According to 4chan’s status blog, they are down due to a DDoS attack.
Site is down due to DDoS. We now join the ranks of MasterCard, Visa, PayPal, et al.—an exclusive club!
If you recall, a group calling themselves Anonymous launched similar attacks against those who refused to work with Wikileaks. Sites included Paypal, MasterCard, Visa, and Bank of America among others.
At this time, it is not known whether these DDoS attacks are related or who might be behind this latest attack on 4Chan. While it doesn’t seem that 4Chan and Anonymous would have any animosity towards each other (it’s been reported that they’re closely related), Tumblr and 4Chan went at it just last month and the situation seemed unresolved.
Who do you think took out 4Chan?
via 4chan – Status