Wasn't there that time AWS had some outage, but the red-circle picture (for failure) was itself hosted on the unavailable AWS service, so their status page didn't show it as being unavailable? Or am I mis-remembering something/repeating an urban legend?

These pages at Google/Amazon/Netflix are updated by the incident response team, so it's a manual task.

Edited my comment to just say the same thing. Haha What's the point of them then?

I guess technically the "server" is responding, so...