UptimeObserver.com

Free uptime monitoring for hobby projects. Includes 50 monitors with 5-minute check intervals, supports HTTP, ping, port, and keyword monitoring. ⬆️ Back to Top

Free for first 100,000 requests (Rails only)

Uptime Monitoring free for up to 100,000 events for unlimited projects and unlimited status pages.

Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-time monitorming for 10 websites or api-endpoints, and provides 2 dashboards/status pages.

Uptime, content, dependency, and SSL monitoring with multi-region verification and status pages. Free plan includes 15 monitors, 5-minute checks, and 90 days of history.

Rails APM with request-based pricing: live traces, slow SQL, N+1 detection, and error tracking. Free forever for 50k requests/month, 7-day retention, 1 app, 1 uptime check, and email alerts. No credit card required.

Noncommercial free server monitoring service, alerts and metrics.

Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 server, 10 uptime, and 10 domain for free.