Belfast Telegraph

Facebook down because of 'technical glitch'

Facebook said some users were briefly unable to access the site because of a technical glitch.

The social networking site with more than one billion users worldwide said on Monday it made a change to its domain name system set-up. The change resulted in some users temporarily not being able to reach the site.

The problem was detected and the site is now fully back.

A DNS acts like a phone book for the Internet, translating a domain name like into a number that points to a specific host computer.

Facebook did not say how many users were affected or for how long.

Some technology blogs say the problems lasted about 20 minutes.