Deborah Christie: Annual Website Maintenance Checklist

Since I'm currently writing a bunch of procedures, this reminds me I'll need to do these cleaning tasks on a formal basis at some point. A good site is supposed to more or less maintain itself or at least monitor itself and warn you about problems, but we're not at that point yet.

Here's a question for you: do you know an online app (similar in spirit to dotcom-monitor) that not only monitors HTTP(S), DNS and POP3/SMTP, but also MySQL up/downtime? Is port monitoring (e.g. on port 3306) enough to know whether the database server is up and running?