Http://ycombinator.com/ is a 404?

not sure it's just me but if I search "ycombinator" in google I get the proper website as a first result, with all the relevant sections:

https://www.google.com/search?aq=f&oq=ycombinator&sourceid=chrome&ie=UTF-8&q=ycombinator

but if I click on the main link http://ycombinator.com I get "Page Not Found"

Same here https://news.ycombinator.com/item?id=1 try to click the link on top.