UptimeRobot monitors website availability, server ports, and ping response times from multiple global test nodes. When an endpoint returns a non-200 HTTP code or fails to reply within the timeout threshold, the system triggers alerts via email, mobile push, and integrations. The free tier gives developers 50 active monitors with 5-minute check intervals and a hosted public status page.
Free tier quotas
Active Monitors
50 monitors (HTTP, ping, port)
Check Interval
5-minute check intervals
Status Pages
1 public status page
Log Retention
3 months of response time and uptime logs
Alert Channels
Email, Discord, Slack, and mobile push notifications
Seat Limit
1 user login seat
Not yet verified. Always confirm on the official pricing page.
👍 Good boy
+Provides 50 free monitors, which is five times more than most competing monitoring services.
+Verifies uptime across HTTP, port, ping, and keyword checks without installing local server agents.
+Includes a public status page to communicate system reliability directly to users.
+Sends fast alert notifications via email, mobile push, Discord, and Slack when checks fail.
👎 Watch out
−Check intervals on the free tier are fixed at 5 minutes, delaying downtime detection.
