I’m using uptimerobot and pingdom to monitor uptime of my host. Just recently, I’ve had quite a few reports from uptimerobot about apparent downtime… not for long (usually a few minutes). The message is:
The monitor ‘mymonitor’ (https://mydomain.com) is currently DOWN (HTTP 522 - CloudFlare Timeout)
Why is CloudFlare being singled out here? I’ve had CloudFlare sitting in the middle for a long time now, working flawlessly, without any such messages and without changing my setup, so why am I getting these downtime reports now, with CloudFlare apparently to blame?
I also use pingdom, and often pingdom won’t report any downtime even though uptimerobot is, but sometimes it will.
Any ideas? Has CloudFlare started to blacklist or greylist pings from tools like uptimerobot?