I have been using the services of the french Woozweeb to monitor the availability and the performance of a few of my own websites since many years. A free Woozweb account allowed me to define up to five (later up to ten) URLs to be checked on a regular base (I don’t recall the exact frequency, but it was multiple times per hour). Woozweb would accumulate the responses, display a graph of response times as well as the latest HTTP response code, analyse the response headers, etc. Every so three of four weeks, I would check my account, to verify that the different providers were not failing to do what they promised: host a responsive website.
This should be part of your content management solution: after all, content isn’t worth anything if it is not available. So monitoring your site is an essential part of your CM system, even if you do so in a separate tool.
Although I received a mail to extend my Woozweb account just few days ago, an attempt to log into the site just showed a shutdown notice:
I will be on the lookout for alternative solutions like Woozweb (suggestions are welcome). And remember: if you’re going to close down your service, make sure not to send out renewal notices after the shutdown!