Last night Wikidot.com went down for two hours between 2.10AM and 4.30AM CEST. We're still analyzing the logs to see what happened. As far as we can tell it was not an external attack, but rather a fault in our own system. Our apologies to anyone who was trying to use Wikidot.com at the time. I'll have an explanation later.
The reason for the 2h downtime was that our monitoring service took two hours to notice something was wrong. This is also a first, and we'll be adding a second independent monitoring service to avoid that in the future.