Please review my app: Was it up? - dead simple monitoring
ooorrr: One other suggestion -One problem with these sorts of services is that when they're working, nothing happens, so if I don't get mails for a week, I don't know if that's because everything's been working or if you've stopped running the service.There are lots of complex answers, but an easy one is just to have a "last checked" for each URL - it's ok if I have to go on-demand to make sure things are running. (A weekly/monthly update is nice too, just more work.)