I recently found that one of my IIS 7.5 sites (on Win 2008 R2) had been down and out (Stopped). While I'm now trying out a servers alive kind of service, I began wondering when and why was it down.
It's possible that during some routine maintenance I forgot it or accidentally stopped when trying to stop another site but I really would want to know when it was stopped and any other information that I could find. Is there a log I could check? The IIS Logs appear to only have Requests logged, which don't really help here.
Best Answer
Check if either the IIS log file has rolled over due to a restart of an instance (or if there is a new date/time entry line) and do the same for the HTTPERR log file (located roughly here C:\Windows\System32\LogFiles\HTTPERR) This will just give you a rought estimate of when the site went down.