I know there are tools like pingdom.com and uptimerobot.com that will monitor your site and let you know if they're down, but I find that my WordPress site is experiencing the dreaded "error establishing a database connection" more often than desired, and I'd like to get some sort of notification when that happens (but not in the form of a user complaint!). Pingdom and Uptimerobot do not consider that an error, and thus do not push any notifications.
Are there any simple tools or methods that will monitor my site for that specific problem (and perhaps other problems?) that may not be caught otherwise.
[Edit] 1. I'm referring specifically to the the well-known WordPress error that often occurs due to various DB connectivity reasons. When the error occurs, visiting the site returns the default white page with text shown below.
- For the purposes of this question, I'm not interested in why it occurs or how to fix it, but instead, I'd simply like to figure out how to automatically monitor it and get notified. Thanks.