mattwnz:nigelj:@AncestryComAu: Technical issues with the site today. Working hard to fix. Thanks for your patience!? - https://twitter.com/#!/AncestryComAu/status/195002037140848640
Could have remaining issues for some, for a little while as the ISPs that cached the "domain doesn't exist" responses purge them from their caches.
It's now down for me. If they haven't renewed their domain, and the domain registrant is closed for the holiday it could create problems.
No, they've successfully renewed it, 3:28pm our time, just DNS caches that have cached the NXDOMAIN responses now (hopefully).