I have tested this in the past, and a few clients on the service I launched last year (https://servercheck.in/ https://servercheck.in/) have also reported the s

I have tested this in the past, and a few clients on the service I launched last year (https://servercheck.in/ https://servercheck.in/) have also reported the same: Google Docs is unreliable at best. Besides false positives, there were at least two or three outages (sometimes for an hour or more) unreported. Google Docs is not meant to be a status monitoring tool. Use the right tool for the job; there are plenty of free and cheap alternatives that do things much better, are more reliable, and save you setup and maintenance time.