I am really happy with Wikidot's current uptime.
It is more reliable than most other FREE web hosting providers :-)

woot!! go wikidot!

When are peak times? What causes wikidot to go down?

These are good figures although it doesn't really surprise me. The underlying infrastructure of Wikidot has always seemed to be good and, odd things like Snow Leopard apart, the uptime has never really been an issue. I was reading an article a while back on the astonomical cost of getting to 5"9s", i.e 99.99999% - millions! So 2 "9s" is probably a more realistic target to shoot at. Well done.

Today I also checked out Google's new Site Performance tool, and:

On average, pages in your site take 1.1 seconds to load (updated on Nov 30, 2009). This is faster than 86% of sites.

This, as I believe, comes form their crawling statistics.

We are also reaching top 3,000 internet sites according to Alexa, or top 2,000 sites according Quantcast.

So not bad IMHO ;-)

Great uptime! Same as tsangk, I've never really experienced many issues with Wikidot. That may be because we're on the other side of the world to the US, but I think anyone can be happy with just an hour downtime per month.

A minute? I'm not complaining :) That'd be great.

The actual downtime per month comes from very short unavailability periods, a minute or two per day, sometimes even less (but such periods are rounded up to full minutes). So even if a monitoring service cannot cannot access pages for a few seconds, full minute is accounted.

As Pieter says, we are gradually building more and more stable, reliable infrastructure for Wikidot. It is important for both our paid and free users — nobody likes to see "site down", either this is a business site, collaboration wiki or a personal blog.

Salute to Wikidot team!