus(heartbeatJSON, monitorJSON) {
+        let title = "UptimeKuma Message";
+        if (heartbeatJSON != null && heartbeatJSON["status"] === UP) {
+            title = "UptimeKuma Monitor Up " + monitorJSON["name"];
+        }
+        if (heartbeatJSON != null && heartbeatJSON["status"] === DOWN) {
+            title = "UptimeKuma Monitor Down " + monitorJSON["name"];
+        }
+        return title;
+    }
+}
+
+module.exports = WPush;
diff --git a/server/notification-providers/zoho-cliq.js b/server/notification-providers/zoho-cliq.js
new file mode 100644
index 0000000..3a504de
--- /dev/null
+++ b/server/notification-providers/zoho-cliq.js
@@ -0,0 +1,101 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class ZohoCliq extends NotificationProvider {
+    name = "ZohoCliq";
+
+    /**
+     * Generate the message to send
+     * @param {const} status The status constant
+     * @param {string} monitorName Name of monitor
+     * @returns {string} Status message
+     */
+    _statusMessageFactory = (status, monitorName) => {
+        if (status === DOWN) {
+            return `🔴 [${monitorName}] went down\n`;
+        } else if (status === UP) {
+            return `### ✅ [${monitorName}] is back online\n`;
+        }
+        return "Notification\n";
+    };
+
+    /**
+     * Send the notification
+     * @param {string} webhookUrl URL to send the request to
+     * @param {Array} payload Payload generated by _notificationPayloadFactory
+     * @returns {Promise<void>}
+     */
+    _sendNotification = async (webhookUrl, payload) => {
+        await axios.post(webhookUrl, { text: payload.join("\n") });
+    };
+
+    /**
+     * Generate payload for notification
+     * @param {object} args Method arguments
+     * @param {const} args.status The status of the monitor
+     * @param {string} args.monitorMessage Message to send
+     * @param {string} args.monitorName Name of monitor affected
+     * @param {string} args.monitorUrl URL of monitor affected
+     * @returns {Array} Notification payload
+     */
+    _notificationPayloadFactory = ({
+        status,
+        monitorMessage,
+        monitorName,
+        monitorUrl,
+    }) => {
+        const payload = [];
+        payload.push(this._statusMessageFactory(status, monitorName));
+        payload.push(`*Description:* ${monitorMessage}`);
+
+        if (monitorUrl && monitorUrl !== "https://") {
+            payload.push(`*URL:* ${monitorUrl}`);
+        }
+
+        return payload;
+    };
+
+    /**
+     * Send a general notification
+     * @param {string} webhookUrl URL to send request to
+     * @param {string} msg Message to send
+     * @returns {Promise<void>}
+     */
+    _handleGeneralNotification = (webhookUrl, msg) => {
+        const payload = this._notificationPayloadFactory({
+            monitorMessage: msg
+        });
+
+        return this._sendNotification(webhookUrl, payload);
+    };
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            if (heartbeatJSON == null) {
+                await this._handleGeneralNotification(notification.webhookUrl, msg);
+                return okMsg;
+            }
+
+            const payload = this._notificationPayloadFactory({
+                monitorMessage: heartbeatJSON.msg,
+                monitorName: monitorJSON.name,
+                monitorUrl: this.extractAddress(monitorJSON),
+                status: heartbeatJSON.status
+            });
+
+            await this._sendNotification(notification.webhookUrl, payload);
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = ZohoCliq;
diff --git a/server/notification.js b/server/notification.js
new file mode 100644
index 0000000..e7977eb
--- /dev/null
+++ b/server/notification.js
@@ -0,0 +1,284 @@
+const { R } = require("redbean-node");
+const { log } = require("../src/util");
+const Alerta = require("./notification-providers/alerta");
+const AlertNow = require("./notification-providers/alertnow");
+const AliyunSms = require("./notification-providers/aliyun-sms");
+const Apprise = require("./notification-providers/apprise");
+const Bark = require("./notification-providers/bark");
+const Bitrix24 = require("./notification-providers/bitrix24");
+const ClickSendSMS = require("./notification-providers/clicksendsms");
+const CallMeBot = require("./notification-providers/call-me-bot");
+const SMSC = require("./notification-providers/smsc");
+const DingDing = require("./notification-providers/dingding");
+const Discord = require("./notification-providers/discord");
+const Elks = require("./notification-providers/46elks");
+const Feishu = require("./notification-providers/feishu");
+const FreeMobile = require("./notification-providers/freemobile");
+const GoogleChat = require("./notification-providers/google-chat");
+const Gorush = require("./notification-providers/gorush");
+const Gotify = require("./notification-providers/gotify");
+const GrafanaOncall = require("./notification-providers/grafana-oncall");
+const HomeAssistant = require("./notification-providers/home-assistant");
+const HeiiOnCall = require("./notification-providers/heii-oncall");
+const Keep = require("./notification-providers/keep");
+const Kook = require("./notification-providers/kook");
+const Line = require("./notification-providers/line");
+const LineNotify = require("./notification-providers/linenotify");
+const LunaSea = require("./notification-providers/lunasea");
+const Matrix = require("./notification-providers/matrix");
+const Mattermost = require("./notification-providers/mattermost");
+const Nostr = require("./notification-providers/nostr");
+const Ntfy = require("./notification-providers/ntfy");
+const Octopush = require("./notification-providers/octopush");
+const OneBot = require("./notification-providers/onebot");
+const Opsgenie = require("./notification-providers/opsgenie");
+const PagerDuty = require("./notification-providers/pagerduty");
+const FlashDuty = require("./notification-providers/flashduty");
+const PagerTree = require("./notification-providers/pagertree");
+const PromoSMS = require("./notification-providers/promosms");
+const Pushbullet = require("./notification-providers/pushbullet");
+const PushDeer = require("./notification-providers/pushdeer");
+const Pushover = require("./notification-providers/pushover");
+const Pushy = require("./notification-providers/pushy");
+const RocketChat = require("./notification-providers/rocket-chat");
+const SerwerSMS = require("./notification-providers/serwersms");
+const Signal = require("./notification-providers/signal");
+const SIGNL4 = require("./notification-providers/signl4");
+const Slack = require("./notification-providers/slack");
+const SMSPartner = require("./notification-providers/smspartner");
+const SMSEagle = require("./notification-providers/smseagle");
+const SMTP = require("./notification-providers/smtp");
+const Squadcast = require("./notification-providers/squadcast");
+const Stackfield = require("./notification-providers/stackfield");
+const Teams = require("./notification-providers/teams");
+const TechulusPush = require("./notification-providers/techulus-push");
+const Telegram = require("./notification-providers/telegram");
+const Threema = require("./notification-providers/threema");
+const Twilio = require("./notification-providers/twilio");
+const Splunk = require("./notification-providers/splunk");
+const Webhook = require("./notification-providers/webhook");
+const WeCom = require("./notification-providers/wecom");
+const GoAlert = require("./notification-providers/goalert");
+const SMSManager = require("./notification-providers/smsmanager");
+const ServerChan = require("./notification-providers/serverchan");
+const ZohoCliq = require("./notification-providers/zoho-cliq");
+const SevenIO = require("./notification-providers/sevenio");
+const Whapi = require("./notification-providers/whapi");
+const GtxMessaging = require("./notification-providers/gtx-messaging");
+const Cellsynt = require("./notification-providers/cellsynt");
+const Onesender = require("./notification-providers/onesender");
+const Wpush = require("./notification-providers/wpush");
+const SendGrid = require("./notification-providers/send-grid");
+
+class Notification {
+
+    providerList = {};
+
+    /**
+     * Initialize the notification providers
+     * @returns {void}
+     * @throws Notification provider does not have a name
+     * @throws Duplicate notification providers in list
+     */
+    static init() {
+        log.debug("notification", "Prepare Notification Providers");
+
+        this.providerList = {};
+
+        const list = [
+            new Alerta(),
+            new AlertNow(),
+            new AliyunSms(),
+            new Apprise(),
+            new Bark(),
+            new Bitrix24(),
+            new ClickSendSMS(),
+            new CallMeBot(),
+            new SMSC(),
+            new DingDing(),
+            new Discord(),
+            new Elks(),
+            new Feishu(),
+            new FreeMobile(),
+            new GoogleChat(),
+            new Gorush(),
+            new Gotify(),
+            new GrafanaOncall(),
+            new HomeAssistant(),
+            new HeiiOnCall(),
+            new Keep(),
+            new Kook(),
+            new Line(),
+            new LineNotify(),
+            new LunaSea(),
+            new Matrix(),
+            new Mattermost(),
+            new Nostr(),
+            new Ntfy(),
+            new Octopush(),
+            new OneBot(),
+            new Onesender(),
+            new Opsgenie(),
+            new PagerDuty(),
+            new FlashDuty(),
+            new PagerTree(),
+            new PromoSMS(),
+            new Pushbullet(),
+            new PushDeer(),
+            new Pushover(),
+            new Pushy(),
+            new RocketChat(),
+            new ServerChan(),
+            new SerwerSMS(),
+            new Signal(),
+            new SIGNL4(),
+            new SMSManager(),
+            new SMSPartner(),
+            new Slack(),
+            new SMSEagle(),
+            new SMTP(),
+            new Squadcast(),
+            new Stackfield(),
+            new Teams(),
+            new TechulusPush(),
+            new Telegram(),
+            new Threema(),
+            new Twilio(),
+            new Splunk(),
+            new Webhook(),
+            new WeCom(),
+            new GoAlert(),
+            new ZohoCliq(),
+            new SevenIO(),
+            new Whapi(),
+            new GtxMessaging(),
+            new Cellsynt(),
+            new Wpush(),
+            new SendGrid()
+        ];
+        for (let item of list) {
+            if (! item.name) {
+                throw new Error("Notification provider without name");
+            }
+
+            if (this.providerList[item.name]) {
+                throw new Error("Duplicate notification provider name");
+            }
+            this.providerList[item.name] = item;
+        }
+    }
+
+    /**
+     * Send a notification
+     * @param {BeanModel} notification Notification to send
+     * @param {string} msg General Message
+     * @param {object} monitorJSON Monitor details (For Up/Down only)
+     * @param {object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @returns {Promise<string>} Successful msg
+     * @throws Error with fail msg
+     */
+    static async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        if (this.providerList[notification.type]) {
+            return this.providerList[notification.type].send(notification, msg, monitorJSON, heartbeatJSON);
+        } else {
+            throw new Error("Notification type is not supported");
+        }
+    }
+
+    /**
+     * Save a notification
+     * @param {object} notification Notification to save
+     * @param {?number} notificationID ID of notification to update
+     * @param {number} userID ID of user who adds notification
+     * @returns {Promise<Bean>} Notification that was saved
+     */
+    static async save(notification, notificationID, userID) {
+        let bean;
+
+        if (notificationID) {
+            bean = await R.findOne("notification", " id = ? AND user_id = ? ", [
+                notificationID,
+                userID,
+            ]);
+
+            if (! bean) {
+                throw new Error("notification not found");
+            }
+
+        } else {
+            bean = R.dispense("notification");
+        }
+
+        bean.name = notification.name;
+        bean.user_id = userID;
+        bean.config = JSON.stringify(notification);
+        bean.is_default = notification.isDefault || false;
+        await R.store(bean);
+
+        if (notification.applyExisting) {
+            await applyNotificationEveryMonitor(bean.id, userID);
+        }
+
+        return bean;
+    }
+
+    /**
+     * Delete a notification
+     * @param {number} notificationID ID of notification to delete
+     * @param {number} userID ID of user who created notification
+     * @returns {Promise<void>}
+     */
+    static async delete(notificationID, userID) {
+        let bean = await R.findOne("notification", " id = ? AND user_id = ? ", [
+            notificationID,
+            userID,
+        ]);
+
+        if (! bean) {
+            throw new Error("notification not found");
+        }
+
+        await R.trash(bean);
+    }
+
+    /**
+     * Check if apprise exists
+     * @returns {boolean} Does the command apprise exist?
+     */
+    static checkApprise() {
+        let commandExistsSync = require("command-exists").sync;
+        let exists = commandExistsSync("apprise");
+        return exists;
+    }
+
+}
+
+/**
+ * Apply the notification to every monitor
+ * @param {number} notificationID ID of notification to apply
+ * @param {number} userID ID of user who created notification
+ * @returns {Promise<void>}
+ */
+async function applyNotificationEveryMonitor(notificationID, userID) {
+    let monitors = await R.getAll("SELECT id FROM monitor WHERE user_id = ?", [
+        userID
+    ]);
+
+    for (let i = 0; i < monitors.length; i++) {
+        let checkNotification = await R.findOne("monitor_notification", " monitor_id = ? AND notification_id = ? ", [
+            monitors[i].id,
+            notificationID,
+        ]);
+
+        if (! checkNotification) {
+            let relation = R.dispense("monitor_notification");
+            relation.monitor_id = monitors[i].id;
+            relation.notification_id = notificationID;
+            await R.store(relation);
+        }
+    }
+}
+
+module.exports = {
+    Notification,
+};
diff --git a/server/password-hash.js b/server/password-hash.js
new file mode 100644
index 0000000..83a23d9
--- /dev/null
+++ b/server/password-hash.js
@@ -0,0 +1,44 @@
+const passwordHashOld = require("password-hash");
+const bcrypt = require("bcryptjs");
+const saltRounds = 10;
+
+/**
+ * Hash a password
+ * @param {string} password Password to hash
+ * @returns {string} Hash
+ */
+exports.generate = function (password) {
+    return bcrypt.hashSync(password, saltRounds);
+};
+
+/**
+ * Verify a password against a hash
+ * @param {string} password Password to verify
+ * @param {string} hash Hash to verify against
+ * @returns {boolean} Does the password match the hash?
+ */
+exports.verify = function (password, hash) {
+    if (isSHA1(hash)) {
+        return passwordHashOld.verify(password, hash);
+    }
+
+    return bcrypt.compareSync(password, hash);
+};
+
+/**
+ * Is the hash a SHA1 hash
+ * @param {string} hash Hash to check
+ * @returns {boolean} Is SHA1 hash?
+ */
+function isSHA1(hash) {
+    return (typeof hash === "string" && hash.startsWith("sha1"));
+}
+
+/**
+ * Does the hash need to be rehashed?
+ * @param {string} hash Hash to check
+ * @returns {boolean} Needs to be rehashed?
+ */
+exports.needRehash = function (hash) {
+    return isSHA1(hash);
+};
diff --git a/server/prometheus.js b/server/prometheus.js
new file mode 100644
index 0000000..f26125d
--- /dev/null
+++ b/server/prometheus.js
@@ -0,0 +1,123 @@
+const PrometheusClient = require("prom-client");
+const { log } = require("../src/util");
+
+const commonLabels = [
+    "monitor_name",
+    "monitor_type",
+    "monitor_url",
+    "monitor_hostname",
+    "monitor_port",
+];
+
+const monitorCertDaysRemaining = new PrometheusClient.Gauge({
+    name: "monitor_cert_days_remaining",
+    help: "The number of days remaining until the certificate expires",
+    labelNames: commonLabels
+});
+
+const monitorCertIsValid = new PrometheusClient.Gauge({
+    name: "monitor_cert_is_valid",
+    help: "Is the certificate still valid? (1 = Yes, 0= No)",
+    labelNames: commonLabels
+});
+const monitorResponseTime = new PrometheusClient.Gauge({
+    name: "monitor_response_time",
+    help: "Monitor Response Time (ms)",
+    labelNames: commonLabels
+});
+
+const monitorStatus = new PrometheusClient.Gauge({
+    name: "monitor_status",
+    help: "Monitor Status (1 = UP, 0= DOWN, 2= PENDING, 3= MAINTENANCE)",
+    labelNames: commonLabels
+});
+
+class Prometheus {
+    monitorLabelValues = {};
+
+    /**
+     * @param {object} monitor Monitor object to monitor
+     */
+    constructor(monitor) {
+        this.monitorLabelValues = {
+            monitor_name: monitor.name,
+            monitor_type: monitor.type,
+            monitor_url: monitor.url,
+            monitor_hostname: monitor.hostname,
+            monitor_port: monitor.port
+        };
+    }
+
+    /**
+     * Update the metrics page
+     * @param {object} heartbeat Heartbeat details
+     * @param {object} tlsInfo TLS details
+     * @returns {void}
+     */
+    update(heartbeat, tlsInfo) {
+
+        if (typeof tlsInfo !== "undefined") {
+            try {
+                let isValid;
+                if (tlsInfo.valid === true) {
+                    isValid = 1;
+                } else {
+                    isValid = 0;
+                }
+                monitorCertIsValid.set(this.monitorLabelValues, isValid);
+            } catch (e) {
+                log.error("prometheus", "Caught error");
+                log.error("prometheus", e);
+            }
+
+            try {
+                if (tlsInfo.certInfo != null) {
+                    monitorCertDaysRemaining.set(this.monitorLabelValues, tlsInfo.certInfo.daysRemaining);
+                }
+            } catch (e) {
+                log.error("prometheus", "Caught error");
+                log.error("prometheus", e);
+            }
+        }
+
+        if (heartbeat) {
+            try {
+                monitorStatus.set(this.monitorLabelValues, heartbeat.status);
+            } catch (e) {
+                log.error("prometheus", "Caught error");
+                log.error("prometheus", e);
+            }
+
+            try {
+                if (typeof heartbeat.ping === "number") {
+                    monitorResponseTime.set(this.monitorLabelValues, heartbeat.ping);
+                } else {
+                    // Is it good?
+                    monitorResponseTime.set(this.monitorLabelValues, -1);
+                }
+            } catch (e) {
+                log.error("prometheus", "Caught error");
+                log.error("prometheus", e);
+            }
+        }
+    }
+
+    /**
+     * Remove monitor from prometheus
+     * @returns {void}
+     */
+    remove() {
+        try {
+            monitorCertDaysRemaining.remove(this.monitorLabelValues);
+            monitorCertIsValid.remove(this.monitorLabelValues);
+            monitorResponseTime.remove(this.monitorLabelValues);
+            monitorStatus.remove(this.monitorLabelValues);
+        } catch (e) {
+            console.error(e);
+        }
+    }
+}
+
+module.exports = {
+    Prometheus
+};
diff --git a/server/proxy.js b/server/proxy.js
new file mode 100644
index 0000000..3f3771a
--- /dev/null
+++ b/server/proxy.js
@@ -0,0 +1,202 @@
+const { R } = require("redbean-node");
+const HttpProxyAgent = require("http-proxy-agent");
+const HttpsProxyAgent = require("https-proxy-agent");
+const SocksProxyAgent = require("socks-proxy-agent");
+const { debug } = require("../src/util");
+const { UptimeKumaServer } = require("./uptime-kuma-server");
+const { CookieJar } = require("tough-cookie");
+const { createCookieAgent } = require("http-cookie-agent/http");
+
+class Proxy {
+
+    static SUPPORTED_PROXY_PROTOCOLS = [ "http", "https", "socks", "socks5", "socks5h", "socks4" ];
+
+    /**
+     * Saves and updates given proxy entity
+     * @param {object} proxy Proxy to store
+     * @param {number} proxyID ID of proxy to update
+     * @param {number} userID ID of user the proxy belongs to
+     * @returns {Promise<Bean>} Updated proxy
+     */
+    static async save(proxy, proxyID, userID) {
+        let bean;
+
+        if (proxyID) {
+            bean = await R.findOne("proxy", " id = ? AND user_id = ? ", [ proxyID, userID ]);
+
+            if (!bean) {
+                throw new Error("proxy not found");
+            }
+
+        } else {
+            bean = R.dispense("proxy");
+        }
+
+        // Make sure given proxy protocol is supported
+        if (!this.SUPPORTED_PROXY_PROTOCOLS.includes(proxy.protocol)) {
+            throw new Error(`
+                Unsupported proxy protocol "${proxy.protocol}.
+                Supported protocols are ${this.SUPPORTED_PROXY_PROTOCOLS.join(", ")}."`
+            );
+        }
+
+        // When proxy is default update deactivate old default proxy
+        if (proxy.default) {
+            await R.exec("UPDATE proxy SET `default` = 0 WHERE `default` = 1");
+        }
+
+        bean.user_id = userID;
+        bean.protocol = proxy.protocol;
+        bean.host = proxy.host;
+        bean.port = proxy.port;
+        bean.auth = proxy.auth;
+        bean.username = proxy.username;
+        bean.password = proxy.password;
+        bean.active = proxy.active || true;
+        bean.default = proxy.default || false;
+
+        await R.store(bean);
+
+        if (proxy.applyExisting) {
+            await applyProxyEveryMonitor(bean.id, userID);
+        }
+
+        return bean;
+    }
+
+    /**
+     * Deletes proxy with given id and removes it from monitors
+     * @param {number} proxyID ID of proxy to delete
+     * @param {number} userID ID of proxy owner
+     * @returns {Promise<void>}
+     */
+    static async delete(proxyID, userID) {
+        const bean = await R.findOne("proxy", " id = ? AND user_id = ? ", [ proxyID, userID ]);
+
+        if (!bean) {
+            throw new Error("proxy not found");
+        }
+
+        // Delete removed proxy from monitors if exists
+        await R.exec("UPDATE monitor SET proxy_id = null WHERE proxy_id = ?", [ proxyID ]);
+
+        // Delete proxy from list
+        await R.trash(bean);
+    }
+
+    /**
+     * Create HTTP and HTTPS agents related with given proxy bean object
+     * @param {object} proxy proxy bean object
+     * @param {object} options http and https agent options
+     * @returns {{httpAgent: Agent, httpsAgent: Agent}} New HTTP and HTTPS agents
+     * @throws Proxy protocol is unsupported
+     */
+    static createAgents(proxy, options) {
+        const { httpAgentOptions, httpsAgentOptions } = options || {};
+        let agent;
+        let httpAgent;
+        let httpsAgent;
+
+        let jar = new CookieJar();
+
+        const proxyOptions = {
+            protocol: proxy.protocol,
+            host: proxy.host,
+            port: proxy.port,
+            cookies: { jar },
+        };
+
+        if (proxy.auth) {
+            proxyOptions.auth = `${proxy.username}:${proxy.password}`;
+        }
+
+        debug(`Proxy Options: ${JSON.stringify(proxyOptions)}`);
+        debug(`HTTP Agent Options: ${JSON.stringify(httpAgentOptions)}`);
+        debug(`HTTPS Agent Options: ${JSON.stringify(httpsAgentOptions)}`);
+
+        switch (proxy.protocol) {
+            case "http":
+            case "https":
+                // eslint-disable-next-line no-case-declarations
+                const HttpCookieProxyAgent = createCookieAgent(HttpProxyAgent);
+                // eslint-disable-next-line no-case-declarations
+                const HttpsCookieProxyAgent = createCookieAgent(HttpsProxyAgent);
+
+                httpAgent = new HttpCookieProxyAgent({
+                    ...httpAgentOptions || {},
+                    ...proxyOptions,
+                });
+
+                httpsAgent = new HttpsCookieProxyAgent({
+                    ...httpsAgentOptions || {},
+                    ...proxyOptions,
+                });
+                break;
+            case "socks":
+            case "socks5":
+            case "socks5h":
+            case "socks4":
+                // eslint-disable-next-line no-case-declarations
+                const SocksCookieProxyAgent = createCookieAgent(SocksProxyAgent);
+                agent = new SocksCookieProxyAgent({
+                    ...httpAgentOptions,
+                    ...httpsAgentOptions,
+                    ...proxyOptions,
+                    tls: {
+                        rejectUnauthorized: httpsAgentOptions.rejectUnauthorized,
+                    },
+                });
+
+                httpAgent = agent;
+                httpsAgent = agent;
+                break;
+
+            default: throw new Error(`Unsupported proxy protocol provided. ${proxy.protocol}`);
+        }
+
+        return {
+            httpAgent,
+            httpsAgent
+        };
+    }
+
+    /**
+     * Reload proxy settings for current monitors
+     * @returns {Promise<void>}
+     */
+    static async reloadProxy() {
+        const server = UptimeKumaServer.getInstance();
+
+        let updatedList = await R.getAssoc("SELECT id, proxy_id FROM monitor");
+
+        for (let monitorID in server.monitorList) {
+            let monitor = server.monitorList[monitorID];
+
+            if (updatedList[monitorID]) {
+                monitor.proxy_id = updatedList[monitorID].proxy_id;
+            }
+        }
+    }
+}
+
+/**
+ * Applies given proxy id to monitors
+ * @param {number} proxyID ID of proxy to apply
+ * @param {number} userID ID of proxy owner
+ * @returns {Promise<void>}
+ */
+async function applyProxyEveryMonitor(proxyID, userID) {
+    // Find all monitors with id and proxy id
+    const monitors = await R.getAll("SELECT id, proxy_id FROM monitor WHERE user_id = ?", [ userID ]);
+
+    // Update proxy id not match with given proxy id
+    for (const monitor of monitors) {
+        if (monitor.proxy_id !== proxyID) {
+            await R.exec("UPDATE monitor SET proxy_id = ? WHERE id = ?", [ proxyID, monitor.id ]);
+        }
+    }
+}
+
+module.exports = {
+    Proxy,
+};
diff --git a/server/rate-limiter.js b/server/rate-limiter.js
new file mode 100644
index 0000000..3c269b6
--- /dev/null
+++ b/server/rate-limiter.js
@@ -0,0 +1,75 @@
+const { RateLimiter } = require("limiter");
+const { log } = require("../src/util");
+
+class KumaRateLimiter {
+    /**
+     * @param {object} config Rate limiter configuration object
+     */
+    constructor(config) {
+        this.errorMessage = config.errorMessage;
+        this.rateLimiter = new RateLimiter(config);
+    }
+
+    /**
+     * Callback for pass
+     * @callback passCB
+     * @param {object} err Too many requests
+     */
+
+    /**
+     * Should the request be passed through
+     * @param {passCB} callback Callback function to call with decision
+     * @param {number} num Number of tokens to remove
+     * @returns {Promise<boolean>} Should the request be allowed?
+     */
+    async pass(callback, num = 1) {
+        const remainingRequests = await this.removeTokens(num);
+        log.info("rate-limit", "remaining requests: " + remainingRequests);
+        if (remainingRequests < 0) {
+            if (callback) {
+                callback({
+                    ok: false,
+                    msg: this.errorMessage,
+                });
+            }
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Remove a given number of tokens
+     * @param {number} num Number of tokens to remove
+     * @returns {Promise<number>} Number of remaining tokens
+     */
+    async removeTokens(num = 1) {
+        return await this.rateLimiter.removeTokens(num);
+    }
+}
+
+const loginRateLimiter = new KumaRateLimiter({
+    tokensPerInterval: 20,
+    interval: "minute",
+    fireImmediately: true,
+    errorMessage: "Too frequently, try again later."
+});
+
+const apiRateLimiter = new KumaRateLimiter({
+    tokensPerInterval: 60,
+    interval: "minute",
+    fireImmediately: true,
+    errorMessage: "Too frequently, try again later."
+});
+
+const twoFaRateLimiter = new KumaRateLimiter({
+    tokensPerInterval: 30,
+    interval: "minute",
+    fireImmediately: true,
+    errorMessage: "Too frequently, try again later."
+});
+
+module.exports = {
+    loginRateLimiter,
+    apiRateLimiter,
+    twoFaRateLimiter,
+};
diff --git a/server/remote-browser.js b/server/remote-browser.js
new file mode 100644
index 0000000..da8e9a5
--- /dev/null
+++ b/server/remote-browser.js
@@ -0,0 +1,74 @@
+const { R } = require("redbean-node");
+
+class RemoteBrowser {
+
+    /**
+     * Gets remote browser from ID
+     * @param {number} remoteBrowserID ID of the remote browser
+     * @param {number} userID ID of the user who created the remote browser
+     * @returns {Promise<Bean>} Remote Browser
+     */
+    static async get(remoteBrowserID, userID) {
+        let bean = await R.findOne("remote_browser", " id = ? AND user_id = ? ", [ remoteBrowserID, userID ]);
+
+        if (!bean) {
+            throw new Error("Remote browser not found");
+        }
+
+        return bean;
+    }
+
+    /**
+     * Save a Remote Browser
+     * @param {object} remoteBrowser Remote Browser to save
+     * @param {?number} remoteBrowserID ID of the Remote Browser to update
+     * @param {number} userID ID of the user who adds the Remote Browser
+     * @returns {Promise<Bean>} Updated Remote Browser
+     */
+    static async save(remoteBrowser, remoteBrowserID, userID) {
+        let bean;
+
+        if (remoteBrowserID) {
+            bean = await R.findOne("remote_browser", " id = ? AND user_id = ? ", [ remoteBrowserID, userID ]);
+
+            if (!bean) {
+                throw new Error("Remote browser not found");
+            }
+
+        } else {
+            bean = R.dispense("remote_browser");
+        }
+
+        bean.user_id = userID;
+        bean.name = remoteBrowser.name;
+        bean.url = remoteBrowser.url;
+
+        await R.store(bean);
+
+        return bean;
+    }
+
+    /**
+     * Delete a Remote Browser
+     * @param {number} remoteBrowserID ID of the Remote Browser to delete
+     * @param {number} userID ID of the user who created the Remote Browser
+     * @returns {Promise<void>}
+     */
+    static async delete(remoteBrowserID, userID) {
+        let bean = await R.findOne("remote_browser", " id = ? AND user_id = ? ", [ remoteBrowserID, userID ]);
+
+        if (!bean) {
+            throw new Error("Remote Browser not found");
+        }
+
+        // Delete removed remote browser from monitors if exists
+        await R.exec("UPDATE monitor SET remote_browser = null WHERE remote_browser = ?", [ remoteBrowserID ]);
+
+        await R.trash(bean);
+    }
+
+}
+
+module.exports = {
+    RemoteBrowser,
+};
diff --git a/server/routers/api-router.js b/server/routers/api-router.js
new file mode 100644
index 0000000..ed6db2c
--- /dev/null
+++ b/server/routers/api-router.js
@@ -0,0 +1,631 @@
+let express = require("express");
+const {
+    setting,
+    allowDevAllOrigin,
+    allowAllOrigin,
+    percentageToColor,
+    filterAndJoin,
+    sendHttpError,
+} = require("../util-server");
+const { R } = require("redbean-node");
+const apicache = require("../modules/apicache");
+const Monitor = require("../model/monitor");
+const dayjs = require("dayjs");
+const { UP, MAINTENANCE, DOWN, PENDING, flipStatus, log, badgeConstants } = require("../../src/util");
+const StatusPage = require("../model/status_page");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const { makeBadge } = require("badge-maker");
+const { Prometheus } = require("../prometheus");
+const Database = require("../database");
+const { UptimeCalculator } = require("../uptime-calculator");
+
+let router = express.Router();
+
+let cache = apicache.middleware;
+const server = UptimeKumaServer.getInstance();
+let io = server.io;
+
+router.get("/api/entry-page", async (request, response) => {
+    allowDevAllOrigin(response);
+
+    let result = { };
+    let hostname = request.hostname;
+    if ((await setting("trustProxy")) && request.headers["x-forwarded-host"]) {
+        hostname = request.headers["x-forwarded-host"];
+    }
+
+    if (hostname in StatusPage.domainMappingList) {
+        result.type = "statusPageMatchedDomain";
+        result.statusPageSlug = StatusPage.domainMappingList[hostname];
+    } else {
+        result.type = "entryPage";
+        result.entryPage = server.entryPage;
+    }
+    response.json(result);
+});
+
+router.all("/api/push/:pushToken", async (request, response) => {
+    try {
+        let pushToken = request.params.pushToken;
+        let msg = request.query.msg || "OK";
+        let ping = parseFloat(request.query.ping) || null;
+        let statusString = request.query.status || "up";
+        let status = (statusString === "up") ? UP : DOWN;
+
+        let monitor = await R.findOne("monitor", " push_token = ? AND active = 1 ", [
+            pushToken
+        ]);
+
+        if (! monitor) {
+            throw new Error("Monitor not found or not active.");
+        }
+
+        const previousHeartbeat = await Monitor.getPreviousHeartbeat(monitor.id);
+
+        let isFirstBeat = true;
+
+        let bean = R.dispense("heartbeat");
+        bean.time = R.isoDateTimeMillis(dayjs.utc());
+        bean.monitor_id = monitor.id;
+        bean.ping = ping;
+        bean.msg = msg;
+        bean.downCount = previousHeartbeat?.downCount || 0;
+
+        if (previousHeartbeat) {
+            isFirstBeat = false;
+            bean.duration = dayjs(bean.time).diff(dayjs(previousHeartbeat.time), "second");
+        }
+
+        if (await Monitor.isUnderMaintenance(monitor.id)) {
+            msg = "Monitor under maintenance";
+            bean.status = MAINTENANCE;
+        } else {
+            determineStatus(status, previousHeartbeat, monitor.maxretries, monitor.isUpsideDown(), bean);
+        }
+
+        // Calculate uptime
+        let uptimeCalculator = await UptimeCalculator.getUptimeCalculator(monitor.id);
+        let endTimeDayjs = await uptimeCalculator.update(bean.status, parseFloat(bean.ping));
+        bean.end_time = R.isoDateTimeMillis(endTimeDayjs);
+
+        log.debug("router", `/api/push/ called at ${dayjs().format("YYYY-MM-DD HH:mm:ss.SSS")}`);
+        log.debug("router", "PreviousStatus: " + previousHeartbeat?.status);
+        log.debug("router", "Current Status: " + bean.status);
+
+        bean.important = Monitor.isImportantBeat(isFirstBeat, previousHeartbeat?.status, status);
+
+        if (Monitor.isImportantForNotification(isFirstBeat, previousHeartbeat?.status, status)) {
+            // Reset down count
+            bean.downCount = 0;
+
+            log.debug("monitor", `[${this.name}] sendNotification`);
+            await Monitor.sendNotification(isFirstBeat, monitor, bean);
+        } else {
+            if (bean.status === DOWN && this.resendInterval > 0) {
+                ++bean.downCount;
+                if (bean.downCount >= this.resendInterval) {
+                    // Send notification again, because we are still DOWN
+                    log.debug("monitor", `[${this.name}] sendNotification again: Down Count: ${bean.downCount} | Resend Interval: ${this.resendInterval}`);
+                    await Monitor.sendNotification(isFirstBeat, this, bean);
+
+                    // Reset down count
+                    bean.downCount = 0;
+                }
+            }
+        }
+
+        await R.store(bean);
+
+        io.to(monitor.user_id).emit("heartbeat", bean.toJSON());
+
+        Monitor.sendStats(io, monitor.id, monitor.user_id);
+        new Prometheus(monitor).update(bean, undefined);
+
+        response.json({
+            ok: true,
+        });
+    } catch (e) {
+        response.status(404).json({
+            ok: false,
+            msg: e.message
+        });
+    }
+});
+
+router.get("/api/badge/:id/status", cache("5 minutes"), async (request, response) => {
+    allowAllOrigin(response);
+
+    const {
+        label,
+        upLabel = "Up",
+        downLabel = "Down",
+        pendingLabel = "Pending",
+        maintenanceLabel = "Maintenance",
+        upColor = badgeConstants.defaultUpColor,
+        downColor = badgeConstants.defaultDownColor,
+        pendingColor = badgeConstants.defaultPendingColor,
+        maintenanceColor = badgeConstants.defaultMaintenanceColor,
+        style = badgeConstants.defaultStyle,
+        value, // for demo purpose only
+    } = request.query;
+
+    try {
+        const requestedMonitorId = parseInt(request.params.id, 10);
+        const overrideValue = value !== undefined ? parseInt(value) : undefined;
+
+        let publicMonitor = await R.getRow(`
+                SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+                WHERE monitor_group.group_id = \`group\`.id
+                AND monitor_group.monitor_id = ?
+                AND public = 1
+            `,
+        [ requestedMonitorId ]
+        );
+
+        const badgeValues = { style };
+
+        if (!publicMonitor) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non exsitant
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+        } else {
+            const heartbeat = await Monitor.getPreviousHeartbeat(requestedMonitorId);
+            const state = overrideValue !== undefined ? overrideValue : heartbeat.status;
+
+            if (label === undefined) {
+                badgeValues.label = "Status";
+            } else {
+                badgeValues.label = label;
+            }
+            switch (state) {
+                case DOWN:
+                    badgeValues.color = downColor;
+                    badgeValues.message = downLabel;
+                    break;
+                case UP:
+                    badgeValues.color = upColor;
+                    badgeValues.message = upLabel;
+                    break;
+                case PENDING:
+                    badgeValues.color = pendingColor;
+                    badgeValues.message = pendingLabel;
+                    break;
+                case MAINTENANCE:
+                    badgeValues.color = maintenanceColor;
+                    badgeValues.message = maintenanceLabel;
+                    break;
+                default:
+                    badgeValues.color = badgeConstants.naColor;
+                    badgeValues.message = "N/A";
+            }
+        }
+
+        // build the svg based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+router.get("/api/badge/:id/uptime/:duration?", cache("5 minutes"), async (request, response) => {
+    allowAllOrigin(response);
+
+    const {
+        label,
+        labelPrefix,
+        labelSuffix = badgeConstants.defaultUptimeLabelSuffix,
+        prefix,
+        suffix = badgeConstants.defaultUptimeValueSuffix,
+        color,
+        labelColor,
+        style = badgeConstants.defaultStyle,
+        value, // for demo purpose only
+    } = request.query;
+
+    try {
+        const requestedMonitorId = parseInt(request.params.id, 10);
+        // if no duration is given, set value to 24 (h)
+        let requestedDuration = request.params.duration !== undefined ? request.params.duration : "24h";
+        const overrideValue = value && parseFloat(value);
+
+        if (/^[0-9]+$/.test(requestedDuration)) {
+            requestedDuration = `${requestedDuration}h`;
+        }
+
+        let publicMonitor = await R.getRow(`
+                SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+                WHERE monitor_group.group_id = \`group\`.id
+                AND monitor_group.monitor_id = ?
+                AND public = 1
+            `,
+        [ requestedMonitorId ]
+        );
+
+        const badgeValues = { style };
+
+        if (!publicMonitor) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+        } else {
+            const uptimeCalculator = await UptimeCalculator.getUptimeCalculator(requestedMonitorId);
+            const uptime = overrideValue ?? uptimeCalculator.getDataByDuration(requestedDuration).uptime;
+
+            // limit the displayed uptime percentage to four (two, when displayed as percent) decimal digits
+            const cleanUptime = (uptime * 100).toPrecision(4);
+
+            // use a given, custom color or calculate one based on the uptime value
+            badgeValues.color = color ?? percentageToColor(uptime);
+            // use a given, custom labelColor or use the default badge label color (defined by badge-maker)
+            badgeValues.labelColor = labelColor ?? "";
+            // build a label string. If a custom label is given, override the default one (requestedDuration)
+            badgeValues.label = filterAndJoin([
+                labelPrefix,
+                label ?? `Uptime (${requestedDuration.slice(0, -1)}${labelSuffix})`,
+            ]);
+            badgeValues.message = filterAndJoin([ prefix, cleanUptime, suffix ]);
+        }
+
+        // build the SVG based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+router.get("/api/badge/:id/ping/:duration?", cache("5 minutes"), async (request, response) => {
+    allowAllOrigin(response);
+
+    const {
+        label,
+        labelPrefix,
+        labelSuffix = badgeConstants.defaultPingLabelSuffix,
+        prefix,
+        suffix = badgeConstants.defaultPingValueSuffix,
+        color = badgeConstants.defaultPingColor,
+        labelColor,
+        style = badgeConstants.defaultStyle,
+        value, // for demo purpose only
+    } = request.query;
+
+    try {
+        const requestedMonitorId = parseInt(request.params.id, 10);
+
+        // Default duration is 24 (h) if not defined in queryParam, limited to 720h (30d)
+        let requestedDuration = request.params.duration !== undefined ? request.params.duration : "24h";
+        const overrideValue = value && parseFloat(value);
+
+        if (/^[0-9]+$/.test(requestedDuration)) {
+            requestedDuration = `${requestedDuration}h`;
+        }
+
+        // Check if monitor is public
+
+        const uptimeCalculator = await UptimeCalculator.getUptimeCalculator(requestedMonitorId);
+        const publicAvgPing = uptimeCalculator.getDataByDuration(requestedDuration).avgPing;
+
+        const badgeValues = { style };
+
+        if (!publicAvgPing) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non exsitant
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+        } else {
+            const avgPing = parseInt(overrideValue ?? publicAvgPing);
+
+            badgeValues.color = color;
+            // use a given, custom labelColor or use the default badge label color (defined by badge-maker)
+            badgeValues.labelColor = labelColor ?? "";
+            // build a lable string. If a custom label is given, override the default one (requestedDuration)
+            badgeValues.label = filterAndJoin([ labelPrefix, label ?? `Avg. Ping (${requestedDuration.slice(0, -1)}${labelSuffix})` ]);
+            badgeValues.message = filterAndJoin([ prefix, avgPing, suffix ]);
+        }
+
+        // build the SVG based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+router.get("/api/badge/:id/avg-response/:duration?", cache("5 minutes"), async (request, response) => {
+    allowAllOrigin(response);
+
+    const {
+        label,
+        labelPrefix,
+        labelSuffix,
+        prefix,
+        suffix = badgeConstants.defaultPingValueSuffix,
+        color = badgeConstants.defaultPingColor,
+        labelColor,
+        style = badgeConstants.defaultStyle,
+        value, // for demo purpose only
+    } = request.query;
+
+    try {
+        const requestedMonitorId = parseInt(request.params.id, 10);
+
+        // Default duration is 24 (h) if not defined in queryParam, limited to 720h (30d)
+        const requestedDuration = Math.min(
+            request.params.duration
+                ? parseInt(request.params.duration, 10)
+                : 24,
+            720
+        );
+        const overrideValue = value && parseFloat(value);
+
+        const sqlHourOffset = Database.sqlHourOffset();
+
+        const publicAvgPing = parseInt(await R.getCell(`
+            SELECT AVG(ping) FROM monitor_group, \`group\`, heartbeat
+            WHERE monitor_group.group_id = \`group\`.id
+            AND heartbeat.time > ${sqlHourOffset}
+            AND heartbeat.ping IS NOT NULL
+            AND public = 1
+            AND heartbeat.monitor_id = ?
+            `,
+        [ -requestedDuration, requestedMonitorId ]
+        ));
+
+        const badgeValues = { style };
+
+        if (!publicAvgPing) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+        } else {
+            const avgPing = parseInt(overrideValue ?? publicAvgPing);
+
+            badgeValues.color = color;
+            // use a given, custom labelColor or use the default badge label color (defined by badge-maker)
+            badgeValues.labelColor = labelColor ?? "";
+            // build a label string. If a custom label is given, override the default one (requestedDuration)
+            badgeValues.label = filterAndJoin([
+                labelPrefix,
+                label ?? `Avg. Response (${requestedDuration}h)`,
+                labelSuffix,
+            ]);
+            badgeValues.message = filterAndJoin([ prefix, avgPing, suffix ]);
+        }
+
+        // build the SVG based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+router.get("/api/badge/:id/cert-exp", cache("5 minutes"), async (request, response) => {
+    allowAllOrigin(response);
+
+    const date = request.query.date;
+
+    const {
+        label,
+        labelPrefix,
+        labelSuffix,
+        prefix,
+        suffix = date ? "" : badgeConstants.defaultCertExpValueSuffix,
+        upColor = badgeConstants.defaultUpColor,
+        warnColor = badgeConstants.defaultWarnColor,
+        downColor = badgeConstants.defaultDownColor,
+        warnDays = badgeConstants.defaultCertExpireWarnDays,
+        downDays = badgeConstants.defaultCertExpireDownDays,
+        labelColor,
+        style = badgeConstants.defaultStyle,
+        value, // for demo purpose only
+    } = request.query;
+
+    try {
+        const requestedMonitorId = parseInt(request.params.id, 10);
+
+        const overrideValue = value && parseFloat(value);
+
+        let publicMonitor = await R.getRow(`
+            SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+            WHERE monitor_group.group_id = \`group\`.id
+            AND monitor_group.monitor_id = ?
+            AND public = 1
+            `,
+        [ requestedMonitorId ]
+        );
+
+        const badgeValues = { style };
+
+        if (!publicMonitor) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+        } else {
+            const tlsInfoBean = await R.findOne("monitor_tls_info", "monitor_id = ?", [
+                requestedMonitorId,
+            ]);
+
+            if (!tlsInfoBean) {
+                // return a "No/Bad Cert" badge in naColor (grey), if no cert saved (does not save bad certs?)
+                badgeValues.message = "No/Bad Cert";
+                badgeValues.color = badgeConstants.naColor;
+            } else {
+                const tlsInfo = JSON.parse(tlsInfoBean.info_json);
+
+                if (!tlsInfo.valid) {
+                    // return a "Bad Cert" badge in naColor (grey), when cert is not valid
+                    badgeValues.message = "Bad Cert";
+                    badgeValues.color = downColor;
+                } else {
+                    const daysRemaining = parseInt(overrideValue ?? tlsInfo.certInfo.daysRemaining);
+
+                    if (daysRemaining > warnDays) {
+                        badgeValues.color = upColor;
+                    } else if (daysRemaining > downDays) {
+                        badgeValues.color = warnColor;
+                    } else {
+                        badgeValues.color = downColor;
+                    }
+                    // use a given, custom labelColor or use the default badge label color (defined by badge-maker)
+                    badgeValues.labelColor = labelColor ?? "";
+                    // build a label string. If a custom label is given, override the default one
+                    badgeValues.label = filterAndJoin([
+                        labelPrefix,
+                        label ?? "Cert Exp.",
+                        labelSuffix,
+                    ]);
+                    badgeValues.message = filterAndJoin([ prefix, date ? tlsInfo.certInfo.validTo : daysRemaining, suffix ]);
+                }
+            }
+        }
+
+        // build the SVG based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+router.get("/api/badge/:id/response", cache("5 minutes"), async (request, response) => {
+    allowAllOrigin(response);
+
+    const {
+        label,
+        labelPrefix,
+        labelSuffix,
+        prefix,
+        suffix = badgeConstants.defaultPingValueSuffix,
+        color = badgeConstants.defaultPingColor,
+        labelColor,
+        style = badgeConstants.defaultStyle,
+        value, // for demo purpose only
+    } = request.query;
+
+    try {
+        const requestedMonitorId = parseInt(request.params.id, 10);
+
+        const overrideValue = value && parseFloat(value);
+
+        let publicMonitor = await R.getRow(`
+            SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+            WHERE monitor_group.group_id = \`group\`.id
+            AND monitor_group.monitor_id = ?
+            AND public = 1
+            `,
+        [ requestedMonitorId ]
+        );
+
+        const badgeValues = { style };
+
+        if (!publicMonitor) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non existent
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+        } else {
+            const heartbeat = await Monitor.getPreviousHeartbeat(
+                requestedMonitorId
+            );
+
+            if (!heartbeat.ping) {
+                // return a "N/A" badge in naColor (grey), if previous heartbeat has no ping
+
+                badgeValues.message = "N/A";
+                badgeValues.color = badgeConstants.naColor;
+            } else {
+                const ping = parseInt(overrideValue ?? heartbeat.ping);
+
+                badgeValues.color = color;
+                // use a given, custom labelColor or use the default badge label color (defined by badge-maker)
+                badgeValues.labelColor = labelColor ?? "";
+                // build a label string. If a custom label is given, override the default one
+                badgeValues.label = filterAndJoin([
+                    labelPrefix,
+                    label ?? "Response",
+                    labelSuffix,
+                ]);
+                badgeValues.message = filterAndJoin([ prefix, ping, suffix ]);
+            }
+        }
+
+        // build the SVG based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+/**
+ * Determines the status of the next beat in the push route handling.
+ * @param {string} status - The reported new status.
+ * @param {object} previousHeartbeat - The previous heartbeat object.
+ * @param {number} maxretries - The maximum number of retries allowed.
+ * @param {boolean} isUpsideDown - Indicates if the monitor is upside down.
+ * @param {object} bean - The new heartbeat object.
+ * @returns {void}
+ */
+function determineStatus(status, previousHeartbeat, maxretries, isUpsideDown, bean) {
+    if (isUpsideDown) {
+        status = flipStatus(status);
+    }
+
+    if (previousHeartbeat) {
+        if (previousHeartbeat.status === UP && status === DOWN) {
+            // Going Down
+            if ((maxretries > 0) && (previousHeartbeat.retries < maxretries)) {
+                // Retries available
+                bean.retries = previousHeartbeat.retries + 1;
+                bean.status = PENDING;
+            } else {
+                // No more retries
+                bean.retries = 0;
+                bean.status = DOWN;
+            }
+        } else if (previousHeartbeat.status === PENDING && status === DOWN && previousHeartbeat.retries < maxretries) {
+            // Retries available
+            bean.retries = previousHeartbeat.retries + 1;
+            bean.status = PENDING;
+        } else {
+            // No more retries or not pending
+            if (status === DOWN) {
+                bean.retries = previousHeartbeat.retries + 1;
+                bean.status = status;
+            } else {
+                bean.retries = 0;
+                bean.status = status;
+            }
+        }
+    } else {
+        // First beat?
+        if (status === DOWN && maxretries > 0) {
+            // Retries available
+            bean.retries = 1;
+            bean.status = PENDING;
+        } else {
+            // Retires not enabled
+            bean.retries = 0;
+            bean.status = status;
+        }
+    }
+}
+
+module.exports = router;
diff --git a/server/routers/status-page-router.js b/server/routers/status-page-router.js
new file mode 100644
index 0000000..b209d33
--- /dev/null
+++ b/server/routers/status-page-router.js
@@ -0,0 +1,241 @@
+let express = require("express");
+const apicache = require("../modules/apicache");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const StatusPage = require("../model/status_page");
+const { allowDevAllOrigin, sendHttpError } = require("../util-server");
+const { R } = require("redbean-node");
+const { badgeConstants } = require("../../src/util");
+const { makeBadge } = require("badge-maker");
+const { UptimeCalculator } = require("../uptime-calculator");
+
+let router = express.Router();
+
+let cache = apicache.middleware;
+const server = UptimeKumaServer.getInstance();
+
+router.get("/status/:slug", cache("5 minutes"), async (request, response) => {
+    let slug = request.params.slug;
+    await StatusPage.handleStatusPageResponse(response, server.indexHTML, slug);
+});
+
+router.get("/status/:slug/rss", cache("5 minutes"), async (request, response) => {
+    let slug = request.params.slug;
+    await StatusPage.handleStatusPageRSSResponse(response, slug);
+});
+
+router.get("/status", cache("5 minutes"), async (request, response) => {
+    let slug = "default";
+    await StatusPage.handleStatusPageResponse(response, server.indexHTML, slug);
+});
+
+router.get("/status-page", cache("5 minutes"), async (request, response) => {
+    let slug = "default";
+    await StatusPage.handleStatusPageResponse(response, server.indexHTML, slug);
+});
+
+// Status page config, incident, monitor list
+router.get("/api/status-page/:slug", cache("5 minutes"), async (request, response) => {
+    allowDevAllOrigin(response);
+    let slug = request.params.slug;
+
+    try {
+        // Get Status Page
+        let statusPage = await R.findOne("status_page", " slug = ? ", [
+            slug
+        ]);
+
+        if (!statusPage) {
+            sendHttpError(response, "Status Page Not Found");
+            return null;
+        }
+
+        let statusPageData = await StatusPage.getStatusPageData(statusPage);
+
+        // Response
+        response.json(statusPageData);
+
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+// Status Page Polling Data
+// Can fetch only if published
+router.get("/api/status-page/heartbeat/:slug", cache("1 minutes"), async (request, response) => {
+    allowDevAllOrigin(response);
+
+    try {
+        let heartbeatList = {};
+        let uptimeList = {};
+
+        let slug = request.params.slug;
+        let statusPageID = await StatusPage.slugToID(slug);
+
+        let monitorIDList = await R.getCol(`
+            SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+            WHERE monitor_group.group_id = \`group\`.id
+            AND public = 1
+            AND \`group\`.status_page_id = ?
+        `, [
+            statusPageID
+        ]);
+
+        for (let monitorID of monitorIDList) {
+            let list = await R.getAll(`
+                    SELECT * FROM heartbeat
+                    WHERE monitor_id = ?
+                    ORDER BY time DESC
+                    LIMIT 50
+            `, [
+                monitorID,
+            ]);
+
+            list = R.convertToBeans("heartbeat", list);
+            heartbeatList[monitorID] = list.reverse().map(row => row.toPublicJSON());
+
+            const uptimeCalculator = await UptimeCalculator.getUptimeCalculator(monitorID);
+            uptimeList[`${monitorID}_24`] = uptimeCalculator.get24Hour().uptime;
+        }
+
+        response.json({
+            heartbeatList,
+            uptimeList
+        });
+
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+// Status page's manifest.json
+router.get("/api/status-page/:slug/manifest.json", cache("1440 minutes"), async (request, response) => {
+    allowDevAllOrigin(response);
+    let slug = request.params.slug;
+
+    try {
+        // Get Status Page
+        let statusPage = await R.findOne("status_page", " slug = ? ", [
+            slug
+        ]);
+
+        if (!statusPage) {
+            sendHttpError(response, "Not Found");
+            return;
+        }
+
+        // Response
+        response.json({
+            "name": statusPage.title,
+            "start_url": "/status/" + statusPage.slug,
+            "display": "standalone",
+            "icons": [
+                {
+                    "src": statusPage.icon,
+                    "sizes": "128x128",
+                    "type": "image/png"
+                }
+            ]
+        });
+
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+// overall status-page status badge
+router.get("/api/status-page/:slug/badge", cache("5 minutes"), async (request, response) => {
+    allowDevAllOrigin(response);
+    const slug = request.params.slug;
+    const statusPageID = await StatusPage.slugToID(slug);
+    const {
+        label,
+        upColor = badgeConstants.defaultUpColor,
+        downColor = badgeConstants.defaultDownColor,
+        partialColor = "#F6BE00",
+        maintenanceColor = "#808080",
+        style = badgeConstants.defaultStyle
+    } = request.query;
+
+    try {
+        let monitorIDList = await R.getCol(`
+            SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+            WHERE monitor_group.group_id = \`group\`.id
+            AND public = 1
+            AND \`group\`.status_page_id = ?
+        `, [
+            statusPageID
+        ]);
+
+        let hasUp = false;
+        let hasDown = false;
+        let hasMaintenance = false;
+
+        for (let monitorID of monitorIDList) {
+            // retrieve the latest heartbeat
+            let beat = await R.getAll(`
+                    SELECT * FROM heartbeat
+                    WHERE monitor_id = ?
+                    ORDER BY time DESC
+                    LIMIT 1
+            `, [
+                monitorID,
+            ]);
+
+            // to be sure, when corresponding monitor not found
+            if (beat.length === 0) {
+                continue;
+            }
+            // handle status of beat
+            if (beat[0].status === 3) {
+                hasMaintenance = true;
+            } else if (beat[0].status === 2) {
+                // ignored
+            } else if (beat[0].status === 1) {
+                hasUp = true;
+            } else {
+                hasDown = true;
+            }
+
+        }
+
+        const badgeValues = { style };
+
+        if (!hasUp && !hasDown && !hasMaintenance) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non exsitant
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+
+        } else {
+            if (hasMaintenance) {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = maintenanceColor;
+                badgeValues.message = "Maintenance";
+            } else if (hasUp && !hasDown) {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = upColor;
+                badgeValues.message = "Up";
+            } else if (hasUp && hasDown) {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = partialColor;
+                badgeValues.message = "Degraded";
+            } else {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = downColor;
+                badgeValues.message = "Down";
+            }
+
+        }
+
+        // build the svg based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
+module.exports = router;
diff --git a/server/server.js b/server/server.js
new file mode 100644
index 0000000..ec5ad49
--- /dev/null
+++ b/server/server.js
@@ -0,0 +1,1877 @@
+/*
+ * Uptime Kuma Server
+ * node "server/server.js"
+ * DO NOT require("./server") in other modules, it likely creates circular dependency!
+ */
+console.log("Welcome to Uptime Kuma");
+
+// As the log function need to use dayjs, it should be very top
+const dayjs = require("dayjs");
+dayjs.extend(require("dayjs/plugin/utc"));
+dayjs.extend(require("./modules/dayjs/plugin/timezone"));
+dayjs.extend(require("dayjs/plugin/customParseFormat"));
+
+// Load environment variables from `.env`
+require("dotenv").config();
+
+// Check Node.js Version
+const nodeVersion = process.versions.node;
+
+// Get the required Node.js version from package.json
+const requiredNodeVersions = require("../package.json").engines.node;
+const bannedNodeVersions = " < 18 || 20.0.* || 20.1.* || 20.2.* || 20.3.* ";
+console.log(`Your Node.js version: ${nodeVersion}`);
+
+const semver = require("semver");
+const requiredNodeVersionsComma = requiredNodeVersions.split("||").map((version) => version.trim()).join(", ");
+
+// Exit Uptime Kuma immediately if the Node.js version is banned
+if (semver.satisfies(nodeVersion, bannedNodeVersions)) {
+    console.error("\x1b[31m%s\x1b[0m", `Error: Your Node.js version: ${nodeVersion} is not supported, please upgrade your Node.js to ${requiredNodeVersionsComma}.`);
+    process.exit(-1);
+}
+
+// Warning if the Node.js version is not in the support list, but it maybe still works
+if (!semver.satisfies(nodeVersion, requiredNodeVersions)) {
+    console.warn("\x1b[31m%s\x1b[0m", `Warning: Your Node.js version: ${nodeVersion} is not officially supported, please upgrade your Node.js to ${requiredNodeVersionsComma}.`);
+}
+
+const args = require("args-parser")(process.argv);
+const { sleep, log, getRandomInt, genSecret, isDev } = require("../src/util");
+const config = require("./config");
+
+log.debug("server", "Arguments");
+log.debug("server", args);
+
+if (! process.env.NODE_ENV) {
+    process.env.NODE_ENV = "production";
+}
+
+if (!process.env.UPTIME_KUMA_WS_ORIGIN_CHECK) {
+    process.env.UPTIME_KUMA_WS_ORIGIN_CHECK = "cors-like";
+}
+
+log.info("server", "Env: " + process.env.NODE_ENV);
+log.debug("server", "Inside Container: " + (process.env.UPTIME_KUMA_IS_CONTAINER === "1"));
+
+if (process.env.UPTIME_KUMA_WS_ORIGIN_CHECK === "bypass") {
+    log.warn("server", "WebSocket Origin Check: " + process.env.UPTIME_KUMA_WS_ORIGIN_CHECK);
+}
+
+const checkVersion = require("./check-version");
+log.info("server", "Uptime Kuma Version: " + checkVersion.version);
+
+log.info("server", "Loading modules");
+
+log.debug("server", "Importing express");
+const express = require("express");
+const expressStaticGzip = require("express-static-gzip");
+log.debug("server", "Importing redbean-node");
+const { R } = require("redbean-node");
+log.debug("server", "Importing jsonwebtoken");
+const jwt = require("jsonwebtoken");
+log.debug("server", "Importing http-graceful-shutdown");
+const gracefulShutdown = require("http-graceful-shutdown");
+log.debug("server", "Importing prometheus-api-metrics");
+const prometheusAPIMetrics = require("prometheus-api-metrics");
+const { passwordStrength } = require("check-password-strength");
+
+log.debug("server", "Importing 2FA Modules");
+const notp = require("notp");
+const base32 = require("thirty-two");
+
+const { UptimeKumaServer } = require("./uptime-kuma-server");
+const server = UptimeKumaServer.getInstance();
+const io = module.exports.io = server.io;
+const app = server.app;
+
+log.debug("server", "Importing Monitor");
+const Monitor = require("./model/monitor");
+const User = require("./model/user");
+
+log.debug("server", "Importing Settings");
+const { getSettings, setSettings, setting, initJWTSecret, checkLogin, doubleCheckPassword, shake256, SHAKE256_LENGTH, allowDevAllOrigin,
+} = require("./util-server");
+
+log.debug("server", "Importing Notification");
+const { Notification } = require("./notification");
+Notification.init();
+
+log.debug("server", "Importing Database");
+const Database = require("./database");
+
+log.debug("server", "Importing Background Jobs");
+const { initBackgroundJobs, stopBackgroundJobs } = require("./jobs");
+const { loginRateLimiter, twoFaRateLimiter } = require("./rate-limiter");
+
+const { apiAuth } = require("./auth");
+const { login } = require("./auth");
+const passwordHash = require("./password-hash");
+
+const hostname = config.hostname;
+
+if (hostname) {
+    log.info("server", "Custom hostname: " + hostname);
+}
+
+const port = config.port;
+
+const disableFrameSameOrigin = !!process.env.UPTIME_KUMA_DISABLE_FRAME_SAMEORIGIN || args["disable-frame-sameorigin"] || false;
+const cloudflaredToken = args["cloudflared-token"] || process.env.UPTIME_KUMA_CLOUDFLARED_TOKEN || undefined;
+
+// 2FA / notp verification defaults
+const twoFAVerifyOptions = {
+    "window": 1,
+    "time": 30
+};
+
+/**
+ * Run unit test after the server is ready
+ * @type {boolean}
+ */
+const testMode = !!args["test"] || false;
+
+// Must be after io instantiation
+const { sendNotificationList, sendHeartbeatList, sendInfo, sendProxyList, sendDockerHostList, sendAPIKeyList, sendRemoteBrowserList, sendMonitorTypeList } = require("./client");
+const { statusPageSocketHandler } = require("./socket-handlers/status-page-socket-handler");
+const { databaseSocketHandler } = require("./socket-handlers/database-socket-handler");
+const { remoteBrowserSocketHandler } = require("./socket-handlers/remote-browser-socket-handler");
+const TwoFA = require("./2fa");
+const StatusPage = require("./model/status_page");
+const { cloudflaredSocketHandler, autoStart: cloudflaredAutoStart, stop: cloudflaredStop } = require("./socket-handlers/cloudflared-socket-handler");
+const { proxySocketHandler } = require("./socket-handlers/proxy-socket-handler");
+const { dockerSocketHandler } = require("./socket-handlers/docker-socket-handler");
+const { maintenanceSocketHandler } = require("./socket-handlers/maintenance-socket-handler");
+const { apiKeySocketHandler } = require("./socket-handlers/api-key-socket-handler");
+const { generalSocketHandler } = require("./socket-handlers/general-socket-handler");
+const { Settings } = require("./settings");
+const apicache = require("./modules/apicache");
+const { resetChrome } = require("./monitor-types/real-browser-monitor-type");
+const { EmbeddedMariaDB } = require("./embedded-mariadb");
+const { SetupDatabase } = require("./setup-database");
+const { chartSocketHandler } = require("./socket-handlers/chart-socket-handler");
+
+app.use(express.json());
+
+// Global Middleware
+app.use(function (req, res, next) {
+    if (!disableFrameSameOrigin) {
+        res.setHeader("X-Frame-Options", "SAMEORIGIN");
+    }
+    res.removeHeader("X-Powered-By");
+    next();
+});
+
+/**
+ * Show Setup Page
+ * @type {boolean}
+ */
+let needSetup = false;
+
+(async () => {
+    // Create a data directory
+    Database.initDataDir(args);
+
+    // Check if is chosen a database type
+    let setupDatabase = new SetupDatabase(args, server);
+    if (setupDatabase.isNeedSetup()) {
+        // Hold here and start a special setup page until user choose a database type
+        await setupDatabase.start(hostname, port);
+    }
+
+    // Connect to database
+    try {
+        await initDatabase(testMode);
+    } catch (e) {
+        log.error("server", "Failed to prepare your database: " + e.message);
+        process.exit(1);
+    }
+
+    // Database should be ready now
+    await server.initAfterDatabaseReady();
+    server.entryPage = await Settings.get("entryPage");
+    await StatusPage.loadDomainMappingList();
+
+    log.debug("server", "Adding route");
+
+    // ***************************
+    // Normal Router here
+    // ***************************
+
+    // Entry Page
+    app.get("/", async (request, response) => {
+        let hostname = request.hostname;
+        if (await setting("trustProxy")) {
+            const proxy = request.headers["x-forwarded-host"];
+            if (proxy) {
+                hostname = proxy;
+            }
+        }
+
+        log.debug("entry", `Request Domain: ${hostname}`);
+
+        const uptimeKumaEntryPage = server.entryPage;
+        if (hostname in StatusPage.domainMappingList) {
+            log.debug("entry", "This is a status page domain");
+
+            let slug = StatusPage.domainMappingList[hostname];
+            await StatusPage.handleStatusPageResponse(response, server.indexHTML, slug);
+
+        } else if (uptimeKumaEntryPage && uptimeKumaEntryPage.startsWith("statusPage-")) {
+            response.redirect("/status/" + uptimeKumaEntryPage.replace("statusPage-", ""));
+
+        } else {
+            response.redirect("/dashboard");
+        }
+    });
+
+    app.get("/setup-database-info", (request, response) => {
+        allowDevAllOrigin(response);
+        response.json({
+            runningSetup: false,
+            needSetup: false,
+        });
+    });
+
+    if (isDev) {
+        app.use(express.urlencoded({ extended: true }));
+        app.post("/test-webhook", async (request, response) => {
+            log.debug("test", request.headers);
+            log.debug("test", request.body);
+            response.send("OK");
+        });
+
+        app.post("/test-x-www-form-urlencoded", async (request, response) => {
+            log.debug("test", request.headers);
+            log.debug("test", request.body);
+            response.send("OK");
+        });
+
+        const fs = require("fs");
+
+        app.get("/_e2e/take-sqlite-snapshot", async (request, response) => {
+            await Database.close();
+            try {
+                fs.cpSync(Database.sqlitePath, `${Database.sqlitePath}.e2e-snapshot`);
+            } catch (err) {
+                throw new Error("Unable to copy SQLite DB.");
+            }
+            await Database.connect();
+
+            response.send("Snapshot taken.");
+        });
+
+        app.get("/_e2e/restore-sqlite-snapshot", async (request, response) => {
+            if (!fs.existsSync(`${Database.sqlitePath}.e2e-snapshot`)) {
+                throw new Error("Snapshot doesn't exist.");
+            }
+
+            await Database.close();
+            try {
+                fs.cpSync(`${Database.sqlitePath}.e2e-snapshot`, Database.sqlitePath);
+            } catch (err) {
+                throw new Error("Unable to copy snapshot file.");
+            }
+            await Database.connect();
+
+            response.send("Snapshot restored.");
+        });
+    }
+
+    // Robots.txt
+    app.get("/robots.txt", async (_request, response) => {
+        let txt = "User-agent: *\nDisallow:";
+        if (!await setting("searchEngineIndex")) {
+            txt += " /";
+        }
+        response.setHeader("Content-Type", "text/plain");
+        response.send(txt);
+    });
+
+    // Basic Auth Router here
+
+    // Prometheus API metrics  /metrics
+    // With Basic Auth using the first user's username/password
+    app.get("/metrics", apiAuth, prometheusAPIMetrics());
+
+    app.use("/", expressStaticGzip("dist", {
+        enableBrotli: true,
+    }));
+
+    // ./data/upload
+    app.use("/upload", express.static(Database.uploadDir));
+
+    app.get("/.well-known/change-password", async (_, response) => {
+        response.redirect("https://github.com/louislam/uptime-kuma/wiki/Reset-Password-via-CLI");
+    });
+
+    // API Router
+    const apiRouter = require("./routers/api-router");
+    app.use(apiRouter);
+
+    // Status Page Router
+    const statusPageRouter = require("./routers/status-page-router");
+    app.use(statusPageRouter);
+
+    // Universal Route Handler, must be at the end of all express routes.
+    app.get("*", async (_request, response) => {
+        if (_request.originalUrl.startsWith("/upload/")) {
+            response.status(404).send("File not found.");
+        } else {
+            response.send(server.indexHTML);
+        }
+    });
+
+    log.debug("server", "Adding socket handler");
+    io.on("connection", async (socket) => {
+
+        await sendInfo(socket, true);
+
+        if (needSetup) {
+            log.info("server", "Redirect to setup page");
+            socket.emit("setup");
+        }
+
+        // ***************************
+        // Public Socket API
+        // ***************************
+
+        socket.on("loginByToken", async (token, callback) => {
+            const clientIP = await server.getClientIP(socket);
+
+            log.info("auth", `Login by token. IP=${clientIP}`);
+
+            try {
+                let decoded = jwt.verify(token, server.jwtSecret);
+
+                log.info("auth", "Username from JWT: " + decoded.username);
+
+                let user = await R.findOne("user", " username = ? AND active = 1 ", [
+                    decoded.username,
+                ]);
+
+                if (user) {
+                    // Check if the password changed
+                    if (decoded.h !== shake256(user.password, SHAKE256_LENGTH)) {
+                        throw new Error("The token is invalid due to password change or old token");
+                    }
+
+                    log.debug("auth", "afterLogin");
+                    await afterLogin(socket, user);
+                    log.debug("auth", "afterLogin ok");
+
+                    log.info("auth", `Successfully logged in user ${decoded.username}. IP=${clientIP}`);
+
+                    callback({
+                        ok: true,
+                    });
+                } else {
+
+                    log.info("auth", `Inactive or deleted user ${decoded.username}. IP=${clientIP}`);
+
+                    callback({
+                        ok: false,
+                        msg: "authUserInactiveOrDeleted",
+                        msgi18n: true,
+                    });
+                }
+            } catch (error) {
+                log.error("auth", `Invalid token. IP=${clientIP}`);
+                if (error.message) {
+                    log.error("auth", error.message, `IP=${clientIP}`);
+                }
+                callback({
+                    ok: false,
+                    msg: "authInvalidToken",
+                    msgi18n: true,
+                });
+            }
+
+        });
+
+        socket.on("login", async (data, callback) => {
+            const clientIP = await server.getClientIP(socket);
+
+            log.info("auth", `Login by username + password. IP=${clientIP}`);
+
+            // Checking
+            if (typeof callback !== "function") {
+                return;
+            }
+
+            if (!data) {
+                return;
+            }
+
+            // Login Rate Limit
+            if (!await loginRateLimiter.pass(callback)) {
+                log.info("auth", `Too many failed requests for user ${data.username}. IP=${clientIP}`);
+                return;
+            }
+
+            let user = await login(data.username, data.password);
+
+            if (user) {
+                if (user.twofa_status === 0) {
+                    await afterLogin(socket, user);
+
+                    log.info("auth", `Successfully logged in user ${data.username}. IP=${clientIP}`);
+
+                    callback({
+                        ok: true,
+                        token: User.createJWT(user, server.jwtSecret),
+                    });
+                }
+
+                if (user.twofa_status === 1 && !data.token) {
+
+                    log.info("auth", `2FA token required for user ${data.username}. IP=${clientIP}`);
+
+                    callback({
+                        tokenRequired: true,
+                    });
+                }
+
+                if (data.token) {
+                    let verify = notp.totp.verify(data.token, user.twofa_secret, twoFAVerifyOptions);
+
+                    if (user.twofa_last_token !== data.token && verify) {
+                        await afterLogin(socket, user);
+
+                        await R.exec("UPDATE `user` SET twofa_last_token = ? WHERE id = ? ", [
+                            data.token,
+                            socket.userID,
+                        ]);
+
+                        log.info("auth", `Successfully logged in user ${data.username}. IP=${clientIP}`);
+
+                        callback({
+                            ok: true,
+                            token: User.createJWT(user, server.jwtSecret),
+                        });
+                    } else {
+
+                        log.warn("auth", `Invalid token provided for user ${data.username}. IP=${clientIP}`);
+
+                        callback({
+                            ok: false,
+                            msg: "authInvalidToken",
+                            msgi18n: true,
+                        });
+                    }
+                }
+            } else {
+
+                log.warn("auth", `Incorrect username or password for user ${data.username}. IP=${clientIP}`);
+
+                callback({
+                    ok: false,
+                    msg: "authIncorrectCreds",
+                    msgi18n: true,
+                });
+            }
+
+        });
+
+        socket.on("logout", async (callback) => {
+            // Rate Limit
+            if (!await loginRateLimiter.pass(callback)) {
+                return;
+            }
+
+            socket.leave(socket.userID);
+            socket.userID = null;
+
+            if (typeof callback === "function") {
+                callback();
+            }
+        });
+
+        socket.on("prepare2FA", async (currentPassword, callback) => {
+            try {
+                if (!await twoFaRateLimiter.pass(callback)) {
+                    return;
+                }
+
+                checkLogin(socket);
+                await doubleCheckPassword(socket, currentPassword);
+
+                let user = await R.findOne("user", " id = ? AND active = 1 ", [
+                    socket.userID,
+                ]);
+
+                if (user.twofa_status === 0) {
+                    let newSecret = genSecret();
+                    let encodedSecret = base32.encode(newSecret);
+
+                    // Google authenticator doesn't like equal signs
+                    // The fix is found at https://github.com/guyht/notp
+                    // Related issue: https://github.com/louislam/uptime-kuma/issues/486
+                    encodedSecret = encodedSecret.toString().replace(/=/g, "");
+
+                    let uri = `otpauth://totp/Uptime%20Kuma:${user.username}?secret=${encodedSecret}`;
+
+                    await R.exec("UPDATE `user` SET twofa_secret = ? WHERE id = ? ", [
+                        newSecret,
+                        socket.userID,
+                    ]);
+
+                    callback({
+                        ok: true,
+                        uri: uri,
+                    });
+                } else {
+                    callback({
+                        ok: false,
+                        msg: "2faAlreadyEnabled",
+                        msgi18n: true,
+                    });
+                }
+            } catch (error) {
+                callback({
+                    ok: false,
+                    msg: error.message,
+                });
+            }
+        });
+
+        socket.on("save2FA", async (currentPassword, callback) => {
+            const clientIP = await server.getClientIP(socket);
+
+            try {
+                if (!await twoFaRateLimiter.pass(callback)) {
+                    return;
+                }
+
+                checkLogin(socket);
+                await doubleCheckPassword(socket, currentPassword);
+
+                await R.exec("UPDATE `user` SET twofa_status = 1 WHERE id = ? ", [
+                    socket.userID,
+                ]);
+
+                log.info("auth", `Saved 2FA token. IP=${clientIP}`);
+
+                callback({
+                    ok: true,
+                    msg: "2faEnabled",
+                    msgi18n: true,
+                });
+            } catch (error) {
+
+                log.error("auth", `Error changing 2FA token. IP=${clientIP}`);
+
+                callback({
+                    ok: false,
+                    msg: error.message,
+                });
+            }
+        });
+
+        socket.on("disable2FA", async (currentPassword, callback) => {
+            const clientIP = await server.getClientIP(socket);
+
+            try {
+                if (!await twoFaRateLimiter.pass(callback)) {
+                    return;
+                }
+
+                checkLogin(socket);
+                await doubleCheckPassword(socket, currentPassword);
+                await TwoFA.disable2FA(socket.userID);
+
+                log.info("auth", `Disabled 2FA token. IP=${clientIP}`);
+
+                callback({
+                    ok: true,
+                    msg: "2faDisabled",
+                    msgi18n: true,
+                });
+            } catch (error) {
+
+                log.error("auth", `Error disabling 2FA token. IP=${clientIP}`);
+
+                callback({
+                    ok: false,
+                    msg: error.message,
+                });
+            }
+        });
+
+        socket.on("verifyToken", async (token, currentPassword, callback) => {
+            try {
+                checkLogin(socket);
+                await doubleCheckPassword(socket, currentPassword);
+
+                let user = await R.findOne("user", " id = ? AND active = 1 ", [
+                    socket.userID,
+                ]);
+
+                let verify = notp.totp.verify(token, user.twofa_secret, twoFAVerifyOptions);
+
+                if (user.twofa_last_token !== token && verify) {
+                    callback({
+                        ok: true,
+                        valid: true,
+                    });
+                } else {
+                    callback({
+                        ok: false,
+                        msg: "authInvalidToken",
+                        msgi18n: true,
+                        valid: false,
+                    });
+                }
+
+            } catch (error) {
+                callback({
+                    ok: false,
+                    msg: error.message,
+                });
+            }
+        });
+
+        socket.on("twoFAStatus", async (callback) => {
+            try {
+                checkLogin(socket);
+
+                let user = await R.findOne("user", " id = ? AND active = 1 ", [
+                    socket.userID,
+                ]);
+
+                if (user.twofa_status === 1) {
+                    callback({
+                        ok: true,
+                        status: true,
+                    });
+                } else {
+                    callback({
+                        ok: true,
+                        status: false,
+                    });
+                }
+            } catch (error) {
+                callback({
+                    ok: false,
+                    msg: error.message,
+                });
+            }
+        });
+
+        socket.on("needSetup", async (callback) => {
+            callback(needSetup);
+        });
+
+        socket.on("setup", async (username, password, callback) => {
+            try {
+                if (passwordStrength(password).value === "Too weak") {
+                    throw new Error("Password is too weak. It should contain alphabetic and numeric characters. It must be at least 6 characters in length.");
+                }
+
+                if ((await R.knex("user").count("id as count").first()).count !== 0) {
+                    throw new Error("Uptime Kuma has been initialized. If you want to run setup again, please delete the database.");
+                }
+
+                let user = R.dispense("user");
+                user.username = username;
+                user.password = passwordHash.generate(password);
+                await R.store(user);
+
+                needSetup = false;
+
+                callback({
+                    ok: true,
+                    msg: "successAdded",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        // ***************************
+        // Auth Only API
+        // ***************************
+
+        // Add a new monitor
+        socket.on("add", async (monitor, callback) => {
+            try {
+                checkLogin(socket);
+                let bean = R.dispense("monitor");
+
+                let notificationIDList = monitor.notificationIDList;
+                delete monitor.notificationIDList;
+
+                // Ensure status code ranges are strings
+                if (!monitor.accepted_statuscodes.every((code) => typeof code === "string")) {
+                    throw new Error("Accepted status codes are not all strings");
+                }
+                monitor.accepted_statuscodes_json = JSON.stringify(monitor.accepted_statuscodes);
+                delete monitor.accepted_statuscodes;
+
+                monitor.kafkaProducerBrokers = JSON.stringify(monitor.kafkaProducerBrokers);
+                monitor.kafkaProducerSaslOptions = JSON.stringify(monitor.kafkaProducerSaslOptions);
+
+                monitor.conditions = JSON.stringify(monitor.conditions);
+
+                monitor.rabbitmqNodes = JSON.stringify(monitor.rabbitmqNodes);
+
+                bean.import(monitor);
+                bean.user_id = socket.userID;
+
+                bean.validate();
+
+                await R.store(bean);
+
+                await updateMonitorNotification(bean.id, notificationIDList);
+
+                await server.sendUpdateMonitorIntoList(socket, bean.id);
+
+                if (monitor.active !== false) {
+                    await startMonitor(socket.userID, bean.id);
+                }
+
+                log.info("monitor", `Added Monitor: ${bean.id} User ID: ${socket.userID}`);
+
+                callback({
+                    ok: true,
+                    msg: "successAdded",
+                    msgi18n: true,
+                    monitorID: bean.id,
+                });
+
+            } catch (e) {
+
+                log.error("monitor", `Error adding Monitor: ${monitor.id} User ID: ${socket.userID}`);
+
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        // Edit a monitor
+        socket.on("editMonitor", async (monitor, callback) => {
+            try {
+                let removeGroupChildren = false;
+                checkLogin(socket);
+
+                let bean = await R.findOne("monitor", " id = ? ", [ monitor.id ]);
+
+                if (bean.user_id !== socket.userID) {
+                    throw new Error("Permission denied.");
+                }
+
+                // Check if Parent is Descendant (would cause endless loop)
+                if (monitor.parent !== null) {
+                    const childIDs = await Monitor.getAllChildrenIDs(monitor.id);
+                    if (childIDs.includes(monitor.parent)) {
+                        throw new Error("Invalid Monitor Group");
+                    }
+                }
+
+                // Remove children if monitor type has changed (from group to non-group)
+                if (bean.type === "group" && monitor.type !== bean.type) {
+                    removeGroupChildren = true;
+                }
+
+                // Ensure status code ranges are strings
+                if (!monitor.accepted_statuscodes.every((code) => typeof code === "string")) {
+                    throw new Error("Accepted status codes are not all strings");
+                }
+
+                bean.name = monitor.name;
+                bean.description = monitor.description;
+                bean.parent = monitor.parent;
+                bean.type = monitor.type;
+                bean.url = monitor.url;
+                bean.method = monitor.method;
+                bean.body = monitor.body;
+                bean.headers = monitor.headers;
+                bean.basic_auth_user = monitor.basic_auth_user;
+                bean.basic_auth_pass = monitor.basic_auth_pass;
+                bean.timeout = monitor.timeout;
+                bean.oauth_client_id = monitor.oauth_client_id;
+                bean.oauth_client_secret = monitor.oauth_client_secret;
+                bean.oauth_auth_method = monitor.oauth_auth_method;
+                bean.oauth_token_url = monitor.oauth_token_url;
+                bean.oauth_scopes = monitor.oauth_scopes;
+                bean.tlsCa = monitor.tlsCa;
+                bean.tlsCert = monitor.tlsCert;
+                bean.tlsKey = monitor.tlsKey;
+                bean.interval = monitor.interval;
+                bean.retryInterval = monitor.retryInterval;
+                bean.resendInterval = monitor.resendInterval;
+                bean.hostname = monitor.hostname;
+                bean.game = monitor.game;
+                bean.maxretries = monitor.maxretries;
+                bean.port = parseInt(monitor.port);
+
+                if (isNaN(bean.port)) {
+                    bean.port = null;
+                }
+
+                bean.keyword = monitor.keyword;
+                bean.invertKeyword = monitor.invertKeyword;
+                bean.ignoreTls = monitor.ignoreTls;
+                bean.expiryNotification = monitor.expiryNotification;
+                bean.upsideDown = monitor.upsideDown;
+                bean.packetSize = monitor.packetSize;
+                bean.maxredirects = monitor.maxredirects;
+                bean.accepted_statuscodes_json = JSON.stringify(monitor.accepted_statuscodes);
+                bean.dns_resolve_type = monitor.dns_resolve_type;
+                bean.dns_resolve_server = monitor.dns_resolve_server;
+                bean.pushToken = monitor.pushToken;
+                bean.docker_container = monitor.docker_container;
+                bean.docker_host = monitor.docker_host;
+                bean.proxyId = Number.isInteger(monitor.proxyId) ? monitor.proxyId : null;
+                bean.mqttUsername = monitor.mqttUsername;
+                bean.mqttPassword = monitor.mqttPassword;
+                bean.mqttTopic = monitor.mqttTopic;
+                bean.mqttSuccessMessage = monitor.mqttSuccessMessage;
+                bean.mqttCheckType = monitor.mqttCheckType;
+                bean.databaseConnectionString = monitor.databaseConnectionString;
+                bean.databaseQuery = monitor.databaseQuery;
+                bean.authMethod = monitor.authMethod;
+                bean.authWorkstation = monitor.authWorkstation;
+                bean.authDomain = monitor.authDomain;
+                bean.grpcUrl = monitor.grpcUrl;
+                bean.grpcProtobuf = monitor.grpcProtobuf;
+                bean.grpcServiceName = monitor.grpcServiceName;
+                bean.grpcMethod = monitor.grpcMethod;
+                bean.grpcBody = monitor.grpcBody;
+                bean.grpcMetadata = monitor.grpcMetadata;
+                bean.grpcEnableTls = monitor.grpcEnableTls;
+                bean.radiusUsername = monitor.radiusUsername;
+                bean.radiusPassword = monitor.radiusPassword;
+                bean.radiusCalledStationId = monitor.radiusCalledStationId;
+                bean.radiusCallingStationId = monitor.radiusCallingStationId;
+                bean.radiusSecret = monitor.radiusSecret;
+                bean.httpBodyEncoding = monitor.httpBodyEncoding;
+                bean.expectedValue = monitor.expectedValue;
+                bean.jsonPath = monitor.jsonPath;
+                bean.kafkaProducerTopic = monitor.kafkaProducerTopic;
+                bean.kafkaProducerBrokers = JSON.stringify(monitor.kafkaProducerBrokers);
+                bean.kafkaProducerAllowAutoTopicCreation = monitor.kafkaProducerAllowAutoTopicCreation;
+                bean.kafkaProducerSaslOptions = JSON.stringify(monitor.kafkaProducerSaslOptions);
+                bean.kafkaProducerMessage = monitor.kafkaProducerMessage;
+                bean.cacheBust = monitor.cacheBust;
+                bean.kafkaProducerSsl = monitor.kafkaProducerSsl;
+                bean.kafkaProducerAllowAutoTopicCreation =
+                    monitor.kafkaProducerAllowAutoTopicCreation;
+                bean.gamedigGivenPortOnly = monitor.gamedigGivenPortOnly;
+                bean.remote_browser = monitor.remote_browser;
+                bean.snmpVersion = monitor.snmpVersion;
+                bean.snmpOid = monitor.snmpOid;
+                bean.jsonPathOperator = monitor.jsonPathOperator;
+                bean.timeout = monitor.timeout;
+                bean.rabbitmqNodes = JSON.stringify(monitor.rabbitmqNodes);
+                bean.rabbitmqUsername = monitor.rabbitmqUsername;
+                bean.rabbitmqPassword = monitor.rabbitmqPassword;
+                bean.conditions = JSON.stringify(monitor.conditions);
+
+                bean.validate();
+
+                await R.store(bean);
+
+                if (removeGroupChildren) {
+                    await Monitor.unlinkAllChildren(monitor.id);
+                }
+
+                await updateMonitorNotification(bean.id, monitor.notificationIDList);
+
+                if (await Monitor.isActive(bean.id, bean.active)) {
+                    await restartMonitor(socket.userID, bean.id);
+                }
+
+                await server.sendUpdateMonitorIntoList(socket, bean.id);
+
+                callback({
+                    ok: true,
+                    msg: "Saved.",
+                    msgi18n: true,
+                    monitorID: bean.id,
+                });
+
+            } catch (e) {
+                log.error("monitor", e);
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("getMonitorList", async (callback) => {
+            try {
+                checkLogin(socket);
+                await server.sendMonitorList(socket);
+                callback({
+                    ok: true,
+                });
+            } catch (e) {
+                log.error("monitor", e);
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("getMonitor", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+
+                log.info("monitor", `Get Monitor: ${monitorID} User ID: ${socket.userID}`);
+
+                let monitor = await R.findOne("monitor", " id = ? AND user_id = ? ", [
+                    monitorID,
+                    socket.userID,
+                ]);
+                const monitorData = [{ id: monitor.id,
+                    active: monitor.active
+                }];
+                const preloadData = await Monitor.preparePreloadData(monitorData);
+                callback({
+                    ok: true,
+                    monitor: monitor.toJSON(preloadData),
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("getMonitorBeats", async (monitorID, period, callback) => {
+            try {
+                checkLogin(socket);
+
+                log.info("monitor", `Get Monitor Beats: ${monitorID} User ID: ${socket.userID}`);
+
+                if (period == null) {
+                    throw new Error("Invalid period.");
+                }
+
+                const sqlHourOffset = Database.sqlHourOffset();
+
+                let list = await R.getAll(`
+                    SELECT *
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                      AND time > ${sqlHourOffset}
+                    ORDER BY time ASC
+                `, [
+                    monitorID,
+                    -period,
+                ]);
+
+                callback({
+                    ok: true,
+                    data: list,
+                });
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        // Start or Resume the monitor
+        socket.on("resumeMonitor", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+                await startMonitor(socket.userID, monitorID);
+                await server.sendUpdateMonitorIntoList(socket, monitorID);
+
+                callback({
+                    ok: true,
+                    msg: "successResumed",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("pauseMonitor", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+                await pauseMonitor(socket.userID, monitorID);
+                await server.sendUpdateMonitorIntoList(socket, monitorID);
+
+                callback({
+                    ok: true,
+                    msg: "successPaused",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("deleteMonitor", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+
+                log.info("manage", `Delete Monitor: ${monitorID} User ID: ${socket.userID}`);
+
+                if (monitorID in server.monitorList) {
+                    await server.monitorList[monitorID].stop();
+                    delete server.monitorList[monitorID];
+                }
+
+                const startTime = Date.now();
+
+                await R.exec("DELETE FROM monitor WHERE id = ? AND user_id = ? ", [
+                    monitorID,
+                    socket.userID,
+                ]);
+
+                // Fix #2880
+                apicache.clear();
+
+                const endTime = Date.now();
+
+                log.info("DB", `Delete Monitor completed in : ${endTime - startTime} ms`);
+
+                callback({
+                    ok: true,
+                    msg: "successDeleted",
+                    msgi18n: true,
+                });
+                await server.sendDeleteMonitorFromList(socket, monitorID);
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("getTags", async (callback) => {
+            try {
+                checkLogin(socket);
+
+                const list = await R.findAll("tag");
+
+                callback({
+                    ok: true,
+                    tags: list.map(bean => bean.toJSON()),
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("addTag", async (tag, callback) => {
+            try {
+                checkLogin(socket);
+
+                let bean = R.dispense("tag");
+                bean.name = tag.name;
+                bean.color = tag.color;
+                await R.store(bean);
+
+                callback({
+                    ok: true,
+                    tag: await bean.toJSON(),
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("editTag", async (tag, callback) => {
+            try {
+                checkLogin(socket);
+
+                let bean = await R.findOne("tag", " id = ? ", [ tag.id ]);
+                if (bean == null) {
+                    callback({
+                        ok: false,
+                        msg: "tagNotFound",
+                        msgi18n: true,
+                    });
+                    return;
+                }
+                bean.name = tag.name;
+                bean.color = tag.color;
+                await R.store(bean);
+
+                callback({
+                    ok: true,
+                    msg: "Saved.",
+                    msgi18n: true,
+                    tag: await bean.toJSON(),
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("deleteTag", async (tagID, callback) => {
+            try {
+                checkLogin(socket);
+
+                await R.exec("DELETE FROM tag WHERE id = ? ", [ tagID ]);
+
+                callback({
+                    ok: true,
+                    msg: "successDeleted",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("addMonitorTag", async (tagID, monitorID, value, callback) => {
+            try {
+                checkLogin(socket);
+
+                await R.exec("INSERT INTO monitor_tag (tag_id, monitor_id, value) VALUES (?, ?, ?)", [
+                    tagID,
+                    monitorID,
+                    value,
+                ]);
+
+                callback({
+                    ok: true,
+                    msg: "successAdded",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("editMonitorTag", async (tagID, monitorID, value, callback) => {
+            try {
+                checkLogin(socket);
+
+                await R.exec("UPDATE monitor_tag SET value = ? WHERE tag_id = ? AND monitor_id = ?", [
+                    value,
+                    tagID,
+                    monitorID,
+                ]);
+
+                callback({
+                    ok: true,
+                    msg: "successEdited",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("deleteMonitorTag", async (tagID, monitorID, value, callback) => {
+            try {
+                checkLogin(socket);
+
+                await R.exec("DELETE FROM monitor_tag WHERE tag_id = ? AND monitor_id = ? AND value = ?", [
+                    tagID,
+                    monitorID,
+                    value,
+                ]);
+
+                callback({
+                    ok: true,
+                    msg: "successDeleted",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("monitorImportantHeartbeatListCount", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+
+                let count;
+                if (monitorID == null) {
+                    count = await R.count("heartbeat", "important = 1");
+                } else {
+                    count = await R.count("heartbeat", "monitor_id = ? AND important = 1", [
+                        monitorID,
+                    ]);
+                }
+
+                callback({
+                    ok: true,
+                    count: count,
+                });
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("monitorImportantHeartbeatListPaged", async (monitorID, offset, count, callback) => {
+            try {
+                checkLogin(socket);
+
+                let list;
+                if (monitorID == null) {
+                    list = await R.find("heartbeat", `
+                        important = 1
+                        ORDER BY time DESC
+                        LIMIT ?
+                        OFFSET ?
+                    `, [
+                        count,
+                        offset,
+                    ]);
+                } else {
+                    list = await R.find("heartbeat", `
+                        monitor_id = ?
+                        AND important = 1
+                        ORDER BY time DESC
+                        LIMIT ?
+                        OFFSET ?
+                    `, [
+                        monitorID,
+                        count,
+                        offset,
+                    ]);
+                }
+
+                callback({
+                    ok: true,
+                    data: list,
+                });
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("changePassword", async (password, callback) => {
+            try {
+                checkLogin(socket);
+
+                if (!password.newPassword) {
+                    throw new Error("Invalid new password");
+                }
+
+                if (passwordStrength(password.newPassword).value === "Too weak") {
+                    throw new Error("Password is too weak. It should contain alphabetic and numeric characters. It must be at least 6 characters in length.");
+                }
+
+                let user = await doubleCheckPassword(socket, password.currentPassword);
+                await user.resetPassword(password.newPassword);
+
+                server.disconnectAllSocketClients(user.id, socket.id);
+
+                callback({
+                    ok: true,
+                    token: User.createJWT(user, server.jwtSecret),
+                    msg: "successAuthChangePassword",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("getSettings", async (callback) => {
+            try {
+                checkLogin(socket);
+                const data = await getSettings("general");
+
+                if (!data.serverTimezone) {
+                    data.serverTimezone = await server.getTimezone();
+                }
+
+                callback({
+                    ok: true,
+                    data: data,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("setSettings", async (data, currentPassword, callback) => {
+            try {
+                checkLogin(socket);
+
+                // If currently is disabled auth, don't need to check
+                // Disabled Auth + Want to Disable Auth => No Check
+                // Disabled Auth + Want to Enable Auth => No Check
+                // Enabled Auth + Want to Disable Auth => Check!!
+                // Enabled Auth + Want to Enable Auth => No Check
+                const currentDisabledAuth = await setting("disableAuth");
+                if (!currentDisabledAuth && data.disableAuth) {
+                    await doubleCheckPassword(socket, currentPassword);
+                }
+
+                // Log out all clients if enabling auth
+                // GHSA-23q2-5gf8-gjpp
+                if (currentDisabledAuth && !data.disableAuth) {
+                    server.disconnectAllSocketClients(socket.userID, socket.id);
+                }
+
+                const previousChromeExecutable = await Settings.get("chromeExecutable");
+                const previousNSCDStatus = await Settings.get("nscd");
+
+                await setSettings("general", data);
+                server.entryPage = data.entryPage;
+
+                // Also need to apply timezone globally
+                if (data.serverTimezone) {
+                    await server.setTimezone(data.serverTimezone);
+                }
+
+                // If Chrome Executable is changed, need to reset the browser
+                if (previousChromeExecutable !== data.chromeExecutable) {
+                    log.info("settings", "Chrome executable is changed. Resetting Chrome...");
+                    await resetChrome();
+                }
+
+                // Update nscd status
+                if (previousNSCDStatus !== data.nscd) {
+                    if (data.nscd) {
+                        await server.startNSCDServices();
+                    } else {
+                        await server.stopNSCDServices();
+                    }
+                }
+
+                callback({
+                    ok: true,
+                    msg: "Saved.",
+                    msgi18n: true,
+                });
+
+                await sendInfo(socket);
+                await server.sendMaintenanceList(socket);
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        // Add or Edit
+        socket.on("addNotification", async (notification, notificationID, callback) => {
+            try {
+                checkLogin(socket);
+
+                let notificationBean = await Notification.save(notification, notificationID, socket.userID);
+                await sendNotificationList(socket);
+
+                callback({
+                    ok: true,
+                    msg: "Saved.",
+                    msgi18n: true,
+                    id: notificationBean.id,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("deleteNotification", async (notificationID, callback) => {
+            try {
+                checkLogin(socket);
+
+                await Notification.delete(notificationID, socket.userID);
+                await sendNotificationList(socket);
+
+                callback({
+                    ok: true,
+                    msg: "successDeleted",
+                    msgi18n: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("testNotification", async (notification, callback) => {
+            try {
+                checkLogin(socket);
+
+                let msg = await Notification.send(notification, notification.name + " Testing");
+
+                callback({
+                    ok: true,
+                    msg,
+                });
+
+            } catch (e) {
+                console.error(e);
+
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("checkApprise", async (callback) => {
+            try {
+                checkLogin(socket);
+                callback(Notification.checkApprise());
+            } catch (e) {
+                callback(false);
+            }
+        });
+
+        socket.on("clearEvents", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+
+                log.info("manage", `Clear Events Monitor: ${monitorID} User ID: ${socket.userID}`);
+
+                await R.exec("UPDATE heartbeat SET msg = ?, important = ? WHERE monitor_id = ? ", [
+                    "",
+                    "0",
+                    monitorID,
+                ]);
+
+                callback({
+                    ok: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("clearHeartbeats", async (monitorID, callback) => {
+            try {
+                checkLogin(socket);
+
+                log.info("manage", `Clear Heartbeats Monitor: ${monitorID} User ID: ${socket.userID}`);
+
+                await R.exec("DELETE FROM heartbeat WHERE monitor_id = ?", [
+                    monitorID
+                ]);
+
+                await sendHeartbeatList(socket, monitorID, true, true);
+
+                callback({
+                    ok: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        socket.on("clearStatistics", async (callback) => {
+            try {
+                checkLogin(socket);
+
+                log.info("manage", `Clear Statistics User ID: ${socket.userID}`);
+
+                await R.exec("DELETE FROM heartbeat");
+                await R.exec("DELETE FROM stat_daily");
+                await R.exec("DELETE FROM stat_hourly");
+                await R.exec("DELETE FROM stat_minutely");
+
+                // Restart all monitors to reset the stats
+                for (let monitorID in server.monitorList) {
+                    await restartMonitor(socket.userID, monitorID);
+                }
+
+                callback({
+                    ok: true,
+                });
+
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
+        // Status Page Socket Handler for admin only
+        statusPageSocketHandler(socket);
+        cloudflaredSocketHandler(socket);
+        databaseSocketHandler(socket);
+        proxySocketHandler(socket);
+        dockerSocketHandler(socket);
+        maintenanceSocketHandler(socket);
+        apiKeySocketHandler(socket);
+        remoteBrowserSocketHandler(socket);
+        generalSocketHandler(socket, server);
+        chartSocketHandler(socket);
+
+        log.debug("server", "added all socket handlers");
+
+        // ***************************
+        // Better do anything after added all socket handlers here
+        // ***************************
+
+        log.debug("auth", "check auto login");
+        if (await setting("disableAuth")) {
+            log.info("auth", "Disabled Auth: auto login to admin");
+            await afterLogin(socket, await R.findOne("user"));
+            socket.emit("autoLogin");
+        } else {
+            socket.emit("loginRequired");
+            log.debug("auth", "need auth");
+        }
+
+    });
+
+    log.debug("server", "Init the server");
+
+    server.httpServer.once("error", async (err) => {
+        log.error("server", "Cannot listen: " + err.message);
+        await shutdownFunction();
+        process.exit(1);
+    });
+
+    await server.start();
+
+    server.httpServer.listen(port, hostname, async () => {
+        if (hostname) {
+            log.info("server", `Listening on ${hostname}:${port}`);
+        } else {
+            log.info("server", `Listening on ${port}`);
+        }
+        await startMonitors();
+
+        // Put this here. Start background jobs after the db and server is ready to prevent clear up during db migration.
+        await initBackgroundJobs();
+
+        checkVersion.startInterval();
+    });
+
+    // Start cloudflared at the end if configured
+    await cloudflaredAutoStart(cloudflaredToken);
+
+})();
+
+/**
+ * Update notifications for a given monitor
+ * @param {number} monitorID ID of monitor to update
+ * @param {number[]} notificationIDList List of new notification
+ * providers to add
+ * @returns {Promise<void>}
+ */
+async function updateMonitorNotification(monitorID, notificationIDList) {
+    await R.exec("DELETE FROM monitor_notification WHERE monitor_id = ? ", [
+        monitorID,
+    ]);
+
+    for (let notificationID in notificationIDList) {
+        if (notificationIDList[notificationID]) {
+            let relation = R.dispense("monitor_notification");
+            relation.monitor_id = monitorID;
+            relation.notification_id = notificationID;
+            await R.store(relation);
+        }
+    }
+}
+
+/**
+ * Check if a given user owns a specific monitor
+ * @param {number} userID ID of user to check
+ * @param {number} monitorID ID of monitor to check
+ * @returns {Promise<void>}
+ * @throws {Error} The specified user does not own the monitor
+ */
+async function checkOwner(userID, monitorID) {
+    let row = await R.getRow("SELECT id FROM monitor WHERE id = ? AND user_id = ? ", [
+        monitorID,
+        userID,
+    ]);
+
+    if (! row) {
+        throw new Error("You do not own this monitor.");
+    }
+}
+
+/**
+ * Function called after user login
+ * This function is used to send the heartbeat list of a monitor.
+ * @param {Socket} socket Socket.io instance
+ * @param {object} user User object
+ * @returns {Promise<void>}
+ */
+async function afterLogin(socket, user) {
+    socket.userID = user.id;
+    socket.join(user.id);
+
+    let monitorList = await server.sendMonitorList(socket);
+    await Promise.allSettled([
+        sendInfo(socket),
+        server.sendMaintenanceList(socket),
+        sendNotificationList(socket),
+        sendProxyList(socket),
+        sendDockerHostList(socket),
+        sendAPIKeyList(socket),
+        sendRemoteBrowserList(socket),
+        sendMonitorTypeList(socket),
+    ]);
+
+    await StatusPage.sendStatusPageList(io, socket);
+
+    const monitorPromises = [];
+    for (let monitorID in monitorList) {
+        monitorPromises.push(sendHeartbeatList(socket, monitorID));
+        monitorPromises.push(Monitor.sendStats(io, monitorID, user.id));
+    }
+
+    await Promise.all(monitorPromises);
+
+    // Set server timezone from client browser if not set
+    // It should be run once only
+    if (! await Settings.get("initServerTimezone")) {
+        log.debug("server", "emit initServerTimezone");
+        socket.emit("initServerTimezone");
+    }
+}
+
+/**
+ * Initialize the database
+ * @param {boolean} testMode Should the connection be
+ * started in test mode?
+ * @returns {Promise<void>}
+ */
+async function initDatabase(testMode = false) {
+    log.debug("server", "Connecting to the database");
+    await Database.connect(testMode);
+    log.info("server", "Connected to the database");
+
+    // Patch the database
+    await Database.patch(port, hostname);
+
+    let jwtSecretBean = await R.findOne("setting", " `key` = ? ", [
+        "jwtSecret",
+    ]);
+
+    if (! jwtSecretBean) {
+        log.info("server", "JWT secret is not found, generate one.");
+        jwtSecretBean = await initJWTSecret();
+        log.info("server", "Stored JWT secret into database");
+    } else {
+        log.debug("server", "Load JWT secret from database.");
+    }
+
+    // If there is no record in user table, it is a new Uptime Kuma instance, need to setup
+    if ((await R.knex("user").count("id as count").first()).count === 0) {
+        log.info("server", "No user, need setup");
+        needSetup = true;
+    }
+
+    server.jwtSecret = jwtSecretBean.value;
+}
+
+/**
+ * Start the specified monitor
+ * @param {number} userID ID of user who owns monitor
+ * @param {number} monitorID ID of monitor to start
+ * @returns {Promise<void>}
+ */
+async function startMonitor(userID, monitorID) {
+    await checkOwner(userID, monitorID);
+
+    log.info("manage", `Resume Monitor: ${monitorID} User ID: ${userID}`);
+
+    await R.exec("UPDATE monitor SET active = 1 WHERE id = ? AND user_id = ? ", [
+        monitorID,
+        userID,
+    ]);
+
+    let monitor = await R.findOne("monitor", " id = ? ", [
+        monitorID,
+    ]);
+
+    if (monitor.id in server.monitorList) {
+        await server.monitorList[monitor.id].stop();
+    }
+
+    server.monitorList[monitor.id] = monitor;
+    await monitor.start(io);
+}
+
+/**
+ * Restart a given monitor
+ * @param {number} userID ID of user who owns monitor
+ * @param {number} monitorID ID of monitor to start
+ * @returns {Promise<void>}
+ */
+async function restartMonitor(userID, monitorID) {
+    return await startMonitor(userID, monitorID);
+}
+
+/**
+ * Pause a given monitor
+ * @param {number} userID ID of user who owns monitor
+ * @param {number} monitorID ID of monitor to start
+ * @returns {Promise<void>}
+ */
+async function pauseMonitor(userID, monitorID) {
+    await checkOwner(userID, monitorID);
+
+    log.info("manage", `Pause Monitor: ${monitorID} User ID: ${userID}`);
+
+    await R.exec("UPDATE monitor SET active = 0 WHERE id = ? AND user_id = ? ", [
+        monitorID,
+        userID,
+    ]);
+
+    if (monitorID in server.monitorList) {
+        await server.monitorList[monitorID].stop();
+        server.monitorList[monitorID].active = 0;
+    }
+}
+
+/**
+ * Resume active monitors
+ * @returns {Promise<void>}
+ */
+async function startMonitors() {
+    let list = await R.find("monitor", " active = 1 ");
+
+    for (let monitor of list) {
+        server.monitorList[monitor.id] = monitor;
+    }
+
+    for (let monitor of list) {
+        try {
+            await monitor.start(io);
+        } catch (e) {
+            log.error("monitor", e);
+        }
+        // Give some delays, so all monitors won't make request at the same moment when just start the server.
+        await sleep(getRandomInt(300, 1000));
+    }
+}
+
+/**
+ * Shutdown the application
+ * Stops all monitors and closes the database connection.
+ * @param {string} signal The signal that triggered this function to be called.
+ * @returns {Promise<void>}
+ */
+async function shutdownFunction(signal) {
+    log.info("server", "Shutdown requested");
+    log.info("server", "Called signal: " + signal);
+
+    await server.stop();
+
+    log.info("server", "Stopping all monitors");
+    for (let id in server.monitorList) {
+        let monitor = server.monitorList[id];
+        await monitor.stop();
+    }
+    await sleep(2000);
+    await Database.close();
+
+    if (EmbeddedMariaDB.hasInstance()) {
+        EmbeddedMariaDB.getInstance().stop();
+    }
+
+    stopBackgroundJobs();
+    await cloudflaredStop();
+    Settings.stopCacheCleaner();
+}
+
+/**
+ * Final function called before application exits
+ * @returns {void}
+ */
+function finalFunction() {
+    log.info("server", "Graceful shutdown successful!");
+}
+
+gracefulShutdown(server.httpServer, {
+    signals: "SIGINT SIGTERM",
+    timeout: 30000,                   // timeout: 30 secs
+    development: false,               // not in dev mode
+    forceExit: true,                  // triggers process.exit() at the end of shutdown process
+    onShutdown: shutdownFunction,     // shutdown function (async) - e.g. for cleanup DB, ...
+    finally: finalFunction,            // finally function (sync) - e.g. for logging
+});
+
+// Catch unexpected errors here
+let unexpectedErrorHandler = (error, promise) => {
+    console.trace(error);
+    UptimeKumaServer.errorLog(error, false);
+    console.error("If you keep encountering errors, please report to https://github.com/louislam/uptime-kuma/issues");
+};
+process.addListener("unhandledRejection", unexpectedErrorHandler);
+process.addListener("uncaughtException", unexpectedErrorHandler);
diff --git a/server/settings.js b/server/settings.js
new file mode 100644
index 0000000..4776c55
--- /dev/null
+++ b/server/settings.js
@@ -0,0 +1,177 @@
+const { R } = require("redbean-node");
+const { log } = require("../src/util");
+
+class Settings {
+
+    /**
+     *  Example:
+     *      {
+     *         key1: {
+     *             value: "value2",
+     *             timestamp: 12345678
+     *         },
+     *         key2: {
+     *             value: 2,
+     *             timestamp: 12345678
+     *         },
+     *     }
+     * @type {{}}
+     */
+    static cacheList = {
+
+    };
+
+    static cacheCleaner = null;
+
+    /**
+     * Retrieve value of setting based on key
+     * @param {string} key Key of setting to retrieve
+     * @returns {Promise<any>} Value
+     */
+    static async get(key) {
+
+        // Start cache clear if not started yet
+        if (!Settings.cacheCleaner) {
+            Settings.cacheCleaner = setInterval(() => {
+                log.debug("settings", "Cache Cleaner is just started.");
+                for (key in Settings.cacheList) {
+                    if (Date.now() - Settings.cacheList[key].timestamp > 60 * 1000) {
+                        log.debug("settings", "Cache Cleaner deleted: " + key);
+                        delete Settings.cacheList[key];
+                    }
+                }
+
+            }, 60 * 1000);
+        }
+
+        // Query from cache
+        if (key in Settings.cacheList) {
+            const v = Settings.cacheList[key].value;
+            log.debug("settings", `Get Setting (cache): ${key}: ${v}`);
+            return v;
+        }
+
+        let value = await R.getCell("SELECT `value` FROM setting WHERE `key` = ? ", [
+            key,
+        ]);
+
+        try {
+            const v = JSON.parse(value);
+            log.debug("settings", `Get Setting: ${key}: ${v}`);
+
+            Settings.cacheList[key] = {
+                value: v,
+                timestamp: Date.now()
+            };
+
+            return v;
+        } catch (e) {
+            return value;
+        }
+    }
+
+    /**
+     * Sets the specified setting to specified value
+     * @param {string} key Key of setting to set
+     * @param {any} value Value to set to
+     * @param {?string} type Type of setting
+     * @returns {Promise<void>}
+     */
+    static async set(key, value, type = null) {
+
+        let bean = await R.findOne("setting", " `key` = ? ", [
+            key,
+        ]);
+        if (!bean) {
+            bean = R.dispense("setting");
+            bean.key = key;
+        }
+        bean.type = type;
+        bean.value = JSON.stringify(value);
+        await R.store(bean);
+
+        Settings.deleteCache([ key ]);
+    }
+
+    /**
+     * Get settings based on type
+     * @param {string} type The type of setting
+     * @returns {Promise<Bean>} Settings
+     */
+    static async getSettings(type) {
+        let list = await R.getAll("SELECT `key`, `value` FROM setting WHERE `type` = ? ", [
+            type,
+        ]);
+
+        let result = {};
+
+        for (let row of list) {
+            try {
+                result[row.key] = JSON.parse(row.value);
+            } catch (e) {
+                result[row.key] = row.value;
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * Set settings based on type
+     * @param {string} type Type of settings to set
+     * @param {object} data Values of settings
+     * @returns {Promise<void>}
+     */
+    static async setSettings(type, data) {
+        let keyList = Object.keys(data);
+
+        let promiseList = [];
+
+        for (let key of keyList) {
+            let bean = await R.findOne("setting", " `key` = ? ", [
+                key
+            ]);
+
+            if (bean == null) {
+                bean = R.dispense("setting");
+                bean.type = type;
+                bean.key = key;
+            }
+
+            if (bean.type === type) {
+                bean.value = JSON.stringify(data[key]);
+                promiseList.push(R.store(bean));
+            }
+        }
+
+        await Promise.all(promiseList);
+
+        Settings.deleteCache(keyList);
+    }
+
+    /**
+     * Delete selected keys from settings cache
+     * @param {string[]} keyList Keys to remove
+     * @returns {void}
+     */
+    static deleteCache(keyList) {
+        for (let key of keyList) {
+            delete Settings.cacheList[key];
+        }
+    }
+
+    /**
+     * Stop the cache cleaner if running
+     * @returns {void}
+     */
+    static stopCacheCleaner() {
+        if (Settings.cacheCleaner) {
+            clearInterval(Settings.cacheCleaner);
+            Settings.cacheCleaner = null;
+        }
+    }
+}
+
+module.exports = {
+    Settings,
+};
diff --git a/server/setup-database.js b/server/setup-database.js
new file mode 100644
index 0000000..483f2c9
--- /dev/null
+++ b/server/setup-database.js
@@ -0,0 +1,271 @@
+const express = require("express");
+const { log } = require("../src/util");
+const expressStaticGzip = require("express-static-gzip");
+const fs = require("fs");
+const path = require("path");
+const Database = require("./database");
+const { allowDevAllOrigin } = require("./util-server");
+const mysql = require("mysql2/promise");
+
+/**
+ *  A standalone express app that is used to setup a database
+ *  It is used when db-config.json and kuma.db are not found or invalid
+ *  Once it is configured, it will shut down and start the main server
+ */
+class SetupDatabase {
+    /**
+     * Show Setup Page
+     * @type {boolean}
+     */
+    needSetup = true;
+    /**
+     * If the server has finished the setup
+     * @type {boolean}
+     * @private
+     */
+    runningSetup = false;
+    /**
+     * @inheritDoc
+     * @type {UptimeKumaServer}
+     * @private
+     */
+    server;
+
+    /**
+     * @param  {object} args The arguments passed from the command line
+     * @param  {UptimeKumaServer} server the main server instance
+     */
+    constructor(args, server) {
+        this.server = server;
+
+        // Priority: env > db-config.json
+        // If env is provided, write it to db-config.json
+        // If db-config.json is found, check if it is valid
+        // If db-config.json is not found or invalid, check if kuma.db is found
+        // If kuma.db is not found, show setup page
+
+        let dbConfig;
+
+        try {
+            dbConfig = Database.readDBConfig();
+            log.debug("setup-database", "db-config.json is found and is valid");
+            this.needSetup = false;
+
+        } catch (e) {
+            log.info("setup-database", "db-config.json is not found or invalid: " + e.message);
+
+            // Check if kuma.db is found (1.X.X users), generate db-config.json
+            if (fs.existsSync(path.join(Database.dataDir, "kuma.db"))) {
+                this.needSetup = false;
+
+                log.info("setup-database", "kuma.db is found, generate db-config.json");
+                Database.writeDBConfig({
+                    type: "sqlite",
+                });
+            } else {
+                this.needSetup = true;
+            }
+            dbConfig = {};
+        }
+
+        if (process.env.UPTIME_KUMA_DB_TYPE) {
+            this.needSetup = false;
+            log.info("setup-database", "UPTIME_KUMA_DB_TYPE is provided by env, try to override db-config.json");
+            dbConfig.type = process.env.UPTIME_KUMA_DB_TYPE;
+            dbConfig.hostname = process.env.UPTIME_KUMA_DB_HOSTNAME;
+            dbConfig.port = process.env.UPTIME_KUMA_DB_PORT;
+            dbConfig.dbName = process.env.UPTIME_KUMA_DB_NAME;
+            dbConfig.username = process.env.UPTIME_KUMA_DB_USERNAME;
+            dbConfig.password = process.env.UPTIME_KUMA_DB_PASSWORD;
+            Database.writeDBConfig(dbConfig);
+        }
+
+    }
+
+    /**
+     * Show Setup Page
+     * @returns {boolean} true if the setup page should be shown
+     */
+    isNeedSetup() {
+        return this.needSetup;
+    }
+
+    /**
+     * Check if the embedded MariaDB is enabled
+     * @returns {boolean} true if the embedded MariaDB is enabled
+     */
+    isEnabledEmbeddedMariaDB() {
+        return process.env.UPTIME_KUMA_ENABLE_EMBEDDED_MARIADB === "1";
+    }
+
+    /**
+     * Start the setup-database server
+     * @param {string} hostname where the server is listening
+     * @param {number} port where the server is listening
+     * @returns {Promise<void>}
+     */
+    start(hostname, port) {
+        return new Promise((resolve) => {
+            const app = express();
+            let tempServer;
+            app.use(express.json());
+
+            // Disable Keep Alive, otherwise the server will not shutdown, as the client will keep the connection alive
+            app.use(function (req, res, next) {
+                res.setHeader("Connection", "close");
+                next();
+            });
+
+            app.get("/", async (request, response) => {
+                response.redirect("/setup-database");
+            });
+
+            app.get("/api/entry-page", async (request, response) => {
+                allowDevAllOrigin(response);
+                response.json({
+                    type: "setup-database",
+                });
+            });
+
+            app.get("/setup-database-info", (request, response) => {
+                allowDevAllOrigin(response);
+                console.log("Request /setup-database-info");
+                response.json({
+                    runningSetup: this.runningSetup,
+                    needSetup: this.needSetup,
+                    isEnabledEmbeddedMariaDB: this.isEnabledEmbeddedMariaDB(),
+                });
+            });
+
+            app.post("/setup-database", async (request, response) => {
+                allowDevAllOrigin(response);
+
+                if (this.runningSetup) {
+                    response.status(400).json("Setup is already running");
+                    return;
+                }
+
+                this.runningSetup = true;
+
+                let dbConfig = request.body.dbConfig;
+
+                let supportedDBTypes = [ "mariadb", "sqlite" ];
+
+                if (this.isEnabledEmbeddedMariaDB()) {
+                    supportedDBTypes.push("embedded-mariadb");
+                }
+
+                // Validate input
+                if (typeof dbConfig !== "object") {
+                    response.status(400).json("Invalid dbConfig");
+                    this.runningSetup = false;
+                    return;
+                }
+
+                if (!dbConfig.type) {
+                    response.status(400).json("Database Type is required");
+                    this.runningSetup = false;
+                    return;
+                }
+
+                if (!supportedDBTypes.includes(dbConfig.type)) {
+                    response.status(400).json("Unsupported Database Type");
+                    this.runningSetup = false;
+                    return;
+                }
+
+                // External MariaDB
+                if (dbConfig.type === "mariadb") {
+                    if (!dbConfig.hostname) {
+                        response.status(400).json("Hostname is required");
+                        this.runningSetup = false;
+                        return;
+                    }
+
+                    if (!dbConfig.port) {
+                        response.status(400).json("Port is required");
+                        this.runningSetup = false;
+                        return;
+                    }
+
+                    if (!dbConfig.dbName) {
+                        response.status(400).json("Database name is required");
+                        this.runningSetup = false;
+                        return;
+                    }
+
+                    if (!dbConfig.username) {
+                        response.status(400).json("Username is required");
+                        this.runningSetup = false;
+                        return;
+                    }
+
+                    if (!dbConfig.password) {
+                        response.status(400).json("Password is required");
+                        this.runningSetup = false;
+                        return;
+                    }
+
+                    // Test connection
+                    try {
+                        const connection = await mysql.createConnection({
+                            host: dbConfig.hostname,
+                            port: dbConfig.port,
+                            user: dbConfig.username,
+                            password: dbConfig.password,
+                        });
+                        await connection.execute("SELECT 1");
+                        connection.end();
+                    } catch (e) {
+                        response.status(400).json("Cannot connect to the database: " + e.message);
+                        this.runningSetup = false;
+                        return;
+                    }
+                }
+
+                // Write db-config.json
+                Database.writeDBConfig(dbConfig);
+
+                response.json({
+                    ok: true,
+                });
+
+                // Shutdown down this express and start the main server
+                log.info("setup-database", "Database is configured, close the setup-database server and start the main server now.");
+                if (tempServer) {
+                    tempServer.close(() => {
+                        log.info("setup-database", "The setup-database server is closed");
+                        resolve();
+                    });
+                } else {
+                    resolve();
+                }
+
+            });
+
+            app.use("/", expressStaticGzip("dist", {
+                enableBrotli: true,
+            }));
+
+            app.get("*", async (_request, response) => {
+                response.send(this.server.indexHTML);
+            });
+
+            app.options("*", async (_request, response) => {
+                allowDevAllOrigin(response);
+                response.end();
+            });
+
+            tempServer = app.listen(port, hostname, () => {
+                log.info("setup-database", `Starting Setup Database on ${port}`);
+                let domain = (hostname) ? hostname : "localhost";
+                log.info("setup-database", `Open http://${domain}:${port} in your browser`);
+                log.info("setup-database", "Waiting for user action...");
+            });
+        });
+    }
+}
+
+module.exports = {
+    SetupDatabase,
+};
diff --git a/server/socket-handlers/api-key-socket-handler.js b/server/socket-handlers/api-key-socket-handler.js
new file mode 100644
index 0000000..f76b909
--- /dev/null
+++ b/server/socket-handlers/api-key-socket-handler.js
@@ -0,0 +1,155 @@
+const { checkLogin } = require("../util-server");
+const { log } = require("../../src/util");
+const { R } = require("redbean-node");
+const { nanoid } = require("nanoid");
+const passwordHash = require("../password-hash");
+const apicache = require("../modules/apicache");
+const APIKey = require("../model/api_key");
+const { Settings } = require("../settings");
+const { sendAPIKeyList } = require("../client");
+
+/**
+ * Handlers for API keys
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.apiKeySocketHandler = (socket) => {
+    // Add a new api key
+    socket.on("addAPIKey", async (key, callback) => {
+        try {
+            checkLogin(socket);
+
+            let clearKey = nanoid(40);
+            let hashedKey = passwordHash.generate(clearKey);
+            key["key"] = hashedKey;
+            let bean = await APIKey.save(key, socket.userID);
+
+            log.debug("apikeys", "Added API Key");
+            log.debug("apikeys", key);
+
+            // Append key ID and prefix to start of key seperated by _, used to get
+            // correct hash when validating key.
+            let formattedKey = "uk" + bean.id + "_" + clearKey;
+            await sendAPIKeyList(socket);
+
+            // Enable API auth if the user creates a key, otherwise only basic
+            // auth will be used for API.
+            await Settings.set("apiKeysEnabled", true);
+
+            callback({
+                ok: true,
+                msg: "successAdded",
+                msgi18n: true,
+                key: formattedKey,
+                keyID: bean.id,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("getAPIKeyList", async (callback) => {
+        try {
+            checkLogin(socket);
+            await sendAPIKeyList(socket);
+            callback({
+                ok: true,
+            });
+        } catch (e) {
+            console.error(e);
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("deleteAPIKey", async (keyID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("apikeys", `Deleted API Key: ${keyID} User ID: ${socket.userID}`);
+
+            await R.exec("DELETE FROM api_key WHERE id = ? AND user_id = ? ", [
+                keyID,
+                socket.userID,
+            ]);
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successDeleted",
+                msgi18n: true,
+            });
+
+            await sendAPIKeyList(socket);
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("disableAPIKey", async (keyID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("apikeys", `Disabled Key: ${keyID} User ID: ${socket.userID}`);
+
+            await R.exec("UPDATE api_key SET active = 0 WHERE id = ? ", [
+                keyID,
+            ]);
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successDisabled",
+                msgi18n: true,
+            });
+
+            await sendAPIKeyList(socket);
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("enableAPIKey", async (keyID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("apikeys", `Enabled Key: ${keyID} User ID: ${socket.userID}`);
+
+            await R.exec("UPDATE api_key SET active = 1 WHERE id = ? ", [
+                keyID,
+            ]);
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successEnabled",
+                msgi18n: true,
+            });
+
+            await sendAPIKeyList(socket);
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+};
diff --git a/server/socket-handlers/chart-socket-handler.js b/server/socket-handlers/chart-socket-handler.js
new file mode 100644
index 0000000..654db0e
--- /dev/null
+++ b/server/socket-handlers/chart-socket-handler.js
@@ -0,0 +1,38 @@
+const { checkLogin } = require("../util-server");
+const { UptimeCalculator } = require("../uptime-calculator");
+const { log } = require("../../src/util");
+
+module.exports.chartSocketHandler = (socket) => {
+    socket.on("getMonitorChartData", async (monitorID, period, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("monitor", `Get Monitor Chart Data: ${monitorID} User ID: ${socket.userID}`);
+
+            if (period == null) {
+                throw new Error("Invalid period.");
+            }
+
+            let uptimeCalculator = await UptimeCalculator.getUptimeCalculator(monitorID);
+
+            let data;
+            if (period <= 24) {
+                data = uptimeCalculator.getDataArray(period * 60, "minute");
+            } else if (period <= 720) {
+                data = uptimeCalculator.getDataArray(period, "hour");
+            } else {
+                data = uptimeCalculator.getDataArray(period / 24, "day");
+            }
+
+            callback({
+                ok: true,
+                data,
+            });
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+};
diff --git a/server/socket-handlers/cloudflared-socket-handler.js b/server/socket-handlers/cloudflared-socket-handler.js
new file mode 100644
index 0000000..809191f
--- /dev/null
+++ b/server/socket-handlers/cloudflared-socket-handler.js
@@ -0,0 +1,122 @@
+const { checkLogin, setSetting, setting, doubleCheckPassword } = require("../util-server");
+const { CloudflaredTunnel } = require("node-cloudflared-tunnel");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const { log } = require("../../src/util");
+const io = UptimeKumaServer.getInstance().io;
+
+const prefix = "cloudflared_";
+const cloudflared = new CloudflaredTunnel();
+
+/**
+ * Change running state
+ * @param {string} running Is it running?
+ * @param {string} message Message to pass
+ * @returns {void}
+ */
+cloudflared.change = (running, message) => {
+    io.to("cloudflared").emit(prefix + "running", running);
+    io.to("cloudflared").emit(prefix + "message", message);
+};
+
+/**
+ * Emit an error message
+ * @param {string} errorMessage Error message to send
+ * @returns {void}
+ */
+cloudflared.error = (errorMessage) => {
+    io.to("cloudflared").emit(prefix + "errorMessage", errorMessage);
+};
+
+/**
+ * Handler for cloudflared
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.cloudflaredSocketHandler = (socket) => {
+
+    socket.on(prefix + "join", async () => {
+        try {
+            checkLogin(socket);
+            socket.join("cloudflared");
+            io.to(socket.userID).emit(prefix + "installed", cloudflared.checkInstalled());
+            io.to(socket.userID).emit(prefix + "running", cloudflared.running);
+            io.to(socket.userID).emit(prefix + "token", await setting("cloudflaredTunnelToken"));
+        } catch (error) { }
+    });
+
+    socket.on(prefix + "leave", async () => {
+        try {
+            checkLogin(socket);
+            socket.leave("cloudflared");
+        } catch (error) { }
+    });
+
+    socket.on(prefix + "start", async (token) => {
+        try {
+            checkLogin(socket);
+            if (token && typeof token === "string") {
+                await setSetting("cloudflaredTunnelToken", token);
+                cloudflared.token = token;
+            } else {
+                cloudflared.token = null;
+            }
+            cloudflared.start();
+        } catch (error) { }
+    });
+
+    socket.on(prefix + "stop", async (currentPassword, callback) => {
+        try {
+            checkLogin(socket);
+            const disabledAuth = await setting("disableAuth");
+            if (!disabledAuth) {
+                await doubleCheckPassword(socket, currentPassword);
+            }
+            cloudflared.stop();
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    socket.on(prefix + "removeToken", async () => {
+        try {
+            checkLogin(socket);
+            await setSetting("cloudflaredTunnelToken", "");
+        } catch (error) { }
+    });
+
+};
+
+/**
+ * Automatically start cloudflared
+ * @param {string} token Cloudflared tunnel token
+ * @returns {Promise<void>}
+ */
+module.exports.autoStart = async (token) => {
+    if (!token) {
+        token = await setting("cloudflaredTunnelToken");
+    } else {
+        // Override the current token via args or env var
+        await setSetting("cloudflaredTunnelToken", token);
+        console.log("Use cloudflared token from args or env var");
+    }
+
+    if (token) {
+        console.log("Start cloudflared");
+        cloudflared.token = token;
+        cloudflared.start();
+    }
+};
+
+/**
+ * Stop cloudflared
+ * @returns {Promise<void>}
+ */
+module.exports.stop = async () => {
+    log.info("cloudflared", "Stop cloudflared");
+    if (cloudflared) {
+        cloudflared.stop();
+    }
+};
diff --git a/server/socket-handlers/database-socket-handler.js b/server/socket-handlers/database-socket-handler.js
new file mode 100644
index 0000000..ee2394b
--- /dev/null
+++ b/server/socket-handlers/database-socket-handler.js
@@ -0,0 +1,42 @@
+const { checkLogin } = require("../util-server");
+const Database = require("../database");
+
+/**
+ * Handlers for database
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.databaseSocketHandler = (socket) => {
+
+    // Post or edit incident
+    socket.on("getDatabaseSize", async (callback) => {
+        try {
+            checkLogin(socket);
+            callback({
+                ok: true,
+                size: Database.getSize(),
+            });
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    socket.on("shrinkDatabase", async (callback) => {
+        try {
+            checkLogin(socket);
+            await Database.shrink();
+            callback({
+                ok: true,
+            });
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+};
diff --git a/server/socket-handlers/docker-socket-handler.js b/server/socket-handlers/docker-socket-handler.js
new file mode 100644
index 0000000..95a60bc
--- /dev/null
+++ b/server/socket-handlers/docker-socket-handler.js
@@ -0,0 +1,82 @@
+const { sendDockerHostList } = require("../client");
+const { checkLogin } = require("../util-server");
+const { DockerHost } = require("../docker");
+const { log } = require("../../src/util");
+
+/**
+ * Handlers for docker hosts
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.dockerSocketHandler = (socket) => {
+    socket.on("addDockerHost", async (dockerHost, dockerHostID, callback) => {
+        try {
+            checkLogin(socket);
+
+            let dockerHostBean = await DockerHost.save(dockerHost, dockerHostID, socket.userID);
+            await sendDockerHostList(socket);
+
+            callback({
+                ok: true,
+                msg: "Saved.",
+                msgi18n: true,
+                id: dockerHostBean.id,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("deleteDockerHost", async (dockerHostID, callback) => {
+        try {
+            checkLogin(socket);
+
+            await DockerHost.delete(dockerHostID, socket.userID);
+            await sendDockerHostList(socket);
+
+            callback({
+                ok: true,
+                msg: "successDeleted",
+                msgi18n: true,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("testDockerHost", async (dockerHost, callback) => {
+        try {
+            checkLogin(socket);
+
+            let amount = await DockerHost.testDockerHost(dockerHost);
+            let msg;
+
+            if (amount >= 1) {
+                msg = "Connected Successfully. Amount of containers: " + amount;
+            } else {
+                msg = "Connected Successfully, but there are no containers?";
+            }
+
+            callback({
+                ok: true,
+                msg,
+            });
+
+        } catch (e) {
+            log.error("docker", e);
+
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+};
diff --git a/server/socket-handlers/general-socket-handler.js b/server/socket-handlers/general-socket-handler.js
new file mode 100644
index 0000000..50dcd94
--- /dev/null
+++ b/server/socket-handlers/general-socket-handler.js
@@ -0,0 +1,127 @@
+const { log } = require("../../src/util");
+const { Settings } = require("../settings");
+const { sendInfo } = require("../client");
+const { checkLogin } = require("../util-server");
+const GameResolver = require("gamedig/lib/GameResolver");
+const { testChrome } = require("../monitor-types/real-browser-monitor-type");
+const fs = require("fs");
+const path = require("path");
+
+let gameResolver = new GameResolver();
+let gameList = null;
+
+/**
+ * Get a game list via GameDig
+ * @returns {object[]} list of games supported by GameDig
+ */
+function getGameList() {
+    if (gameList == null) {
+        gameList = gameResolver._readGames().games.sort((a, b) => {
+            if ( a.pretty < b.pretty ) {
+                return -1;
+            }
+            if ( a.pretty > b.pretty ) {
+                return 1;
+            }
+            return 0;
+        });
+    }
+    return gameList;
+}
+
+/**
+ * Handler for general events
+ * @param {Socket} socket Socket.io instance
+ * @param {UptimeKumaServer} server Uptime Kuma server
+ * @returns {void}
+ */
+module.exports.generalSocketHandler = (socket, server) => {
+    socket.on("initServerTimezone", async (timezone) => {
+        try {
+            checkLogin(socket);
+            log.debug("generalSocketHandler", "Timezone: " + timezone);
+            await Settings.set("initServerTimezone", true);
+            await server.setTimezone(timezone);
+            await sendInfo(socket);
+        } catch (e) {
+            log.warn("initServerTimezone", e.message);
+        }
+    });
+
+    socket.on("getGameList", async (callback) => {
+        try {
+            checkLogin(socket);
+            callback({
+                ok: true,
+                gameList: getGameList(),
+            });
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("testChrome", (executable, callback) => {
+        try {
+            checkLogin(socket);
+            // Just noticed that await call could block the whole socket.io server!!! Use pure promise instead.
+            testChrome(executable).then((version) => {
+                callback({
+                    ok: true,
+                    msg: {
+                        key: "foundChromiumVersion",
+                        values: [ version ],
+                    },
+                    msgi18n: true,
+                });
+            }).catch((e) => {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            });
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("getPushExample", (language, callback) => {
+
+        try {
+            let dir = path.join("./extra/push-examples", language);
+            let files = fs.readdirSync(dir);
+
+            for (let file of files) {
+                if (file.startsWith("index.")) {
+                    callback({
+                        ok: true,
+                        code: fs.readFileSync(path.join(dir, file), "utf8"),
+                    });
+                    return;
+                }
+            }
+        } catch (e) {
+
+        }
+
+        callback({
+            ok: false,
+            msg: "Not found",
+        });
+    });
+
+    // Disconnect all other socket clients of the user
+    socket.on("disconnectOtherSocketClients", async () => {
+        try {
+            checkLogin(socket);
+            server.disconnectAllSocketClients(socket.userID, socket.id);
+        } catch (e) {
+            log.warn("disconnectAllSocketClients", e.message);
+        }
+    });
+};
diff --git a/server/socket-handlers/maintenance-socket-handler.js b/server/socket-handlers/maintenance-socket-handler.js
new file mode 100644
index 0000000..7de13fe
--- /dev/null
+++ b/server/socket-handlers/maintenance-socket-handler.js
@@ -0,0 +1,337 @@
+const { checkLogin } = require("../util-server");
+const { log } = require("../../src/util");
+const { R } = require("redbean-node");
+const apicache = require("../modules/apicache");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const Maintenance = require("../model/maintenance");
+const server = UptimeKumaServer.getInstance();
+
+/**
+ * Handlers for Maintenance
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.maintenanceSocketHandler = (socket) => {
+    // Add a new maintenance
+    socket.on("addMaintenance", async (maintenance, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", maintenance);
+
+            let bean = await Maintenance.jsonToBean(R.dispense("maintenance"), maintenance);
+            bean.user_id = socket.userID;
+            let maintenanceID = await R.store(bean);
+
+            server.maintenanceList[maintenanceID] = bean;
+            await bean.run(true);
+
+            await server.sendMaintenanceList(socket);
+
+            callback({
+                ok: true,
+                msg: "successAdded",
+                msgi18n: true,
+                maintenanceID,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    // Edit a maintenance
+    socket.on("editMaintenance", async (maintenance, callback) => {
+        try {
+            checkLogin(socket);
+
+            let bean = server.getMaintenance(maintenance.id);
+
+            if (bean.user_id !== socket.userID) {
+                throw new Error("Permission denied.");
+            }
+
+            await Maintenance.jsonToBean(bean, maintenance);
+            await R.store(bean);
+            await bean.run(true);
+            await server.sendMaintenanceList(socket);
+
+            callback({
+                ok: true,
+                msg: "Saved.",
+                msgi18n: true,
+                maintenanceID: bean.id,
+            });
+
+        } catch (e) {
+            console.error(e);
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    // Add a new monitor_maintenance
+    socket.on("addMonitorMaintenance", async (maintenanceID, monitors, callback) => {
+        try {
+            checkLogin(socket);
+
+            await R.exec("DELETE FROM monitor_maintenance WHERE maintenance_id = ?", [
+                maintenanceID
+            ]);
+
+            for await (const monitor of monitors) {
+                let bean = R.dispense("monitor_maintenance");
+
+                bean.import({
+                    monitor_id: monitor.id,
+                    maintenance_id: maintenanceID
+                });
+                await R.store(bean);
+            }
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successAdded",
+                msgi18n: true,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    // Add a new monitor_maintenance
+    socket.on("addMaintenanceStatusPage", async (maintenanceID, statusPages, callback) => {
+        try {
+            checkLogin(socket);
+
+            await R.exec("DELETE FROM maintenance_status_page WHERE maintenance_id = ?", [
+                maintenanceID
+            ]);
+
+            for await (const statusPage of statusPages) {
+                let bean = R.dispense("maintenance_status_page");
+
+                bean.import({
+                    status_page_id: statusPage.id,
+                    maintenance_id: maintenanceID
+                });
+                await R.store(bean);
+            }
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successAdded",
+                msgi18n: true,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("getMaintenance", async (maintenanceID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", `Get Maintenance: ${maintenanceID} User ID: ${socket.userID}`);
+
+            let bean = await R.findOne("maintenance", " id = ? AND user_id = ? ", [
+                maintenanceID,
+                socket.userID,
+            ]);
+
+            callback({
+                ok: true,
+                maintenance: await bean.toJSON(),
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("getMaintenanceList", async (callback) => {
+        try {
+            checkLogin(socket);
+            await server.sendMaintenanceList(socket);
+            callback({
+                ok: true,
+            });
+        } catch (e) {
+            console.error(e);
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("getMonitorMaintenance", async (maintenanceID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", `Get Monitors for Maintenance: ${maintenanceID} User ID: ${socket.userID}`);
+
+            let monitors = await R.getAll("SELECT monitor.id FROM monitor_maintenance mm JOIN monitor ON mm.monitor_id = monitor.id WHERE mm.maintenance_id = ? ", [
+                maintenanceID,
+            ]);
+
+            callback({
+                ok: true,
+                monitors,
+            });
+
+        } catch (e) {
+            console.error(e);
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("getMaintenanceStatusPage", async (maintenanceID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", `Get Status Pages for Maintenance: ${maintenanceID} User ID: ${socket.userID}`);
+
+            let statusPages = await R.getAll("SELECT status_page.id, status_page.title FROM maintenance_status_page msp JOIN status_page ON msp.status_page_id = status_page.id WHERE msp.maintenance_id = ? ", [
+                maintenanceID,
+            ]);
+
+            callback({
+                ok: true,
+                statusPages,
+            });
+
+        } catch (e) {
+            console.error(e);
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("deleteMaintenance", async (maintenanceID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", `Delete Maintenance: ${maintenanceID} User ID: ${socket.userID}`);
+
+            if (maintenanceID in server.maintenanceList) {
+                server.maintenanceList[maintenanceID].stop();
+                delete server.maintenanceList[maintenanceID];
+            }
+
+            await R.exec("DELETE FROM maintenance WHERE id = ? AND user_id = ? ", [
+                maintenanceID,
+                socket.userID,
+            ]);
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successDeleted",
+                msgi18n: true,
+            });
+
+            await server.sendMaintenanceList(socket);
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("pauseMaintenance", async (maintenanceID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", `Pause Maintenance: ${maintenanceID} User ID: ${socket.userID}`);
+
+            let maintenance = server.getMaintenance(maintenanceID);
+
+            if (!maintenance) {
+                throw new Error("Maintenance not found");
+            }
+
+            maintenance.active = false;
+            await R.store(maintenance);
+            maintenance.stop();
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successPaused",
+                msgi18n: true,
+            });
+
+            await server.sendMaintenanceList(socket);
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("resumeMaintenance", async (maintenanceID, callback) => {
+        try {
+            checkLogin(socket);
+
+            log.debug("maintenance", `Resume Maintenance: ${maintenanceID} User ID: ${socket.userID}`);
+
+            let maintenance = server.getMaintenance(maintenanceID);
+
+            if (!maintenance) {
+                throw new Error("Maintenance not found");
+            }
+
+            maintenance.active = true;
+            await R.store(maintenance);
+            await maintenance.run();
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                msg: "successResumed",
+                msgi18n: true,
+            });
+
+            await server.sendMaintenanceList(socket);
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+};
diff --git a/server/socket-handlers/proxy-socket-handler.js b/server/socket-handlers/proxy-socket-handler.js
new file mode 100644
index 0000000..9e80371
--- /dev/null
+++ b/server/socket-handlers/proxy-socket-handler.js
@@ -0,0 +1,61 @@
+const { checkLogin } = require("../util-server");
+const { Proxy } = require("../proxy");
+const { sendProxyList } = require("../client");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const server = UptimeKumaServer.getInstance();
+
+/**
+ * Handlers for proxy
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.proxySocketHandler = (socket) => {
+    socket.on("addProxy", async (proxy, proxyID, callback) => {
+        try {
+            checkLogin(socket);
+
+            const proxyBean = await Proxy.save(proxy, proxyID, socket.userID);
+            await sendProxyList(socket);
+
+            if (proxy.applyExisting) {
+                await Proxy.reloadProxy();
+                await server.sendMonitorList(socket);
+            }
+
+            callback({
+                ok: true,
+                msg: "Saved.",
+                msgi18n: true,
+                id: proxyBean.id,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("deleteProxy", async (proxyID, callback) => {
+        try {
+            checkLogin(socket);
+
+            await Proxy.delete(proxyID, socket.userID);
+            await sendProxyList(socket);
+            await Proxy.reloadProxy();
+
+            callback({
+                ok: true,
+                msg: "successDeleted",
+                msgi18n: true,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+};
diff --git a/server/socket-handlers/remote-browser-socket-handler.js b/server/socket-handlers/remote-browser-socket-handler.js
new file mode 100644
index 0000000..ae53030
--- /dev/null
+++ b/server/socket-handlers/remote-browser-socket-handler.js
@@ -0,0 +1,82 @@
+const { sendRemoteBrowserList } = require("../client");
+const { checkLogin } = require("../util-server");
+const { RemoteBrowser } = require("../remote-browser");
+
+const { log } = require("../../src/util");
+const { testRemoteBrowser } = require("../monitor-types/real-browser-monitor-type");
+
+/**
+ * Handlers for docker hosts
+ * @param {Socket} socket Socket.io instance
+ * @returns {void}
+ */
+module.exports.remoteBrowserSocketHandler = (socket) => {
+    socket.on("addRemoteBrowser", async (remoteBrowser, remoteBrowserID, callback) => {
+        try {
+            checkLogin(socket);
+
+            let remoteBrowserBean = await RemoteBrowser.save(remoteBrowser, remoteBrowserID, socket.userID);
+            await sendRemoteBrowserList(socket);
+
+            callback({
+                ok: true,
+                msg: "Saved.",
+                msgi18n: true,
+                id: remoteBrowserBean.id,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("deleteRemoteBrowser", async (dockerHostID, callback) => {
+        try {
+            checkLogin(socket);
+
+            await RemoteBrowser.delete(dockerHostID, socket.userID);
+            await sendRemoteBrowserList(socket);
+
+            callback({
+                ok: true,
+                msg: "successDeleted",
+                msgi18n: true,
+            });
+
+        } catch (e) {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+
+    socket.on("testRemoteBrowser", async (remoteBrowser, callback) => {
+        try {
+            checkLogin(socket);
+            let check = await testRemoteBrowser(remoteBrowser.url);
+            log.info("remoteBrowser", "Tested remote browser: " + check);
+            let msg;
+
+            if (check) {
+                msg = "Connected Successfully.";
+            }
+
+            callback({
+                ok: true,
+                msg,
+            });
+
+        } catch (e) {
+            log.error("remoteBrowser", e);
+
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    });
+};
diff --git a/server/socket-handlers/status-page-socket-handler.js b/server/socket-handlers/status-page-socket-handler.js
new file mode 100644
index 0000000..0804da1
--- /dev/null
+++ b/server/socket-handlers/status-page-socket-handler.js
@@ -0,0 +1,374 @@
+const { R } = require("redbean-node");
+const { checkLogin, setSetting } = require("../util-server");
+const dayjs = require("dayjs");
+const { log } = require("../../src/util");
+const ImageDataURI = require("../image-data-uri");
+const Database = require("../database");
+const apicache = require("../modules/apicache");
+const StatusPage = require("../model/status_page");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+
+/**
+ * Socket handlers for status page
+ * @param {Socket} socket Socket.io instance to add listeners on
+ * @returns {void}
+ */
+module.exports.statusPageSocketHandler = (socket) => {
+
+    // Post or edit incident
+    socket.on("postIncident", async (slug, incident, callback) => {
+        try {
+            checkLogin(socket);
+
+            let statusPageID = await StatusPage.slugToID(slug);
+
+            if (!statusPageID) {
+                throw new Error("slug is not found");
+            }
+
+            await R.exec("UPDATE incident SET pin = 0 WHERE status_page_id = ? ", [
+                statusPageID
+            ]);
+
+            let incidentBean;
+
+            if (incident.id) {
+                incidentBean = await R.findOne("incident", " id = ? AND status_page_id = ? ", [
+                    incident.id,
+                    statusPageID
+                ]);
+            }
+
+            if (incidentBean == null) {
+                incidentBean = R.dispense("incident");
+            }
+
+            incidentBean.title = incident.title;
+            incidentBean.content = incident.content;
+            incidentBean.style = incident.style;
+            incidentBean.pin = true;
+            incidentBean.status_page_id = statusPageID;
+
+            if (incident.id) {
+                incidentBean.lastUpdatedDate = R.isoDateTime(dayjs.utc());
+            } else {
+                incidentBean.createdDate = R.isoDateTime(dayjs.utc());
+            }
+
+            await R.store(incidentBean);
+
+            callback({
+                ok: true,
+                incident: incidentBean.toPublicJSON(),
+            });
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    socket.on("unpinIncident", async (slug, callback) => {
+        try {
+            checkLogin(socket);
+
+            let statusPageID = await StatusPage.slugToID(slug);
+
+            await R.exec("UPDATE incident SET pin = 0 WHERE pin = 1 AND status_page_id = ? ", [
+                statusPageID
+            ]);
+
+            callback({
+                ok: true,
+            });
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    socket.on("getStatusPage", async (slug, callback) => {
+        try {
+            checkLogin(socket);
+
+            let statusPage = await R.findOne("status_page", " slug = ? ", [
+                slug
+            ]);
+
+            if (!statusPage) {
+                throw new Error("No slug?");
+            }
+
+            callback({
+                ok: true,
+                config: await statusPage.toJSON(),
+            });
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    // Save Status Page
+    // imgDataUrl Only Accept PNG!
+    socket.on("saveStatusPage", async (slug, config, imgDataUrl, publicGroupList, callback) => {
+        try {
+            checkLogin(socket);
+
+            // Save Config
+            let statusPage = await R.findOne("status_page", " slug = ? ", [
+                slug
+            ]);
+
+            if (!statusPage) {
+                throw new Error("No slug?");
+            }
+
+            checkSlug(config.slug);
+
+            const header = "data:image/png;base64,";
+
+            // Check logo format
+            // If is image data url, convert to png file
+            // Else assume it is a url, nothing to do
+            if (imgDataUrl.startsWith("data:")) {
+                if (! imgDataUrl.startsWith(header)) {
+                    throw new Error("Only allowed PNG logo.");
+                }
+
+                const filename = `logo${statusPage.id}.png`;
+
+                // Convert to file
+                await ImageDataURI.outputFile(imgDataUrl, Database.uploadDir + filename);
+                config.logo = `/upload/${filename}?t=` + Date.now();
+
+            } else {
+                config.logo = imgDataUrl;
+            }
+
+            statusPage.slug = config.slug;
+            statusPage.title = config.title;
+            statusPage.description = config.description;
+            statusPage.icon = config.logo;
+            statusPage.autoRefreshInterval = config.autoRefreshInterval,
+            statusPage.theme = config.theme;
+            //statusPage.published = ;
+            //statusPage.search_engine_index = ;
+            statusPage.show_tags = config.showTags;
+            //statusPage.password = null;
+            statusPage.footer_text = config.footerText;
+            statusPage.custom_css = config.customCSS;
+            statusPage.show_powered_by = config.showPoweredBy;
+            statusPage.show_certificate_expiry = config.showCertificateExpiry;
+            statusPage.modified_date = R.isoDateTime();
+            statusPage.google_analytics_tag_id = config.googleAnalyticsId;
+
+            await R.store(statusPage);
+
+            await statusPage.updateDomainNameList(config.domainNameList);
+            await StatusPage.loadDomainMappingList();
+
+            // Save Public Group List
+            const groupIDList = [];
+            let groupOrder = 1;
+
+            for (let group of publicGroupList) {
+                let groupBean;
+                if (group.id) {
+                    groupBean = await R.findOne("group", " id = ? AND public = 1 AND status_page_id = ? ", [
+                        group.id,
+                        statusPage.id
+                    ]);
+                } else {
+                    groupBean = R.dispense("group");
+                }
+
+                groupBean.status_page_id = statusPage.id;
+                groupBean.name = group.name;
+                groupBean.public = true;
+                groupBean.weight = groupOrder++;
+
+                await R.store(groupBean);
+
+                await R.exec("DELETE FROM monitor_group WHERE group_id = ? ", [
+                    groupBean.id
+                ]);
+
+                let monitorOrder = 1;
+
+                for (let monitor of group.monitorList) {
+                    let relationBean = R.dispense("monitor_group");
+                    relationBean.weight = monitorOrder++;
+                    relationBean.group_id = groupBean.id;
+                    relationBean.monitor_id = monitor.id;
+
+                    if (monitor.sendUrl !== undefined) {
+                        relationBean.send_url = monitor.sendUrl;
+                    }
+
+                    await R.store(relationBean);
+                }
+
+                groupIDList.push(groupBean.id);
+                group.id = groupBean.id;
+            }
+
+            // Delete groups that are not in the list
+            log.debug("socket", "Delete groups that are not in the list");
+            const slots = groupIDList.map(() => "?").join(",");
+
+            const data = [
+                ...groupIDList,
+                statusPage.id
+            ];
+            await R.exec(`DELETE FROM \`group\` WHERE id NOT IN (${slots}) AND status_page_id = ?`, data);
+
+            const server = UptimeKumaServer.getInstance();
+
+            // Also change entry page to new slug if it is the default one, and slug is changed.
+            if (server.entryPage === "statusPage-" + slug && statusPage.slug !== slug) {
+                server.entryPage = "statusPage-" + statusPage.slug;
+                await setSetting("entryPage", server.entryPage, "general");
+            }
+
+            apicache.clear();
+
+            callback({
+                ok: true,
+                publicGroupList,
+            });
+
+        } catch (error) {
+            log.error("socket", error);
+
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    // Add a new status page
+    socket.on("addStatusPage", async (title, slug, callback) => {
+        try {
+            checkLogin(socket);
+
+            title = title?.trim();
+            slug = slug?.trim();
+
+            // Check empty
+            if (!title || !slug) {
+                throw new Error("Please input all fields");
+            }
+
+            // Make sure slug is string
+            if (typeof slug !== "string") {
+                throw new Error("Slug -Accept string only");
+            }
+
+            // lower case only
+            slug = slug.toLowerCase();
+
+            checkSlug(slug);
+
+            let statusPage = R.dispense("status_page");
+            statusPage.slug = slug;
+            statusPage.title = title;
+            statusPage.theme = "auto";
+            statusPage.icon = "";
+            statusPage.autoRefreshInterval = 300;
+            await R.store(statusPage);
+
+            callback({
+                ok: true,
+                msg: "successAdded",
+                msgi18n: true,
+            });
+
+        } catch (error) {
+            console.error(error);
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+
+    // Delete a status page
+    socket.on("deleteStatusPage", async (slug, callback) => {
+        const server = UptimeKumaServer.getInstance();
+
+        try {
+            checkLogin(socket);
+
+            let statusPageID = await StatusPage.slugToID(slug);
+
+            if (statusPageID) {
+
+                // Reset entry page if it is the default one.
+                if (server.entryPage === "statusPage-" + slug) {
+                    server.entryPage = "dashboard";
+                    await setSetting("entryPage", server.entryPage, "general");
+                }
+
+                // No need to delete records from `status_page_cname`, because it has cascade foreign key.
+                // But for incident & group, it is hard to add cascade foreign key during migration, so they have to be deleted manually.
+
+                // Delete incident
+                await R.exec("DELETE FROM incident WHERE status_page_id = ? ", [
+                    statusPageID
+                ]);
+
+                // Delete group
+                await R.exec("DELETE FROM `group` WHERE status_page_id = ? ", [
+                    statusPageID
+                ]);
+
+                // Delete status_page
+                await R.exec("DELETE FROM status_page WHERE id = ? ", [
+                    statusPageID
+                ]);
+
+            } else {
+                throw new Error("Status Page is not found");
+            }
+
+            callback({
+                ok: true,
+            });
+        } catch (error) {
+            callback({
+                ok: false,
+                msg: error.message,
+            });
+        }
+    });
+};
+
+/**
+ * Check slug a-z, 0-9, - only
+ * Regex from: https://stackoverflow.com/questions/22454258/js-regex-string-validation-for-slug
+ * @param {string} slug Slug to test
+ * @returns {void}
+ * @throws Slug is not valid
+ */
+function checkSlug(slug) {
+    if (typeof slug !== "string") {
+        throw new Error("Slug must be string");
+    }
+
+    slug = slug.trim();
+
+    if (!slug) {
+        throw new Error("Slug cannot be empty");
+    }
+
+    if (!slug.match(/^[A-Za-z0-9]+(?:-[A-Za-z0-9]+)*$/)) {
+        throw new Error("Invalid Slug");
+    }
+}
diff --git a/server/uptime-calculator.js b/server/uptime-calculator.js
new file mode 100644
index 0000000..71d1d45
--- /dev/null
+++ b/server/uptime-calculator.js
@@ -0,0 +1,865 @@
+const dayjs = require("dayjs");
+const { UP, MAINTENANCE, DOWN, PENDING } = require("../src/util");
+const { LimitQueue } = require("./utils/limit-queue");
+const { log } = require("../src/util");
+const { R } = require("redbean-node");
+
+/**
+ * Calculates the uptime of a monitor.
+ */
+class UptimeCalculator {
+    /**
+     * @private
+     * @type {{string:UptimeCalculator}}
+     */
+    static list = {};
+
+    /**
+     * For testing purposes, we can set the current date to a specific date.
+     * @type {dayjs.Dayjs}
+     */
+    static currentDate = null;
+
+    /**
+     * monitorID the id of the monitor
+     * @type {number}
+     */
+    monitorID;
+
+    /**
+     * Recent 24-hour uptime, each item is a 1-minute interval
+     * Key: {number} DivisionKey
+     * @type {LimitQueue<number,string>}
+     */
+    minutelyUptimeDataList = new LimitQueue(24 * 60);
+
+    /**
+     * Recent 30-day uptime, each item is a 1-hour interval
+     * Key: {number} DivisionKey
+     * @type {LimitQueue<number,string>}
+     */
+    hourlyUptimeDataList = new LimitQueue(30 * 24);
+
+    /**
+     * Daily uptime data,
+     * Key: {number} DailyKey
+     */
+    dailyUptimeDataList = new LimitQueue(365);
+
+    lastUptimeData = null;
+    lastHourlyUptimeData = null;
+    lastDailyUptimeData = null;
+
+    lastDailyStatBean = null;
+    lastHourlyStatBean = null;
+    lastMinutelyStatBean = null;
+
+    /**
+     * For migration purposes.
+     * @type {boolean}
+     */
+    migrationMode = false;
+
+    statMinutelyKeepHour = 24;
+    statHourlyKeepDay = 30;
+
+    /**
+     * Get the uptime calculator for a monitor
+     * Initializes and returns the monitor if it does not exist
+     * @param {number} monitorID the id of the monitor
+     * @returns {Promise<UptimeCalculator>} UptimeCalculator
+     */
+    static async getUptimeCalculator(monitorID) {
+        if (!monitorID) {
+            throw new Error("Monitor ID is required");
+        }
+
+        if (!UptimeCalculator.list[monitorID]) {
+            UptimeCalculator.list[monitorID] = new UptimeCalculator();
+            await UptimeCalculator.list[monitorID].init(monitorID);
+        }
+        return UptimeCalculator.list[monitorID];
+    }
+
+    /**
+     * Remove a monitor from the list
+     * @param {number} monitorID the id of the monitor
+     * @returns {Promise<void>}
+     */
+    static async remove(monitorID) {
+        delete UptimeCalculator.list[monitorID];
+    }
+
+    /**
+     *
+     */
+    constructor() {
+        if (process.env.TEST_BACKEND) {
+            // Override the getCurrentDate() method to return a specific date
+            // Only for testing
+            this.getCurrentDate = () => {
+                if (UptimeCalculator.currentDate) {
+                    return UptimeCalculator.currentDate;
+                } else {
+                    return dayjs.utc();
+                }
+            };
+        }
+    }
+
+    /**
+     * Initialize the uptime calculator for a monitor
+     * @param {number} monitorID the id of the monitor
+     * @returns {Promise<void>}
+     */
+    async init(monitorID) {
+        this.monitorID = monitorID;
+
+        let now = this.getCurrentDate();
+
+        // Load minutely data from database (recent 24 hours only)
+        let minutelyStatBeans = await R.find("stat_minutely", " monitor_id = ? AND timestamp > ? ORDER BY timestamp", [
+            monitorID,
+            this.getMinutelyKey(now.subtract(24, "hour")),
+        ]);
+
+        for (let bean of minutelyStatBeans) {
+            let data = {
+                up: bean.up,
+                down: bean.down,
+                avgPing: bean.ping,
+                minPing: bean.pingMin,
+                maxPing: bean.pingMax,
+            };
+
+            if (bean.extras != null) {
+                data = {
+                    ...data,
+                    ...JSON.parse(bean.extras),
+                };
+            }
+
+            let key = bean.timestamp;
+            this.minutelyUptimeDataList.push(key, data);
+        }
+
+        // Load hourly data from database (recent 30 days only)
+        let hourlyStatBeans = await R.find("stat_hourly", " monitor_id = ? AND timestamp > ? ORDER BY timestamp", [
+            monitorID,
+            this.getHourlyKey(now.subtract(30, "day")),
+        ]);
+
+        for (let bean of hourlyStatBeans) {
+            let data = {
+                up: bean.up,
+                down: bean.down,
+                avgPing: bean.ping,
+                minPing: bean.pingMin,
+                maxPing: bean.pingMax,
+            };
+
+            if (bean.extras != null) {
+                data = {
+                    ...data,
+                    ...JSON.parse(bean.extras),
+                };
+            }
+
+            this.hourlyUptimeDataList.push(bean.timestamp, data);
+        }
+
+        // Load daily data from database (recent 365 days only)
+        let dailyStatBeans = await R.find("stat_daily", " monitor_id = ? AND timestamp > ? ORDER BY timestamp", [
+            monitorID,
+            this.getDailyKey(now.subtract(365, "day")),
+        ]);
+
+        for (let bean of dailyStatBeans) {
+            let data = {
+                up: bean.up,
+                down: bean.down,
+                avgPing: bean.ping,
+                minPing: bean.pingMin,
+                maxPing: bean.pingMax,
+            };
+
+            if (bean.extras != null) {
+                data = {
+                    ...data,
+                    ...JSON.parse(bean.extras),
+                };
+            }
+
+            this.dailyUptimeDataList.push(bean.timestamp, data);
+        }
+    }
+
+    /**
+     * @param {number} status status
+     * @param {number} ping Ping
+     * @param {dayjs.Dayjs} date Date (Only for migration)
+     * @returns {dayjs.Dayjs} date
+     * @throws {Error} Invalid status
+     */
+    async update(status, ping = 0, date) {
+        if (!date) {
+            date = this.getCurrentDate();
+        }
+
+        let flatStatus = this.flatStatus(status);
+
+        if (flatStatus === DOWN && ping > 0) {
+            log.debug("uptime-calc", "The ping is not effective when the status is DOWN");
+        }
+
+        let divisionKey = this.getMinutelyKey(date);
+        let hourlyKey = this.getHourlyKey(date);
+        let dailyKey = this.getDailyKey(date);
+
+        let minutelyData = this.minutelyUptimeDataList[divisionKey];
+        let hourlyData = this.hourlyUptimeDataList[hourlyKey];
+        let dailyData = this.dailyUptimeDataList[dailyKey];
+
+        if (status === MAINTENANCE) {
+            minutelyData.maintenance = minutelyData.maintenance ? minutelyData.maintenance + 1 : 1;
+            hourlyData.maintenance = hourlyData.maintenance ? hourlyData.maintenance + 1 : 1;
+            dailyData.maintenance = dailyData.maintenance ? dailyData.maintenance + 1 : 1;
+
+        } else if (flatStatus === UP) {
+            minutelyData.up += 1;
+            hourlyData.up += 1;
+            dailyData.up += 1;
+
+            // Only UP status can update the ping
+            if (!isNaN(ping)) {
+                // Add avg ping
+                // The first beat of the minute, the ping is the current ping
+                if (minutelyData.up === 1) {
+                    minutelyData.avgPing = ping;
+                    minutelyData.minPing = ping;
+                    minutelyData.maxPing = ping;
+                } else {
+                    minutelyData.avgPing = (minutelyData.avgPing * (minutelyData.up - 1) + ping) / minutelyData.up;
+                    minutelyData.minPing = Math.min(minutelyData.minPing, ping);
+                    minutelyData.maxPing = Math.max(minutelyData.maxPing, ping);
+                }
+
+                // Add avg ping
+                // The first beat of the hour, the ping is the current ping
+                if (hourlyData.up === 1) {
+                    hourlyData.avgPing = ping;
+                    hourlyData.minPing = ping;
+                    hourlyData.maxPing = ping;
+                } else {
+                    hourlyData.avgPing = (hourlyData.avgPing * (hourlyData.up - 1) + ping) / hourlyData.up;
+                    hourlyData.minPing = Math.min(hourlyData.minPing, ping);
+                    hourlyData.maxPing = Math.max(hourlyData.maxPing, ping);
+                }
+
+                // Add avg ping (daily)
+                // The first beat of the day, the ping is the current ping
+                if (dailyData.up === 1) {
+                    dailyData.avgPing = ping;
+                    dailyData.minPing = ping;
+                    dailyData.maxPing = ping;
+                } else {
+                    dailyData.avgPing = (dailyData.avgPing * (dailyData.up - 1) + ping) / dailyData.up;
+                    dailyData.minPing = Math.min(dailyData.minPing, ping);
+                    dailyData.maxPing = Math.max(dailyData.maxPing, ping);
+                }
+            }
+
+        } else if (flatStatus === DOWN) {
+            minutelyData.down += 1;
+            hourlyData.down += 1;
+            dailyData.down += 1;
+        }
+
+        if (minutelyData !== this.lastUptimeData) {
+            this.lastUptimeData = minutelyData;
+        }
+
+        if (hourlyData !== this.lastHourlyUptimeData) {
+            this.lastHourlyUptimeData = hourlyData;
+        }
+
+        if (dailyData !== this.lastDailyUptimeData) {
+            this.lastDailyUptimeData = dailyData;
+        }
+
+        // Don't store data in test mode
+        if (process.env.TEST_BACKEND) {
+            log.debug("uptime-calc", "Skip storing data in test mode");
+            return date;
+        }
+
+        let dailyStatBean = await this.getDailyStatBean(dailyKey);
+        dailyStatBean.up = dailyData.up;
+        dailyStatBean.down = dailyData.down;
+        dailyStatBean.ping = dailyData.avgPing;
+        dailyStatBean.pingMin = dailyData.minPing;
+        dailyStatBean.pingMax = dailyData.maxPing;
+        {
+            // eslint-disable-next-line no-unused-vars
+            const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = dailyData;
+            if (Object.keys(extras).length > 0) {
+                dailyStatBean.extras = JSON.stringify(extras);
+            }
+        }
+        await R.store(dailyStatBean);
+
+        let currentDate = this.getCurrentDate();
+
+        // For migration mode, we don't need to store old hourly and minutely data, but we need 30-day's hourly data
+        // Run anyway for non-migration mode
+        if (!this.migrationMode || date.isAfter(currentDate.subtract(this.statHourlyKeepDay, "day"))) {
+            let hourlyStatBean = await this.getHourlyStatBean(hourlyKey);
+            hourlyStatBean.up = hourlyData.up;
+            hourlyStatBean.down = hourlyData.down;
+            hourlyStatBean.ping = hourlyData.avgPing;
+            hourlyStatBean.pingMin = hourlyData.minPing;
+            hourlyStatBean.pingMax = hourlyData.maxPing;
+            {
+                // eslint-disable-next-line no-unused-vars
+                const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = hourlyData;
+                if (Object.keys(extras).length > 0) {
+                    hourlyStatBean.extras = JSON.stringify(extras);
+                }
+            }
+            await R.store(hourlyStatBean);
+        }
+
+        // For migration mode, we don't need to store old hourly and minutely data, but we need 24-hour's minutely data
+        // Run anyway for non-migration mode
+        if (!this.migrationMode || date.isAfter(currentDate.subtract(this.statMinutelyKeepHour, "hour"))) {
+            let minutelyStatBean = await this.getMinutelyStatBean(divisionKey);
+            minutelyStatBean.up = minutelyData.up;
+            minutelyStatBean.down = minutelyData.down;
+            minutelyStatBean.ping = minutelyData.avgPing;
+            minutelyStatBean.pingMin = minutelyData.minPing;
+            minutelyStatBean.pingMax = minutelyData.maxPing;
+            {
+                // eslint-disable-next-line no-unused-vars
+                const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = minutelyData;
+                if (Object.keys(extras).length > 0) {
+                    minutelyStatBean.extras = JSON.stringify(extras);
+                }
+            }
+            await R.store(minutelyStatBean);
+        }
+
+        // No need to remove old data in migration mode
+        if (!this.migrationMode) {
+            // Remove the old data
+            // TODO: Improvement: Convert it to a job?
+            log.debug("uptime-calc", "Remove old data");
+            await R.exec("DELETE FROM stat_minutely WHERE monitor_id = ? AND timestamp < ?", [
+                this.monitorID,
+                this.getMinutelyKey(currentDate.subtract(this.statMinutelyKeepHour, "hour")),
+            ]);
+
+            await R.exec("DELETE FROM stat_hourly WHERE monitor_id = ? AND timestamp < ?", [
+                this.monitorID,
+                this.getHourlyKey(currentDate.subtract(this.statHourlyKeepDay, "day")),
+            ]);
+        }
+
+        return date;
+    }
+
+    /**
+     * Get the daily stat bean
+     * @param {number} timestamp milliseconds
+     * @returns {Promise<import("redbean-node").Bean>} stat_daily bean
+     */
+    async getDailyStatBean(timestamp) {
+        if (this.lastDailyStatBean && this.lastDailyStatBean.timestamp === timestamp) {
+            return this.lastDailyStatBean;
+        }
+
+        let bean = await R.findOne("stat_daily", " monitor_id = ? AND timestamp = ?", [
+            this.monitorID,
+            timestamp,
+        ]);
+
+        if (!bean) {
+            bean = R.dispense("stat_daily");
+            bean.monitor_id = this.monitorID;
+            bean.timestamp = timestamp;
+        }
+
+        this.lastDailyStatBean = bean;
+        return this.lastDailyStatBean;
+    }
+
+    /**
+     * Get the hourly stat bean
+     * @param {number} timestamp milliseconds
+     * @returns {Promise<import("redbean-node").Bean>} stat_hourly bean
+     */
+    async getHourlyStatBean(timestamp) {
+        if (this.lastHourlyStatBean && this.lastHourlyStatBean.timestamp === timestamp) {
+            return this.lastHourlyStatBean;
+        }
+
+        let bean = await R.findOne("stat_hourly", " monitor_id = ? AND timestamp = ?", [
+            this.monitorID,
+            timestamp,
+        ]);
+
+        if (!bean) {
+            bean = R.dispense("stat_hourly");
+            bean.monitor_id = this.monitorID;
+            bean.timestamp = timestamp;
+        }
+
+        this.lastHourlyStatBean = bean;
+        return this.lastHourlyStatBean;
+    }
+
+    /**
+     * Get the minutely stat bean
+     * @param {number} timestamp milliseconds
+     * @returns {Promise<import("redbean-node").Bean>} stat_minutely bean
+     */
+    async getMinutelyStatBean(timestamp) {
+        if (this.lastMinutelyStatBean && this.lastMinutelyStatBean.timestamp === timestamp) {
+            return this.lastMinutelyStatBean;
+        }
+
+        let bean = await R.findOne("stat_minutely", " monitor_id = ? AND timestamp = ?", [
+            this.monitorID,
+            timestamp,
+        ]);
+
+        if (!bean) {
+            bean = R.dispense("stat_minutely");
+            bean.monitor_id = this.monitorID;
+            bean.timestamp = timestamp;
+        }
+
+        this.lastMinutelyStatBean = bean;
+        return this.lastMinutelyStatBean;
+    }
+
+    /**
+     * Convert timestamp to minutely key
+     * @param {dayjs.Dayjs} date The heartbeat date
+     * @returns {number} Timestamp
+     */
+    getMinutelyKey(date) {
+        // Truncate value to minutes (e.g. 2021-01-01 12:34:56 -> 2021-01-01 12:34:00)
+        date = date.startOf("minute");
+
+        // Convert to timestamp in second
+        let divisionKey = date.unix();
+
+        if (! (divisionKey in this.minutelyUptimeDataList)) {
+            this.minutelyUptimeDataList.push(divisionKey, {
+                up: 0,
+                down: 0,
+                avgPing: 0,
+                minPing: 0,
+                maxPing: 0,
+            });
+        }
+
+        return divisionKey;
+    }
+
+    /**
+     * Convert timestamp to hourly key
+     * @param {dayjs.Dayjs} date The heartbeat date
+     * @returns {number} Timestamp
+     */
+    getHourlyKey(date) {
+        // Truncate value to hours (e.g. 2021-01-01 12:34:56 -> 2021-01-01 12:00:00)
+        date = date.startOf("hour");
+
+        // Convert to timestamp in second
+        let divisionKey = date.unix();
+
+        if (! (divisionKey in this.hourlyUptimeDataList)) {
+            this.hourlyUptimeDataList.push(divisionKey, {
+                up: 0,
+                down: 0,
+                avgPing: 0,
+                minPing: 0,
+                maxPing: 0,
+            });
+        }
+
+        return divisionKey;
+    }
+
+    /**
+     * Convert timestamp to daily key
+     * @param {dayjs.Dayjs} date The heartbeat date
+     * @returns {number} Timestamp
+     */
+    getDailyKey(date) {
+        // Truncate value to start of day (e.g. 2021-01-01 12:34:56 -> 2021-01-01 00:00:00)
+        // Considering if the user keep changing could affect the calculation, so use UTC time to avoid this problem.
+        date = date.utc().startOf("day");
+        let dailyKey = date.unix();
+
+        if (!this.dailyUptimeDataList[dailyKey]) {
+            this.dailyUptimeDataList.push(dailyKey, {
+                up: 0,
+                down: 0,
+                avgPing: 0,
+                minPing: 0,
+                maxPing: 0,
+            });
+        }
+
+        return dailyKey;
+    }
+
+    /**
+     * Convert timestamp to key
+     * @param {dayjs.Dayjs} datetime Datetime
+     * @param {"day" | "hour" | "minute"} type the type of data which is expected to be returned
+     * @returns {number} Timestamp
+     * @throws {Error} If the type is invalid
+     */
+    getKey(datetime, type) {
+        switch (type) {
+            case "day":
+                return this.getDailyKey(datetime);
+            case "hour":
+                return this.getHourlyKey(datetime);
+            case "minute":
+                return this.getMinutelyKey(datetime);
+            default:
+                throw new Error("Invalid type");
+        }
+    }
+
+    /**
+     * Flat status to UP or DOWN
+     * @param {number} status the status which should be turned into a flat status
+     * @returns {UP|DOWN|PENDING} The flat status
+     * @throws {Error} Invalid status
+     */
+    flatStatus(status) {
+        switch (status) {
+            case UP:
+            case MAINTENANCE:
+                return UP;
+            case DOWN:
+            case PENDING:
+                return DOWN;
+        }
+        throw new Error("Invalid status");
+    }
+
+    /**
+     * @param {number} num the number of data points which are expected to be returned
+     * @param {"day" | "hour" | "minute"} type the type of data which is expected to be returned
+     * @returns {UptimeDataResult} UptimeDataResult
+     * @throws {Error} The maximum number of minutes greater than 1440
+     */
+    getData(num, type = "day") {
+
+        if (type === "hour" && num > 24 * 30) {
+            throw new Error("The maximum number of hours is 720");
+        }
+        if (type === "minute" && num > 24 * 60) {
+            throw new Error("The maximum number of minutes is 1440");
+        }
+        if (type === "day" && num > 365) {
+            throw new Error("The maximum number of days is 365");
+        }
+        // Get the current time period key based on the type
+        let key = this.getKey(this.getCurrentDate(), type);
+
+        let total = {
+            up: 0,
+            down: 0,
+        };
+
+        let totalPing = 0;
+        let endTimestamp;
+
+        // Get the eariest timestamp of the required period based on the type
+        switch (type) {
+            case "day":
+                endTimestamp = key - 86400 * (num - 1);
+                break;
+            case "hour":
+                endTimestamp = key - 3600 * (num - 1);
+                break;
+            case "minute":
+                endTimestamp = key - 60 * (num - 1);
+                break;
+            default:
+                throw new Error("Invalid type");
+        }
+
+        // Sum up all data in the specified time range
+        while (key >= endTimestamp) {
+            let data;
+
+            switch (type) {
+                case "day":
+                    data = this.dailyUptimeDataList[key];
+                    break;
+                case "hour":
+                    data = this.hourlyUptimeDataList[key];
+                    break;
+                case "minute":
+                    data = this.minutelyUptimeDataList[key];
+                    break;
+                default:
+                    throw new Error("Invalid type");
+            }
+
+            if (data) {
+                total.up += data.up;
+                total.down += data.down;
+                totalPing += data.avgPing * data.up;
+            }
+
+            // Set key to the previous time period
+            switch (type) {
+                case "day":
+                    key -= 86400;
+                    break;
+                case "hour":
+                    key -= 3600;
+                    break;
+                case "minute":
+                    key -= 60;
+                    break;
+                default:
+                    throw new Error("Invalid type");
+            }
+        }
+
+        let uptimeData = new UptimeDataResult();
+
+        // If there is no data in the previous time ranges, use the last data?
+        if (total.up === 0 && total.down === 0) {
+            switch (type) {
+                case "day":
+                    if (this.lastDailyUptimeData) {
+                        total = this.lastDailyUptimeData;
+                        totalPing = total.avgPing * total.up;
+                    } else {
+                        return uptimeData;
+                    }
+                    break;
+                case "hour":
+                    if (this.lastHourlyUptimeData) {
+                        total = this.lastHourlyUptimeData;
+                        totalPing = total.avgPing * total.up;
+                    } else {
+                        return uptimeData;
+                    }
+                    break;
+                case "minute":
+                    if (this.lastUptimeData) {
+                        total = this.lastUptimeData;
+                        totalPing = total.avgPing * total.up;
+                    } else {
+                        return uptimeData;
+                    }
+                    break;
+                default:
+                    throw new Error("Invalid type");
+            }
+        }
+
+        let avgPing;
+
+        if (total.up === 0) {
+            avgPing = null;
+        } else {
+            avgPing = totalPing / total.up;
+        }
+
+        if (total.up + total.down === 0) {
+            uptimeData.uptime = 0;
+        } else {
+            uptimeData.uptime = total.up / (total.up + total.down);
+        }
+        uptimeData.avgPing = avgPing;
+        return uptimeData;
+    }
+
+    /**
+     * Get data in form of an array
+     * @param {number} num the number of data points which are expected to be returned
+     * @param {"day" | "hour" | "minute"} type the type of data which is expected to be returned
+     * @returns {Array<object>} uptime data
+     * @throws {Error} The maximum number of minutes greater than 1440
+     */
+    getDataArray(num, type = "day") {
+        if (type === "hour" && num > 24 * 30) {
+            throw new Error("The maximum number of hours is 720");
+        }
+        if (type === "minute" && num > 24 * 60) {
+            throw new Error("The maximum number of minutes is 1440");
+        }
+
+        // Get the current time period key based on the type
+        let key = this.getKey(this.getCurrentDate(), type);
+
+        let result = [];
+
+        let endTimestamp;
+
+        // Get the eariest timestamp of the required period based on the type
+        switch (type) {
+            case "day":
+                endTimestamp = key - 86400 * (num - 1);
+                break;
+            case "hour":
+                endTimestamp = key - 3600 * (num - 1);
+                break;
+            case "minute":
+                endTimestamp = key - 60 * (num - 1);
+                break;
+            default:
+                throw new Error("Invalid type");
+        }
+
+        // Get datapoints in the specified time range
+        while (key >= endTimestamp) {
+            let data;
+
+            switch (type) {
+                case "day":
+                    data = this.dailyUptimeDataList[key];
+                    break;
+                case "hour":
+                    data = this.hourlyUptimeDataList[key];
+                    break;
+                case "minute":
+                    data = this.minutelyUptimeDataList[key];
+                    break;
+                default:
+                    throw new Error("Invalid type");
+            }
+
+            if (data) {
+                data.timestamp = key;
+                result.push(data);
+            }
+
+            // Set key to the previous time period
+            switch (type) {
+                case "day":
+                    key -= 86400;
+                    break;
+                case "hour":
+                    key -= 3600;
+                    break;
+                case "minute":
+                    key -= 60;
+                    break;
+                default:
+                    throw new Error("Invalid type");
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * Get the uptime data for given duration.
+     * @param {string} duration  A string with a number and a unit (m,h,d,w,M,y), such as 24h, 30d, 1y.
+     * @returns {UptimeDataResult} UptimeDataResult
+     * @throws {Error} Invalid duration / Unsupported unit
+     */
+    getDataByDuration(duration) {
+        const durationNumStr = duration.slice(0, -1);
+
+        if (!/^[0-9]+$/.test(durationNumStr)) {
+            throw new Error(`Invalid duration: ${duration}`);
+        }
+        const num = Number(durationNumStr);
+        const unit = duration.slice(-1);
+
+        switch (unit) {
+            case "m":
+                return this.getData(num, "minute");
+            case "h":
+                return this.getData(num, "hour");
+            case "d":
+                return this.getData(num, "day");
+            case "w":
+                return this.getData(7 * num, "day");
+            case "M":
+                return this.getData(30 * num, "day");
+            case "y":
+                return this.getData(365 * num, "day");
+            default:
+                throw new Error(`Unsupported unit (${unit}) for badge duration ${duration}`
+                );
+        }
+    }
+
+    /**
+     * 1440 = 24 * 60mins
+     * @returns {UptimeDataResult} UptimeDataResult
+     */
+    get24Hour() {
+        return this.getData(1440, "minute");
+    }
+
+    /**
+     * @returns {UptimeDataResult} UptimeDataResult
+     */
+    get7Day() {
+        return this.getData(168, "hour");
+    }
+
+    /**
+     * @returns {UptimeDataResult} UptimeDataResult
+     */
+    get30Day() {
+        return this.getData(30);
+    }
+
+    /**
+     * @returns {UptimeDataResult} UptimeDataResult
+     */
+    get1Year() {
+        return this.getData(365);
+    }
+
+    /**
+     * @returns {dayjs.Dayjs} Current datetime in UTC
+     */
+    getCurrentDate() {
+        return dayjs.utc();
+    }
+
+    /**
+     * For migration purposes.
+     * @param {boolean} value Migration mode on/off
+     * @returns {void}
+     */
+    setMigrationMode(value) {
+        this.migrationMode = value;
+    }
+}
+
+class UptimeDataResult {
+    /**
+     * @type {number} Uptime
+     */
+    uptime = 0;
+
+    /**
+     * @type {number} Average ping
+     */
+    avgPing = null;
+}
+
+module.exports = {
+    UptimeCalculator,
+    UptimeDataResult,
+};
diff --git a/server/uptime-kuma-server.js b/server/uptime-kuma-server.js
new file mode 100644
index 0000000..062f098
--- /dev/null
+++ b/server/uptime-kuma-server.js
@@ -0,0 +1,557 @@
+const express = require("express");
+const https = require("https");
+const fs = require("fs");
+const http = require("http");
+const { Server } = require("socket.io");
+const { R } = require("redbean-node");
+const { log, isDev } = require("../src/util");
+const Database = require("./database");
+const util = require("util");
+const { Settings } = require("./settings");
+const dayjs = require("dayjs");
+const childProcessAsync = require("promisify-child-process");
+const path = require("path");
+const axios = require("axios");
+const { isSSL, sslKey, sslCert, sslKeyPassphrase } = require("./config");
+// DO NOT IMPORT HERE IF THE MODULES USED `UptimeKumaServer.getInstance()`, put at the bottom of this file instead.
+
+/**
+ * `module.exports` (alias: `server`) should be inside this class, in order to avoid circular dependency issue.
+ * @type {UptimeKumaServer}
+ */
+class UptimeKumaServer {
+    /**
+     * Current server instance
+     * @type {UptimeKumaServer}
+     */
+    static instance = null;
+
+    /**
+     * Main monitor list
+     * @type {{}}
+     */
+    monitorList = {};
+
+    /**
+     * Main maintenance list
+     * @type {{}}
+     */
+    maintenanceList = {};
+
+    entryPage = "dashboard";
+    app = undefined;
+    httpServer = undefined;
+    io = undefined;
+
+    /**
+     * Cache Index HTML
+     * @type {string}
+     */
+    indexHTML = "";
+
+    /**
+     * @type {{}}
+     */
+    static monitorTypeList = {
+
+    };
+
+    /**
+     * Use for decode the auth object
+     * @type {null}
+     */
+    jwtSecret = null;
+
+    /**
+     * Get the current instance of the server if it exists, otherwise
+     * create a new instance.
+     * @returns {UptimeKumaServer} Server instance
+     */
+    static getInstance() {
+        if (UptimeKumaServer.instance == null) {
+            UptimeKumaServer.instance = new UptimeKumaServer();
+        }
+        return UptimeKumaServer.instance;
+    }
+
+    /**
+     *
+     */
+    constructor() {
+        // Set axios default user-agent to Uptime-Kuma/version
+        axios.defaults.headers.common["User-Agent"] = this.getUserAgent();
+
+        // Set default axios timeout to 5 minutes instead of infinity
+        axios.defaults.timeout = 300 * 1000;
+
+        log.info("server", "Creating express and socket.io instance");
+        this.app = express();
+        if (isSSL) {
+            log.info("server", "Server Type: HTTPS");
+            this.httpServer = https.createServer({
+                key: fs.readFileSync(sslKey),
+                cert: fs.readFileSync(sslCert),
+                passphrase: sslKeyPassphrase,
+            }, this.app);
+        } else {
+            log.info("server", "Server Type: HTTP");
+            this.httpServer = http.createServer(this.app);
+        }
+
+        try {
+            this.indexHTML = fs.readFileSync("./dist/index.html").toString();
+        } catch (e) {
+            // "dist/index.html" is not necessary for development
+            if (process.env.NODE_ENV !== "development") {
+                log.error("server", "Error: Cannot find 'dist/index.html', did you install correctly?");
+                process.exit(1);
+            }
+        }
+
+        // Set Monitor Types
+        UptimeKumaServer.monitorTypeList["real-browser"] = new RealBrowserMonitorType();
+        UptimeKumaServer.monitorTypeList["tailscale-ping"] = new TailscalePing();
+        UptimeKumaServer.monitorTypeList["dns"] = new DnsMonitorType();
+        UptimeKumaServer.monitorTypeList["mqtt"] = new MqttMonitorType();
+        UptimeKumaServer.monitorTypeList["snmp"] = new SNMPMonitorType();
+        UptimeKumaServer.monitorTypeList["mongodb"] = new MongodbMonitorType();
+        UptimeKumaServer.monitorTypeList["rabbitmq"] = new RabbitMqMonitorType();
+
+        // Allow all CORS origins (polling) in development
+        let cors = undefined;
+        if (isDev) {
+            cors = {
+                origin: "*",
+            };
+        }
+
+        this.io = new Server(this.httpServer, {
+            cors,
+            allowRequest: async (req, callback) => {
+                let transport;
+                // It should be always true, but just in case, because this property is not documented
+                if (req._query) {
+                    transport = req._query.transport;
+                } else {
+                    log.error("socket", "Ops!!! Cannot get transport type, assume that it is polling");
+                    transport = "polling";
+                }
+
+                const clientIP = await this.getClientIPwithProxy(req.connection.remoteAddress, req.headers);
+                log.info("socket", `New ${transport} connection, IP = ${clientIP}`);
+
+                // The following check is only for websocket connections, polling connections are already protected by CORS
+                if (transport === "polling") {
+                    callback(null, true);
+                } else if (transport === "websocket") {
+                    const bypass = process.env.UPTIME_KUMA_WS_ORIGIN_CHECK === "bypass";
+                    if (bypass) {
+                        log.info("auth", "WebSocket origin check is bypassed");
+                        callback(null, true);
+                    } else if (!req.headers.origin) {
+                        log.info("auth", "WebSocket with no origin is allowed");
+                        callback(null, true);
+                    } else {
+                        let host = req.headers.host;
+                        let origin = req.headers.origin;
+
+                        try {
+                            let originURL = new URL(origin);
+                            let xForwardedFor;
+                            if (await Settings.get("trustProxy")) {
+                                xForwardedFor = req.headers["x-forwarded-for"];
+                            }
+
+                            if (host !== originURL.host && xForwardedFor !== originURL.host) {
+                                callback(null, false);
+                                log.error("auth", `Origin (${origin}) does not match host (${host}), IP: ${clientIP}`);
+                            } else {
+                                callback(null, true);
+                            }
+                        } catch (e) {
+                            // Invalid origin url, probably not from browser
+                            callback(null, false);
+                            log.error("auth", `Invalid origin url (${origin}), IP: ${clientIP}`);
+                        }
+                    }
+                }
+            }
+        });
+    }
+
+    /**
+     * Initialise app after the database has been set up
+     * @returns {Promise<void>}
+     */
+    async initAfterDatabaseReady() {
+        // Static
+        this.app.use("/screenshots", express.static(Database.screenshotDir));
+
+        process.env.TZ = await this.getTimezone();
+        dayjs.tz.setDefault(process.env.TZ);
+        log.debug("DEBUG", "Timezone: " + process.env.TZ);
+        log.debug("DEBUG", "Current Time: " + dayjs.tz().format());
+
+        await this.loadMaintenanceList();
+    }
+
+    /**
+     * Send list of monitors to client
+     * @param {Socket} socket Socket to send list on
+     * @returns {Promise<object>} List of monitors
+     */
+    async sendMonitorList(socket) {
+        let list = await this.getMonitorJSONList(socket.userID);
+        this.io.to(socket.userID).emit("monitorList", list);
+        return list;
+    }
+
+    /**
+     * Update Monitor into list
+     * @param {Socket} socket Socket to send list on
+     * @param {number} monitorID update or deleted monitor id
+     * @returns {Promise<void>}
+     */
+    async sendUpdateMonitorIntoList(socket, monitorID) {
+        let list = await this.getMonitorJSONList(socket.userID, monitorID);
+        this.io.to(socket.userID).emit("updateMonitorIntoList", list);
+    }
+
+    /**
+     * Delete Monitor from list
+     * @param {Socket} socket Socket to send list on
+     * @param {number} monitorID update or deleted monitor id
+     * @returns {Promise<void>}
+     */
+    async sendDeleteMonitorFromList(socket, monitorID) {
+        this.io.to(socket.userID).emit("deleteMonitorFromList", monitorID);
+    }
+
+    /**
+     * Get a list of monitors for the given user.
+     * @param {string} userID - The ID of the user to get monitors for.
+     * @param {number} monitorID - The ID of monitor for.
+     * @returns {Promise<object>} A promise that resolves to an object with monitor IDs as keys and monitor objects as values.
+     *
+     * Generated by Trelent
+     */
+    async getMonitorJSONList(userID, monitorID = null) {
+
+        let query = " user_id = ? ";
+        let queryParams = [ userID ];
+
+        if (monitorID) {
+            query += "AND id = ? ";
+            queryParams.push(monitorID);
+        }
+
+        let monitorList = await R.find("monitor", query + "ORDER BY weight DESC, name", queryParams);
+
+        const monitorData = monitorList.map(monitor => ({
+            id: monitor.id,
+            active: monitor.active,
+            name: monitor.name,
+        }));
+        const preloadData = await Monitor.preparePreloadData(monitorData);
+
+        const result = {};
+        monitorList.forEach(monitor => result[monitor.id] = monitor.toJSON(preloadData));
+        return result;
+    }
+
+    /**
+     * Send maintenance list to client
+     * @param {Socket} socket Socket.io instance to send to
+     * @returns {Promise<object>} Maintenance list
+     */
+    async sendMaintenanceList(socket) {
+        return await this.sendMaintenanceListByUserID(socket.userID);
+    }
+
+    /**
+     * Send list of maintenances to user
+     * @param {number} userID User to send list to
+     * @returns {Promise<object>} Maintenance list
+     */
+    async sendMaintenanceListByUserID(userID) {
+        let list = await this.getMaintenanceJSONList(userID);
+        this.io.to(userID).emit("maintenanceList", list);
+        return list;
+    }
+
+    /**
+     * Get a list of maintenances for the given user.
+     * @param {string} userID - The ID of the user to get maintenances for.
+     * @returns {Promise<object>} A promise that resolves to an object with maintenance IDs as keys and maintenances objects as values.
+     */
+    async getMaintenanceJSONList(userID) {
+        let result = {};
+        for (let maintenanceID in this.maintenanceList) {
+            result[maintenanceID] = await this.maintenanceList[maintenanceID].toJSON();
+        }
+        return result;
+    }
+
+    /**
+     * Load maintenance list and run
+     * @param {any} userID Unused
+     * @returns {Promise<void>}
+     */
+    async loadMaintenanceList(userID) {
+        let maintenanceList = await R.findAll("maintenance", " ORDER BY end_date DESC, title", [
+
+        ]);
+
+        for (let maintenance of maintenanceList) {
+            this.maintenanceList[maintenance.id] = maintenance;
+            maintenance.run(this);
+        }
+    }
+
+    /**
+     * Retrieve a specific maintenance
+     * @param {number} maintenanceID ID of maintenance to retrieve
+     * @returns {(object|null)} Maintenance if it exists
+     */
+    getMaintenance(maintenanceID) {
+        if (this.maintenanceList[maintenanceID]) {
+            return this.maintenanceList[maintenanceID];
+        }
+        return null;
+    }
+
+    /**
+     * Write error to log file
+     * @param {any} error The error to write
+     * @param {boolean} outputToConsole Should the error also be output to console?
+     * @returns {void}
+     */
+    static errorLog(error, outputToConsole = true) {
+        const errorLogStream = fs.createWriteStream(path.join(Database.dataDir, "/error.log"), {
+            flags: "a"
+        });
+
+        errorLogStream.on("error", () => {
+            log.info("", "Cannot write to error.log");
+        });
+
+        if (errorLogStream) {
+            const dateTime = R.isoDateTime();
+            errorLogStream.write(`[${dateTime}] ` + util.format(error) + "\n");
+
+            if (outputToConsole) {
+                console.error(error);
+            }
+        }
+
+        errorLogStream.end();
+    }
+
+    /**
+     * Get the IP of the client connected to the socket
+     * @param {Socket} socket Socket to query
+     * @returns {Promise<string>} IP of client
+     */
+    getClientIP(socket) {
+        return this.getClientIPwithProxy(socket.client.conn.remoteAddress, socket.client.conn.request.headers);
+    }
+
+    /**
+     * @param {string} clientIP Raw client IP
+     * @param {IncomingHttpHeaders} headers HTTP headers
+     * @returns {Promise<string>} Client IP with proxy (if trusted)
+     */
+    async getClientIPwithProxy(clientIP, headers) {
+        if (clientIP === undefined) {
+            clientIP = "";
+        }
+
+        if (await Settings.get("trustProxy")) {
+            const forwardedFor = headers["x-forwarded-for"];
+
+            return (typeof forwardedFor === "string" ? forwardedFor.split(",")[0].trim() : null)
+                || headers["x-real-ip"]
+                || clientIP.replace(/^::ffff:/, "");
+        } else {
+            return clientIP.replace(/^::ffff:/, "");
+        }
+    }
+
+    /**
+     * Attempt to get the current server timezone
+     * If this fails, fall back to environment variables and then make a
+     * guess.
+     * @returns {Promise<string>} Current timezone
+     */
+    async getTimezone() {
+        // From process.env.TZ
+        try {
+            if (process.env.TZ) {
+                this.checkTimezone(process.env.TZ);
+                return process.env.TZ;
+            }
+        } catch (e) {
+            log.warn("timezone", e.message + " in process.env.TZ");
+        }
+
+        let timezone = await Settings.get("serverTimezone");
+
+        // From Settings
+        try {
+            log.debug("timezone", "Using timezone from settings: " + timezone);
+            if (timezone) {
+                this.checkTimezone(timezone);
+                return timezone;
+            }
+        } catch (e) {
+            log.warn("timezone", e.message + " in settings");
+        }
+
+        // Guess
+        try {
+            let guess = dayjs.tz.guess();
+            log.debug("timezone", "Guessing timezone: " + guess);
+            if (guess) {
+                this.checkTimezone(guess);
+                return guess;
+            } else {
+                return "UTC";
+            }
+        } catch (e) {
+            // Guess failed, fall back to UTC
+            log.debug("timezone", "Guessed an invalid timezone. Use UTC as fallback");
+            return "UTC";
+        }
+    }
+
+    /**
+     * Get the current offset
+     * @returns {string} Time offset
+     */
+    getTimezoneOffset() {
+        return dayjs().format("Z");
+    }
+
+    /**
+     * Throw an error if the timezone is invalid
+     * @param {string} timezone Timezone to test
+     * @returns {void}
+     * @throws The timezone is invalid
+     */
+    checkTimezone(timezone) {
+        try {
+            dayjs.utc("2013-11-18 11:55").tz(timezone).format();
+        } catch (e) {
+            throw new Error("Invalid timezone:" + timezone);
+        }
+    }
+
+    /**
+     * Set the current server timezone and environment variables
+     * @param {string} timezone Timezone to set
+     * @returns {Promise<void>}
+     */
+    async setTimezone(timezone) {
+        this.checkTimezone(timezone);
+        await Settings.set("serverTimezone", timezone, "general");
+        process.env.TZ = timezone;
+        dayjs.tz.setDefault(timezone);
+    }
+
+    /**
+     * TODO: Listen logic should be moved to here
+     * @returns {Promise<void>}
+     */
+    async start() {
+        let enable = await Settings.get("nscd");
+
+        if (enable || enable === null) {
+            await this.startNSCDServices();
+        }
+    }
+
+    /**
+     * Stop the server
+     * @returns {Promise<void>}
+     */
+    async stop() {
+        let enable = await Settings.get("nscd");
+
+        if (enable || enable === null) {
+            await this.stopNSCDServices();
+        }
+    }
+
+    /**
+     * Start all system services (e.g. nscd)
+     * For now, only used in Docker
+     * @returns {void}
+     */
+    async startNSCDServices() {
+        if (process.env.UPTIME_KUMA_IS_CONTAINER) {
+            try {
+                log.info("services", "Starting nscd");
+                await childProcessAsync.exec("sudo service nscd start");
+            } catch (e) {
+                log.info("services", "Failed to start nscd");
+            }
+        }
+    }
+
+    /**
+     * Stop all system services
+     * @returns {void}
+     */
+    async stopNSCDServices() {
+        if (process.env.UPTIME_KUMA_IS_CONTAINER) {
+            try {
+                log.info("services", "Stopping nscd");
+                await childProcessAsync.exec("sudo service nscd stop");
+            } catch (e) {
+                log.info("services", "Failed to stop nscd");
+            }
+        }
+    }
+
+    /**
+     * Default User-Agent when making HTTP requests
+     * @returns {string} User-Agent
+     */
+    getUserAgent() {
+        return "Uptime-Kuma/" + require("../package.json").version;
+    }
+
+    /**
+     * Force connected sockets of a user to refresh and disconnect.
+     * Used for resetting password.
+     * @param {string} userID User ID
+     * @param {string?} currentSocketID Current socket ID
+     * @returns {void}
+     */
+    disconnectAllSocketClients(userID, currentSocketID = undefined) {
+        for (const socket of this.io.sockets.sockets.values()) {
+            if (socket.userID === userID && socket.id !== currentSocketID) {
+                try {
+                    socket.emit("refresh");
+                    socket.disconnect();
+                } catch (e) {
+
+                }
+            }
+        }
+    }
+}
+
+module.exports = {
+    UptimeKumaServer
+};
+
+// Must be at the end to avoid circular dependencies
+const { RealBrowserMonitorType } = require("./monitor-types/real-browser-monitor-type");
+const { TailscalePing } = require("./monitor-types/tailscale-ping");
+const { DnsMonitorType } = require("./monitor-types/dns");
+const { MqttMonitorType } = require("./monitor-types/mqtt");
+const { SNMPMonitorType } = require("./monitor-types/snmp");
+const { MongodbMonitorType } = require("./monitor-types/mongodb");
+const { RabbitMqMonitorType } = require("./monitor-types/rabbitmq");
+const Monitor = require("./model/monitor");
diff --git a/server/util-server.js b/server/util-server.js
new file mode 100644
index 0000000..5ebc62a
--- /dev/null
+++ b/server/util-server.js
@@ -0,0 +1,1064 @@
+const tcpp = require("tcp-ping");
+const ping = require("@louislam/ping");
+const { R } = require("redbean-node");
+const { log, genSecret, badgeConstants } = require("../src/util");
+const passwordHash = require("./password-hash");
+const { Resolver } = require("dns");
+const iconv = require("iconv-lite");
+const chardet = require("chardet");
+const chroma = require("chroma-js");
+const mssql = require("mssql");
+const { Client } = require("pg");
+const postgresConParse = require("pg-connection-string").parse;
+const mysql = require("mysql2");
+const { NtlmClient } = require("./modules/axios-ntlm/lib/ntlmClient.js");
+const { Settings } = require("./settings");
+const grpc = require("@grpc/grpc-js");
+const protojs = require("protobufjs");
+const radiusClient = require("node-radius-client");
+const redis = require("redis");
+const oidc = require("openid-client");
+const tls = require("tls");
+
+const {
+    dictionaries: {
+        rfc2865: { file, attributes },
+    },
+} = require("node-radius-utils");
+const dayjs = require("dayjs");
+
+// SASLOptions used in JSDoc
+// eslint-disable-next-line no-unused-vars
+const { Kafka, SASLOptions } = require("kafkajs");
+const crypto = require("crypto");
+
+const isWindows = process.platform === /^win/.test(process.platform);
+/**
+ * Init or reset JWT secret
+ * @returns {Promise<Bean>} JWT secret
+ */
+exports.initJWTSecret = async () => {
+    let jwtSecretBean = await R.findOne("setting", " `key` = ? ", [
+        "jwtSecret",
+    ]);
+
+    if (!jwtSecretBean) {
+        jwtSecretBean = R.dispense("setting");
+        jwtSecretBean.key = "jwtSecret";
+    }
+
+    jwtSecretBean.value = passwordHash.generate(genSecret());
+    await R.store(jwtSecretBean);
+    return jwtSecretBean;
+};
+
+/**
+ * Decodes a jwt and returns the payload portion without verifying the jqt.
+ * @param {string} jwt The input jwt as a string
+ * @returns {object} Decoded jwt payload object
+ */
+exports.decodeJwt = (jwt) => {
+    return JSON.parse(Buffer.from(jwt.split(".")[1], "base64").toString());
+};
+
+/**
+ * Gets a Access Token form a oidc/oauth2 provider
+ * @param {string} tokenEndpoint The token URI form the auth service provider
+ * @param {string} clientId The oidc/oauth application client id
+ * @param {string} clientSecret The oidc/oauth application client secret
+ * @param {string} scope The scope the for which the token should be issued for
+ * @param {string} authMethod The method on how to sent the credentials. Default client_secret_basic
+ * @returns {Promise<oidc.TokenSet>} TokenSet promise if the token request was successful
+ */
+exports.getOidcTokenClientCredentials = async (tokenEndpoint, clientId, clientSecret, scope, authMethod = "client_secret_basic") => {
+    const oauthProvider = new oidc.Issuer({ token_endpoint: tokenEndpoint });
+    let client = new oauthProvider.Client({
+        client_id: clientId,
+        client_secret: clientSecret,
+        token_endpoint_auth_method: authMethod
+    });
+
+    // Increase default timeout and clock tolerance
+    client[oidc.custom.http_options] = () => ({ timeout: 10000 });
+    client[oidc.custom.clock_tolerance] = 5;
+
+    let grantParams = { grant_type: "client_credentials" };
+    if (scope) {
+        grantParams.scope = scope;
+    }
+    return await client.grant(grantParams);
+};
+
+/**
+ * Send TCP request to specified hostname and port
+ * @param {string} hostname Hostname / address of machine
+ * @param {number} port TCP port to test
+ * @returns {Promise<number>} Maximum time in ms rounded to nearest integer
+ */
+exports.tcping = function (hostname, port) {
+    return new Promise((resolve, reject) => {
+        tcpp.ping({
+            address: hostname,
+            port: port,
+            attempts: 1,
+        }, function (err, data) {
+
+            if (err) {
+                reject(err);
+            }
+
+            if (data.results.length >= 1 && data.results[0].err) {
+                reject(data.results[0].err);
+            }
+
+            resolve(Math.round(data.max));
+        });
+    });
+};
+
+/**
+ * Ping the specified machine
+ * @param {string} hostname Hostname / address of machine
+ * @param {number} size Size of packet to send
+ * @returns {Promise<number>} Time for ping in ms rounded to nearest integer
+ */
+exports.ping = async (hostname, size = 56) => {
+    try {
+        return await exports.pingAsync(hostname, false, size);
+    } catch (e) {
+        // If the host cannot be resolved, try again with ipv6
+        log.debug("ping", "IPv6 error message: " + e.message);
+
+        // As node-ping does not report a specific error for this, try again if it is an empty message with ipv6 no matter what.
+        if (!e.message) {
+            return await exports.pingAsync(hostname, true, size);
+        } else {
+            throw e;
+        }
+    }
+};
+
+/**
+ * Ping the specified machine
+ * @param {string} hostname Hostname / address of machine to ping
+ * @param {boolean} ipv6 Should IPv6 be used?
+ * @param {number} size Size of ping packet to send
+ * @returns {Promise<number>} Time for ping in ms rounded to nearest integer
+ */
+exports.pingAsync = function (hostname, ipv6 = false, size = 56) {
+    return new Promise((resolve, reject) => {
+        ping.promise.probe(hostname, {
+            v6: ipv6,
+            min_reply: 1,
+            deadline: 10,
+            packetSize: size,
+        }).then((res) => {
+            // If ping failed, it will set field to unknown
+            if (res.alive) {
+                resolve(res.time);
+            } else {
+                if (isWindows) {
+                    reject(new Error(exports.convertToUTF8(res.output)));
+                } else {
+                    reject(new Error(res.output));
+                }
+            }
+        }).catch((err) => {
+            reject(err);
+        });
+    });
+};
+
+/**
+ * Monitor Kafka using Producer
+ * @param {string[]} brokers List of kafka brokers to connect, host and
+ * port joined by ':'
+ * @param {string} topic Topic name to produce into
+ * @param {string} message Message to produce
+ * @param {object} options Kafka client options. Contains ssl, clientId,
+ * allowAutoTopicCreation and interval (interval defaults to 20,
+ * allowAutoTopicCreation defaults to false, clientId defaults to
+ * "Uptime-Kuma" and ssl defaults to false)
+ * @param {SASLOptions} saslOptions Options for kafka client
+ * Authentication (SASL) (defaults to {})
+ * @returns {Promise<string>} Status message
+ */
+exports.kafkaProducerAsync = function (brokers, topic, message, options = {}, saslOptions = {}) {
+    return new Promise((resolve, reject) => {
+        const { interval = 20, allowAutoTopicCreation = false, ssl = false, clientId = "Uptime-Kuma" } = options;
+
+        let connectedToKafka = false;
+
+        const timeoutID = setTimeout(() => {
+            log.debug("kafkaProducer", "KafkaProducer timeout triggered");
+            connectedToKafka = true;
+            reject(new Error("Timeout"));
+        }, interval * 1000 * 0.8);
+
+        if (saslOptions.mechanism === "None") {
+            saslOptions = undefined;
+        }
+
+        let client = new Kafka({
+            brokers: brokers,
+            clientId: clientId,
+            sasl: saslOptions,
+            retry: {
+                retries: 0,
+            },
+            ssl: ssl,
+        });
+
+        let producer = client.producer({
+            allowAutoTopicCreation: allowAutoTopicCreation,
+            retry: {
+                retries: 0,
+            }
+        });
+
+        producer.connect().then(
+            () => {
+                producer.send({
+                    topic: topic,
+                    messages: [{
+                        value: message,
+                    }],
+                }).then((_) => {
+                    resolve("Message sent successfully");
+                }).catch((e) => {
+                    connectedToKafka = true;
+                    producer.disconnect();
+                    clearTimeout(timeoutID);
+                    reject(new Error("Error sending message: " + e.message));
+                }).finally(() => {
+                    connectedToKafka = true;
+                    clearTimeout(timeoutID);
+                });
+            }
+        ).catch(
+            (e) => {
+                connectedToKafka = true;
+                producer.disconnect();
+                clearTimeout(timeoutID);
+                reject(new Error("Error in producer connection: " + e.message));
+            }
+        );
+
+        producer.on("producer.network.request_timeout", (_) => {
+            if (!connectedToKafka) {
+                clearTimeout(timeoutID);
+                reject(new Error("producer.network.request_timeout"));
+            }
+        });
+
+        producer.on("producer.disconnect", (_) => {
+            if (!connectedToKafka) {
+                clearTimeout(timeoutID);
+                reject(new Error("producer.disconnect"));
+            }
+        });
+    });
+};
+
+/**
+ * Use NTLM Auth for a http request.
+ * @param {object} options The http request options
+ * @param {object} ntlmOptions The auth options
+ * @returns {Promise<(string[] | object[] | object)>} NTLM response
+ */
+exports.httpNtlm = function (options, ntlmOptions) {
+    return new Promise((resolve, reject) => {
+        let client = NtlmClient(ntlmOptions);
+
+        client(options)
+            .then((resp) => {
+                resolve(resp);
+            })
+            .catch((err) => {
+                reject(err);
+            });
+    });
+};
+
+/**
+ * Resolves a given record using the specified DNS server
+ * @param {string} hostname The hostname of the record to lookup
+ * @param {string} resolverServer The DNS server to use
+ * @param {string} resolverPort Port the DNS server is listening on
+ * @param {string} rrtype The type of record to request
+ * @returns {Promise<(string[] | object[] | object)>} DNS response
+ */
+exports.dnsResolve = function (hostname, resolverServer, resolverPort, rrtype) {
+    const resolver = new Resolver();
+    // Remove brackets from IPv6 addresses so we can re-add them to
+    // prevent issues with ::1:5300 (::1 port 5300)
+    resolverServer = resolverServer.replace("[", "").replace("]", "");
+    resolver.setServers([ `[${resolverServer}]:${resolverPort}` ]);
+    return new Promise((resolve, reject) => {
+        if (rrtype === "PTR") {
+            resolver.reverse(hostname, (err, records) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(records);
+                }
+            });
+        } else {
+            resolver.resolve(hostname, rrtype, (err, records) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(records);
+                }
+            });
+        }
+    });
+};
+
+/**
+ * Run a query on SQL Server
+ * @param {string} connectionString The database connection string
+ * @param {string} query The query to validate the database with
+ * @returns {Promise<(string[] | object[] | object)>} Response from
+ * server
+ */
+exports.mssqlQuery = async function (connectionString, query) {
+    let pool;
+    try {
+        pool = new mssql.ConnectionPool(connectionString);
+        await pool.connect();
+        if (!query) {
+            query = "SELECT 1";
+        }
+        await pool.request().query(query);
+        pool.close();
+    } catch (e) {
+        if (pool) {
+            pool.close();
+        }
+        throw e;
+    }
+};
+
+/**
+ * Run a query on Postgres
+ * @param {string} connectionString The database connection string
+ * @param {string} query The query to validate the database with
+ * @returns {Promise<(string[] | object[] | object)>} Response from
+ * server
+ */
+exports.postgresQuery = function (connectionString, query) {
+    return new Promise((resolve, reject) => {
+        const config = postgresConParse(connectionString);
+
+        // Fix #3868, which true/false is not parsed to boolean
+        if (typeof config.ssl === "string") {
+            config.ssl = config.ssl === "true";
+        }
+
+        if (config.password === "") {
+            // See https://github.com/brianc/node-postgres/issues/1927
+            reject(new Error("Password is undefined."));
+            return;
+        }
+        const client = new Client(config);
+
+        client.on("error", (error) => {
+            log.debug("postgres", "Error caught in the error event handler.");
+            reject(error);
+        });
+
+        client.connect((err) => {
+            if (err) {
+                reject(err);
+                client.end();
+            } else {
+                // Connected here
+                try {
+                    // No query provided by user, use SELECT 1
+                    if (!query || (typeof query === "string" && query.trim() === "")) {
+                        query = "SELECT 1";
+                    }
+
+                    client.query(query, (err, res) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(res);
+                        }
+                        client.end();
+                    });
+                } catch (e) {
+                    reject(e);
+                    client.end();
+                }
+            }
+        });
+
+    });
+};
+
+/**
+ * Run a query on MySQL/MariaDB
+ * @param {string} connectionString The database connection string
+ * @param {string} query The query to validate the database with
+ * @param {?string} password The password to use
+ * @returns {Promise<(string)>} Response from server
+ */
+exports.mysqlQuery = function (connectionString, query, password = undefined) {
+    return new Promise((resolve, reject) => {
+        const connection = mysql.createConnection({
+            uri: connectionString,
+            password
+        });
+
+        connection.on("error", (err) => {
+            reject(err);
+        });
+
+        connection.query(query, (err, res) => {
+            if (err) {
+                reject(err);
+            } else {
+                if (Array.isArray(res)) {
+                    resolve("Rows: " + res.length);
+                } else {
+                    resolve("No Error, but the result is not an array. Type: " + typeof res);
+                }
+            }
+
+            try {
+                connection.end();
+            } catch (_) {
+                connection.destroy();
+            }
+        });
+    });
+};
+
+/**
+ * Query radius server
+ * @param {string} hostname Hostname of radius server
+ * @param {string} username Username to use
+ * @param {string} password Password to use
+ * @param {string} calledStationId ID of called station
+ * @param {string} callingStationId ID of calling station
+ * @param {string} secret Secret to use
+ * @param {number} port Port to contact radius server on
+ * @param {number} timeout Timeout for connection to use
+ * @returns {Promise<any>} Response from server
+ */
+exports.radius = function (
+    hostname,
+    username,
+    password,
+    calledStationId,
+    callingStationId,
+    secret,
+    port = 1812,
+    timeout = 2500,
+) {
+    const client = new radiusClient({
+        host: hostname,
+        hostPort: port,
+        timeout: timeout,
+        retries: 1,
+        dictionaries: [ file ],
+    });
+
+    return client.accessRequest({
+        secret: secret,
+        attributes: [
+            [ attributes.USER_NAME, username ],
+            [ attributes.USER_PASSWORD, password ],
+            [ attributes.CALLING_STATION_ID, callingStationId ],
+            [ attributes.CALLED_STATION_ID, calledStationId ],
+        ],
+    }).catch((error) => {
+        if (error.response?.code) {
+            throw Error(error.response.code);
+        } else {
+            throw Error(error.message);
+        }
+    });
+};
+
+/**
+ * Redis server ping
+ * @param {string} dsn The redis connection string
+ * @param {boolean} rejectUnauthorized If false, allows unverified server certificates.
+ * @returns {Promise<any>} Response from server
+ */
+exports.redisPingAsync = function (dsn, rejectUnauthorized) {
+    return new Promise((resolve, reject) => {
+        const client = redis.createClient({
+            url: dsn,
+            socket: {
+                rejectUnauthorized
+            }
+        });
+        client.on("error", (err) => {
+            if (client.isOpen) {
+                client.disconnect();
+            }
+            reject(err);
+        });
+        client.connect().then(() => {
+            if (!client.isOpen) {
+                client.emit("error", new Error("connection isn't open"));
+            }
+            client.ping().then((res, err) => {
+                if (client.isOpen) {
+                    client.disconnect();
+                }
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(res);
+                }
+            }).catch(error => reject(error));
+        });
+    });
+};
+
+/**
+ * Retrieve value of setting based on key
+ * @param {string} key Key of setting to retrieve
+ * @returns {Promise<any>} Value
+ * @deprecated Use await Settings.get(key)
+ */
+exports.setting = async function (key) {
+    return await Settings.get(key);
+};
+
+/**
+ * Sets the specified setting to specified value
+ * @param {string} key Key of setting to set
+ * @param {any} value Value to set to
+ * @param {?string} type Type of setting
+ * @returns {Promise<void>}
+ */
+exports.setSetting = async function (key, value, type = null) {
+    await Settings.set(key, value, type);
+};
+
+/**
+ * Get settings based on type
+ * @param {string} type The type of setting
+ * @returns {Promise<Bean>} Settings of requested type
+ */
+exports.getSettings = async function (type) {
+    return await Settings.getSettings(type);
+};
+
+/**
+ * Set settings based on type
+ * @param {string} type Type of settings to set
+ * @param {object} data Values of settings
+ * @returns {Promise<void>}
+ */
+exports.setSettings = async function (type, data) {
+    await Settings.setSettings(type, data);
+};
+
+// ssl-checker by @dyaa
+//https://github.com/dyaa/ssl-checker/blob/master/src/index.ts
+
+/**
+ * Get number of days between two dates
+ * @param {Date} validFrom Start date
+ * @param {Date} validTo End date
+ * @returns {number} Number of days
+ */
+const getDaysBetween = (validFrom, validTo) =>
+    Math.round(Math.abs(+validFrom - +validTo) / 8.64e7);
+
+/**
+ * Get days remaining from a time range
+ * @param {Date} validFrom Start date
+ * @param {Date} validTo End date
+ * @returns {number} Number of days remaining
+ */
+const getDaysRemaining = (validFrom, validTo) => {
+    const daysRemaining = getDaysBetween(validFrom, validTo);
+    if (new Date(validTo).getTime() < new Date().getTime()) {
+        return -daysRemaining;
+    }
+    return daysRemaining;
+};
+
+/**
+ * Fix certificate info for display
+ * @param {object} info The chain obtained from getPeerCertificate()
+ * @returns {object} An object representing certificate information
+ * @throws The certificate chain length exceeded 500.
+ */
+const parseCertificateInfo = function (info) {
+    let link = info;
+    let i = 0;
+
+    const existingList = {};
+
+    while (link) {
+        log.debug("cert", `[${i}] ${link.fingerprint}`);
+
+        if (!link.valid_from || !link.valid_to) {
+            break;
+        }
+        link.validTo = new Date(link.valid_to);
+        link.validFor = link.subjectaltname?.replace(/DNS:|IP Address:/g, "").split(", ");
+        link.daysRemaining = getDaysRemaining(new Date(), link.validTo);
+
+        existingList[link.fingerprint] = true;
+
+        // Move up the chain until loop is encountered
+        if (link.issuerCertificate == null) {
+            link.certType = (i === 0) ? "self-signed" : "root CA";
+            break;
+        } else if (link.issuerCertificate.fingerprint in existingList) {
+            // a root CA certificate is typically "signed by itself"  (=> "self signed certificate") and thus the "issuerCertificate" is a reference to itself.
+            log.debug("cert", `[Last] ${link.issuerCertificate.fingerprint}`);
+            link.certType = (i === 0) ? "self-signed" : "root CA";
+            link.issuerCertificate = null;
+            break;
+        } else {
+            link.certType = (i === 0) ? "server" : "intermediate CA";
+            link = link.issuerCertificate;
+        }
+
+        // Should be no use, but just in case.
+        if (i > 500) {
+            throw new Error("Dead loop occurred in parseCertificateInfo");
+        }
+        i++;
+    }
+
+    return info;
+};
+
+/**
+ * Check if certificate is valid
+ * @param {tls.TLSSocket} socket TLSSocket, which may or may not be connected
+ * @returns {object} Object containing certificate information
+ */
+exports.checkCertificate = function (socket) {
+    let certInfoStartTime = dayjs().valueOf();
+
+    // Return null if there is no socket
+    if (socket === undefined || socket == null) {
+        return null;
+    }
+
+    const info = socket.getPeerCertificate(true);
+    const valid = socket.authorized || false;
+
+    log.debug("cert", "Parsing Certificate Info");
+    const parsedInfo = parseCertificateInfo(info);
+
+    if (process.env.TIMELOGGER === "1") {
+        log.debug("monitor", "Cert Info Query Time: " + (dayjs().valueOf() - certInfoStartTime) + "ms");
+    }
+
+    return {
+        valid: valid,
+        certInfo: parsedInfo
+    };
+};
+
+/**
+ * Check if the provided status code is within the accepted ranges
+ * @param {number} status The status code to check
+ * @param {string[]} acceptedCodes An array of accepted status codes
+ * @returns {boolean} True if status code within range, false otherwise
+ */
+exports.checkStatusCode = function (status, acceptedCodes) {
+    if (acceptedCodes == null || acceptedCodes.length === 0) {
+        return false;
+    }
+
+    for (const codeRange of acceptedCodes) {
+        if (typeof codeRange !== "string") {
+            log.error("monitor", `Accepted status code not a string. ${codeRange} is of type ${typeof codeRange}`);
+            continue;
+        }
+
+        const codeRangeSplit = codeRange.split("-").map(string => parseInt(string));
+        if (codeRangeSplit.length === 1) {
+            if (status === codeRangeSplit[0]) {
+                return true;
+            }
+        } else if (codeRangeSplit.length === 2) {
+            if (status >= codeRangeSplit[0] && status <= codeRangeSplit[1]) {
+                return true;
+            }
+        } else {
+            log.error("monitor", `${codeRange} is not a valid status code range`);
+            continue;
+        }
+    }
+
+    return false;
+};
+
+/**
+ * Get total number of clients in room
+ * @param {Server} io Socket server instance
+ * @param {string} roomName Name of room to check
+ * @returns {number} Total clients in room
+ */
+exports.getTotalClientInRoom = (io, roomName) => {
+
+    const sockets = io.sockets;
+
+    if (!sockets) {
+        return 0;
+    }
+
+    const adapter = sockets.adapter;
+
+    if (!adapter) {
+        return 0;
+    }
+
+    const room = adapter.rooms.get(roomName);
+
+    if (room) {
+        return room.size;
+    } else {
+        return 0;
+    }
+};
+
+/**
+ * Allow CORS all origins if development
+ * @param {object} res Response object from axios
+ * @returns {void}
+ */
+exports.allowDevAllOrigin = (res) => {
+    if (process.env.NODE_ENV === "development") {
+        exports.allowAllOrigin(res);
+    }
+};
+
+/**
+ * Allow CORS all origins
+ * @param {object} res Response object from axios
+ * @returns {void}
+ */
+exports.allowAllOrigin = (res) => {
+    res.header("Access-Control-Allow-Origin", "*");
+    res.header("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE, OPTIONS");
+    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+};
+
+/**
+ * Check if a user is logged in
+ * @param {Socket} socket Socket instance
+ * @returns {void}
+ * @throws The user is not logged in
+ */
+exports.checkLogin = (socket) => {
+    if (!socket.userID) {
+        throw new Error("You are not logged in.");
+    }
+};
+
+/**
+ * For logged-in users, double-check the password
+ * @param {Socket} socket Socket.io instance
+ * @param {string} currentPassword Password to validate
+ * @returns {Promise<Bean>} User
+ * @throws The current password is not a string
+ * @throws The provided password is not correct
+ */
+exports.doubleCheckPassword = async (socket, currentPassword) => {
+    if (typeof currentPassword !== "string") {
+        throw new Error("Wrong data type?");
+    }
+
+    let user = await R.findOne("user", " id = ? AND active = 1 ", [
+        socket.userID,
+    ]);
+
+    if (!user || !passwordHash.verify(currentPassword, user.password)) {
+        throw new Error("Incorrect current password");
+    }
+
+    return user;
+};
+
+/**
+ * Convert unknown string to UTF8
+ * @param {Uint8Array} body Buffer
+ * @returns {string} UTF8 string
+ */
+exports.convertToUTF8 = (body) => {
+    const guessEncoding = chardet.detect(body);
+    const str = iconv.decode(body, guessEncoding);
+    return str.toString();
+};
+
+/**
+ * Returns a color code in hex format based on a given percentage:
+ * 0% => hue = 10 => red
+ * 100% => hue = 90 => green
+ * @param {number} percentage float, 0 to 1
+ * @param {number} maxHue Maximum hue - int
+ * @param {number} minHue Minimum hue - int
+ * @returns {string} Color in hex
+ */
+exports.percentageToColor = (percentage, maxHue = 90, minHue = 10) => {
+    const hue = percentage * (maxHue - minHue) + minHue;
+    try {
+        return chroma(`hsl(${hue}, 90%, 40%)`).hex();
+    } catch (err) {
+        return badgeConstants.naColor;
+    }
+};
+
+/**
+ * Joins and array of string to one string after filtering out empty values
+ * @param {string[]} parts Strings to join
+ * @param {string} connector Separator for joined strings
+ * @returns {string} Joined strings
+ */
+exports.filterAndJoin = (parts, connector = "") => {
+    return parts.filter((part) => !!part && part !== "").join(connector);
+};
+
+/**
+ * Send an Error response
+ * @param {object} res Express response object
+ * @param {string} msg Message to send
+ * @returns {void}
+ */
+module.exports.sendHttpError = (res, msg = "") => {
+    if (msg.includes("SQLITE_BUSY") || msg.includes("SQLITE_LOCKED")) {
+        res.status(503).json({
+            "status": "fail",
+            "msg": msg,
+        });
+    } else if (msg.toLowerCase().includes("not found")) {
+        res.status(404).json({
+            "status": "fail",
+            "msg": msg,
+        });
+    } else {
+        res.status(403).json({
+            "status": "fail",
+            "msg": msg,
+        });
+    }
+};
+
+/**
+ * Convert timezone of time object
+ * @param {object} obj Time object to update
+ * @param {string} timezone New timezone to set
+ * @param {boolean} timeObjectToUTC Convert time object to UTC
+ * @returns {object} Time object with updated timezone
+ */
+function timeObjectConvertTimezone(obj, timezone, timeObjectToUTC = true) {
+    let offsetString;
+
+    if (timezone) {
+        offsetString = dayjs().tz(timezone).format("Z");
+    } else {
+        offsetString = dayjs().format("Z");
+    }
+
+    let hours = parseInt(offsetString.substring(1, 3));
+    let minutes = parseInt(offsetString.substring(4, 6));
+
+    if (
+        (timeObjectToUTC && offsetString.startsWith("+")) ||
+        (!timeObjectToUTC && offsetString.startsWith("-"))
+    ) {
+        hours *= -1;
+        minutes *= -1;
+    }
+
+    obj.hours += hours;
+    obj.minutes += minutes;
+
+    // Handle out of bound
+    if (obj.minutes < 0) {
+        obj.minutes += 60;
+        obj.hours--;
+    } else if (obj.minutes > 60) {
+        obj.minutes -= 60;
+        obj.hours++;
+    }
+
+    if (obj.hours < 0) {
+        obj.hours += 24;
+    } else if (obj.hours > 24) {
+        obj.hours -= 24;
+    }
+
+    return obj;
+}
+
+/**
+ * Convert time object to UTC
+ * @param {object} obj Object to convert
+ * @param {string} timezone Timezone of time object
+ * @returns {object} Updated time object
+ */
+module.exports.timeObjectToUTC = (obj, timezone = undefined) => {
+    return timeObjectConvertTimezone(obj, timezone, true);
+};
+
+/**
+ * Convert time object to local time
+ * @param {object} obj Object to convert
+ * @param {string} timezone Timezone to convert to
+ * @returns {object} Updated object
+ */
+module.exports.timeObjectToLocal = (obj, timezone = undefined) => {
+    return timeObjectConvertTimezone(obj, timezone, false);
+};
+
+/**
+ * Create gRPC client stib
+ * @param {object} options from gRPC client
+ * @returns {Promise<object>} Result of gRPC query
+ */
+module.exports.grpcQuery = async (options) => {
+    const { grpcUrl, grpcProtobufData, grpcServiceName, grpcEnableTls, grpcMethod, grpcBody } = options;
+    const protocObject = protojs.parse(grpcProtobufData);
+    const protoServiceObject = protocObject.root.lookupService(grpcServiceName);
+    const Client = grpc.makeGenericClientConstructor({});
+    const credentials = grpcEnableTls ? grpc.credentials.createSsl() : grpc.credentials.createInsecure();
+    const client = new Client(
+        grpcUrl,
+        credentials
+    );
+    const grpcService = protoServiceObject.create(function (method, requestData, cb) {
+        const fullServiceName = method.fullName;
+        const serviceFQDN = fullServiceName.split(".");
+        const serviceMethod = serviceFQDN.pop();
+        const serviceMethodClientImpl = `/${serviceFQDN.slice(1).join(".")}/${serviceMethod}`;
+        log.debug("monitor", `gRPC method ${serviceMethodClientImpl}`);
+        client.makeUnaryRequest(
+            serviceMethodClientImpl,
+            arg => arg,
+            arg => arg,
+            requestData,
+            cb);
+    }, false, false);
+    return new Promise((resolve, _) => {
+        try {
+            return grpcService[`${grpcMethod}`](JSON.parse(grpcBody), function (err, response) {
+                const responseData = JSON.stringify(response);
+                if (err) {
+                    return resolve({
+                        code: err.code,
+                        errorMessage: err.details,
+                        data: ""
+                    });
+                } else {
+                    log.debug("monitor:", `gRPC response: ${JSON.stringify(response)}`);
+                    return resolve({
+                        code: 1,
+                        errorMessage: "",
+                        data: responseData
+                    });
+                }
+            });
+        } catch (err) {
+            return resolve({
+                code: -1,
+                errorMessage: `Error ${err}. Please review your gRPC configuration option. The service name must not include package name value, and the method name must follow camelCase format`,
+                data: ""
+            });
+        }
+
+    });
+};
+
+/**
+ * Returns an array of SHA256 fingerprints for all known root certificates.
+ * @returns {Set} A set of SHA256 fingerprints.
+ */
+module.exports.rootCertificatesFingerprints = () => {
+    let fingerprints = tls.rootCertificates.map(cert => {
+        let certLines = cert.split("\n");
+        certLines.shift();
+        certLines.pop();
+        let certBody = certLines.join("");
+        let buf = Buffer.from(certBody, "base64");
+
+        const shasum = crypto.createHash("sha256");
+        shasum.update(buf);
+
+        return shasum.digest("hex").toUpperCase().replace(/(.{2})(?!$)/g, "$1:");
+    });
+
+    fingerprints.push("6D:99:FB:26:5E:B1:C5:B3:74:47:65:FC:BC:64:8F:3C:D8:E1:BF:FA:FD:C4:C2:F9:9B:9D:47:CF:7F:F1:C2:4F"); // ISRG X1 cross-signed with DST X3
+    fingerprints.push("8B:05:B6:8C:C6:59:E5:ED:0F:CB:38:F2:C9:42:FB:FD:20:0E:6F:2F:F9:F8:5D:63:C6:99:4E:F5:E0:B0:27:01"); // ISRG X2 cross-signed with ISRG X1
+
+    return new Set(fingerprints);
+};
+
+module.exports.SHAKE256_LENGTH = 16;
+
+/**
+ * @param {string} data The data to be hashed
+ * @param {number} len Output length of the hash
+ * @returns {string} The hashed data in hex format
+ */
+module.exports.shake256 = (data, len) => {
+    if (!data) {
+        return "";
+    }
+    return crypto.createHash("shake256", { outputLength: len })
+        .update(data)
+        .digest("hex");
+};
+
+/**
+ * Non await sleep
+ * Source: https://stackoverflow.com/questions/59099454/is-there-a-way-to-call-sleep-without-await-keyword
+ * @param {number} n Milliseconds to wait
+ * @returns {void}
+ */
+module.exports.wait = (n) => {
+    Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, n);
+};
+
+// For unit test, export functions
+if (process.env.TEST_BACKEND) {
+    module.exports.__test = {
+        parseCertificateInfo,
+    };
+    module.exports.__getPrivateFunction = (functionName) => {
+        return module.exports.__test[functionName];
+    };
+}
+
+/**
+ * Generates an abort signal with the specified timeout.
+ * @param {number} timeoutMs - The timeout in milliseconds.
+ * @returns {AbortSignal | null} - The generated abort signal, or null if not supported.
+ */
+module.exports.axiosAbortSignal = (timeoutMs) => {
+    try {
+        // Just in case, as 0 timeout here will cause the request to be aborted immediately
+        if (!timeoutMs || timeoutMs <= 0) {
+            timeoutMs = 5000;
+        }
+        return AbortSignal.timeout(timeoutMs);
+    } catch (_) {
+        // v16-: AbortSignal.timeout is not supported
+        try {
+            const abortController = new AbortController();
+            setTimeout(() => abortController.abort(), timeoutMs);
+
+            return abortController.signal;
+        } catch (_) {
+            // v15-: AbortController is not supported
+            return null;
+        }
+    }
+};
diff --git a/server/utils/array-with-key.js b/server/utils/array-with-key.js
new file mode 100644
index 0000000..94afc79
--- /dev/null
+++ b/server/utils/array-with-key.js
@@ -0,0 +1,85 @@
+/**
+ * An object that can be used as an array with a key
+ * Like PHP's array
+ * @template K
+ * @template V
+ */
+class ArrayWithKey {
+    /**
+     * All keys that are stored in the current object
+     * @type {K[]}
+     * @private
+     */
+    __stack = [];
+
+    /**
+     * Push an element to the end of the array
+     * @param {K} key The key of the element
+     * @param {V} value The value of the element
+     * @returns {void}
+     */
+    push(key, value) {
+        this[key] = value;
+        this.__stack.push(key);
+    }
+
+    /**
+     * Get the last element and remove it from the array
+     * @returns {V|undefined} The first value, or undefined if there is no element to pop
+     */
+    pop() {
+        let key = this.__stack.pop();
+        let prop = this[key];
+        delete this[key];
+        return prop;
+    }
+
+    /**
+     * Get the last key
+     * @returns {K|null} The last key, or null if the array is empty
+     */
+    getLastKey() {
+        if (this.__stack.length === 0) {
+            return null;
+        }
+        return this.__stack[this.__stack.length - 1];
+    }
+
+    /**
+     * Get the first element
+     * @returns {{key:K,value:V}|null} The first element, or null if the array is empty
+     */
+    shift() {
+        let key = this.__stack.shift();
+        let value = this[key];
+        delete this[key];
+        return {
+            key,
+            value,
+        };
+    }
+
+    /**
+     * Get the length of the array
+     * @returns {number} Amount of elements stored
+     */
+    length() {
+        return this.__stack.length;
+    }
+
+    /**
+     * Get the last value
+     * @returns {V|null} The last element without removing it, or null if the array is empty
+     */
+    last() {
+        let key = this.getLastKey();
+        if (key === null) {
+            return null;
+        }
+        return this[key];
+    }
+}
+
+module.exports = {
+    ArrayWithKey
+};
diff --git a/server/utils/knex/lib/dialects/mysql2/schema/mysql2-columncompiler.js b/server/utils/knex/lib/dialects/mysql2/schema/mysql2-columncompiler.js
new file mode 100644
index 0000000..d05a6bc
--- /dev/null
+++ b/server/utils/knex/lib/dialects/mysql2/schema/mysql2-columncompiler.js
@@ -0,0 +1,22 @@
+const ColumnCompilerMySQL = require("knex/lib/dialects/mysql/schema/mysql-columncompiler");
+const { formatDefault } = require("knex/lib/formatter/formatterUtils");
+const { log } = require("../../../../../../../src/util");
+
+class KumaColumnCompiler extends ColumnCompilerMySQL {
+    /**
+     * Override defaultTo method to handle default value for TEXT fields
+     * @param {any} value Value
+     * @returns {string|void} Default value (Don't understand why it can return void or string, but it's the original code, lol)
+     */
+    defaultTo(value) {
+        if (this.type === "text" && typeof value === "string") {
+            log.debug("defaultTo", `${this.args[0]}: ${this.type} ${value} ${typeof value}`);
+            // MySQL 8.0 is required and only if the value is written as an expression: https://dev.mysql.com/doc/refman/8.0/en/data-type-defaults.html
+            // MariaDB 10.2 is required: https://mariadb.com/kb/en/text/
+            return `default (${formatDefault(value, this.type, this.client)})`;
+        }
+        return super.defaultTo.apply(this, arguments);
+    }
+}
+
+module.exports = KumaColumnCompiler;
diff --git a/server/utils/limit-queue.js b/server/utils/limit-queue.js
new file mode 100644
index 0000000..9da6d41
--- /dev/null
+++ b/server/utils/limit-queue.js
@@ -0,0 +1,48 @@
+const { ArrayWithKey } = require("./array-with-key");
+
+/**
+ * Limit Queue
+ * The first element will be removed when the length exceeds the limit
+ */
+class LimitQueue extends ArrayWithKey {
+
+    /**
+     * The limit of the queue after which the first element will be removed
+     * @private
+     * @type {number}
+     */
+    __limit;
+    /**
+     * The callback function when the queue exceeds the limit
+     * @private
+     * @callback onExceedCallback
+     * @param {{key:K,value:V}|nul} item
+     */
+    __onExceed = null;
+
+    /**
+     * @param {number} limit The limit of the queue after which the first element will be removed
+     */
+    constructor(limit) {
+        super();
+        this.__limit = limit;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    push(key, value) {
+        super.push(key, value);
+        if (this.length() > this.__limit) {
+            let item = this.shift();
+            if (this.__onExceed) {
+                this.__onExceed(item);
+            }
+        }
+    }
+
+}
+
+module.exports = {
+    LimitQueue
+};
diff --git a/server/utils/simple-migration-server.js b/server/utils/simple-migration-server.js
new file mode 100644
index 0000000..680f8df
--- /dev/null
+++ b/server/utils/simple-migration-server.js
@@ -0,0 +1,84 @@
+const express = require("express");
+const http = require("node:http");
+const { log } = require("../../src/util");
+
+/**
+ * SimpleMigrationServer
+ * For displaying the migration status of the server
+ * Also, it is used to let Docker healthcheck know the status of the server, as the main server is not started yet, healthcheck will think the server is down incorrectly.
+ */
+class SimpleMigrationServer {
+    /**
+     * Express app instance
+     * @type {?Express}
+     */
+    app;
+
+    /**
+     * Server instance
+     * @type {?Server}
+     */
+    server;
+
+    /**
+     * Response object
+     * @type {?Response}
+     */
+    response;
+
+    /**
+     * Start the server
+     * @param {number} port Port
+     * @param {string} hostname Hostname
+     * @returns {Promise<void>}
+     */
+    start(port, hostname) {
+        this.app = express();
+        this.server = http.createServer(this.app);
+
+        this.app.get("/", (req, res) => {
+            res.set("Content-Type", "text/plain");
+            res.write("Migration is in progress, listening message...\n");
+            if (this.response) {
+                this.response.write("Disconnected\n");
+                this.response.end();
+            }
+            this.response = res;
+            // never ending response
+        });
+
+        return new Promise((resolve) => {
+            this.server.listen(port, hostname, () => {
+                if (hostname) {
+                    log.info("migration", `Migration server is running on http://${hostname}:${port}`);
+                } else {
+                    log.info("migration", `Migration server is running on http://localhost:${port}`);
+                }
+                resolve();
+            });
+        });
+    }
+
+    /**
+     * Update the message
+     * @param {string} msg Message to update
+     * @returns {void}
+     */
+    update(msg) {
+        this.response?.write(msg + "\n");
+    }
+
+    /**
+     * Stop the server
+     * @returns {Promise<void>}
+     */
+    async stop() {
+        this.response?.write("Finished, please refresh this page.\n");
+        this.response?.end();
+        await this.server?.close();
+    }
+}
+
+module.exports = {
+    SimpleMigrationServer,
+};