How It Works
The step-by-step actions of UptimeRobot are:
- Requests websites’ headers and gets status codes like “200 OK” and “404 Not Found” every five minutes (or more depending on the monitor’s settings)
- If the status code returned doesn’t indicate a problem, no action is taken.
- If the status code is ~400+ and 500+, the site is not loading.
- To make sure the site is down, UptimeRobot makes several more checks in the next 30 seconds.
- If the site is still down, it sends an alert.