UptimeRobot

What is UptimeRobot?

UptimeRobot pings your site or API on a regular interval and alerts you the moment it stops responding. It's about as simple as uptime monitoring gets: add a URL, set a check interval, pick how you want to be notified, and it does that one job without trying to be a full observability platform.

Key features

• HTTP(S), ping, port, and keyword monitoring, so you can check for more than just "did the server respond"
• Alerts over email, SMS, Slack, and a range of other integrations when a monitor goes down or recovers
• Public status pages you can share with users during an incident
• A generous free tier that covers a meaningful number of monitors for a solo project or small app
• Response time history so you can spot gradual slowdowns, not just hard outages

Who it's for

Solo builders and small teams who want a dead-simple "tell me when it's down" alert without configuring a full monitoring stack. Not a substitute for real application performance monitoring or error tracking if you need deeper visibility into why something broke.

Pricing

Free tier covers a solid number of monitors at a basic check interval, with paid plans unlocking shorter check intervals, more monitors, and more integrations.