MainWP Advanced Uptime Monitor is an extension that works with the Uptime Robot service that checks your websites sites every 5 minutes, 24 hours a day, 7 days a week. In the case your site is not loading, it makes few more checks in the next 3 minutes to make sure that the site is down. If the site is still down, it will notify you immediately.

How the Uptime Robot Works

Here are the step-by-step actions of Uptime Robot to understand it better:

• It asks for your websites headers and gets status codes like “200-ok”, “404-not found”,
  etc. every 5 minutes (or more depending on the monitor’s settings),
• If the status code doesn’t indicate a problem, we are good
• If the status code is~400+ and 500+, then the site is not loading
• To make sure the site is down, Uptime Robot makes several more checks in the next 30 seconds,
• If the site is still down, it sends an alert.

How the Extension Works

The Advanced Uptime Monitor Extension uses the Uptime Robot API to Create, Edit, Display or Delete your monitors. The extension itself does not check your websites. It only displays data from your Uptime Robot account.