522 timeout error
ANSWER: The 522 timeout error is issued by CloudFlare occassionally to specific users in specific locations around the world. While the true nature of this error is supposed to alert users that an ‘origin’ server is either down or loading so slowly that no data is arriving to end users, the reality is that sometimes this error shows up for other reasons. For example, uptime monitoring services such as UptimeRobot will sometimes report a timeout issue but then 30 seconds later your site is somehow back up again according to their alerts. In these cases its usually a false positive because your origin server never went down at all. If you notice 522 errors often or for extended periods of time, this could point toward “real” cases of origin server issues.