An unknown, but significant, number of websites hosted by GoDaddy are feeling the effects of an apparent attack on the company's DNS servers.

GoDaddy, a registrar and hosting provider, tweeted: "Status Alert:

Hey, all. We're aware of the trouble people are having with our site. We're working on it."

About 30 minutes ago, it said that some service had been restored.

The incident is causing a lot of chatter within Anonymous circles, after an account using the handle "Anonymous Own3r" claimed responsibility, and clarified that this was not an act by the Anonymous "collective," but by a single person.

The person did not provide a motive. The account's bio lists the person as the "security leader" of Anonymous and an "official member."

Anonymous is a loose-knit collective that has no leader.

According to the Associated Press, thousands -- put possibly millions -- of sites are affected. Anonymous in the past has voiced its displeasure with GoDaddy's temporary support for the now-shelved Stop Online Piracy Act, or SOPA, as well as its CEO Bob Parsons' elephant hunting.

Neil Warner, Go Daddy's CISO, did not immediately respond to an email seeking comment.