When Jetpack Monitor checks your site, we ping your site’s homepage (via a HTTP HEAD request) every five minutes.
We tentatively mark your site as down if the HTTP response code is 400 or greater, which indicates either a permissions error or a fatal code error is prohibiting your site from appearing to visitors, or we see more than 3 300-series redirects, suggesting a redirect loop, or if your site fails to respond within 20 seconds.
Once it is tentatively marked down, we then spin up two separate servers in geographically different locations from a third-party vendor to ensure the problem is not isolated to our network or the location of our primary datacenter.
If all three checks fail, we mark the site as down and notify you. We’ll continue to check the site and once we have agreement it is back online, we’ll send you the all-clear notice.
So, I recommend contacting your hosting provider about this and share the specific dates and times of the reports with them.
