I don't think it's difficult, I think they just lie. Monitoring is very simple, I even learned this from a document released by the Google devops team many yea

I don't think it's difficult, I think they just lie. Monitoring is very simple, I even learned this from a document released by the Google devops team many years ago. Always alert from the end user perspective. So in other words have an external server test login to Gmail. Simple as that. They manually update that status page to not scare away stockholders.