Monitor website uptime, page speed, SSL certificates, and heartbeat checks. Create, read, update, and delete uptime checks supporting HTTP, TCP, DNS, SMTP, SSH, and PING protocols with configurable check intervals, regions, and alert thresholds. Manage page speed checks to measure load performance with historical statistics. Monitor SSL certificate validity, expiration, cipher strength, and mixed content. Configure heartbeat checks for cron jobs and background tasks. Manage contact groups for alert routing via email, SMS, and webhooks. Create maintenance windows to suppress alerts during scheduled periods. Retrieve monitoring server locations for firewall whitelisting. Receive webhook events for uptime, SSL, page speed, and heartbeat alerts.