It's an actual redirect- if you look quickly, before the redirect, there's a page titled "Your Page Title," with the text "Optional page text here." If you press Control + U quickly enough (at least in Firefox), the source code comes up. It is:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
I had the same problem with Firefox. It seems to be fine now.
EDIT: The same thing happened again. This is the website it redirects to (for those lucky enough not to have this problem). It seems very unlikely that this is simply a DNS error.
My first thought is that LW got haxXxed, but ping tells me that LW and the other site are both hosted by amazonaws. I suspect the cause is amazon's cloud service making sure I won't use it.
http://lesswrong.com is suddenly redirecting to a Tibetan meditation site. What the hell?