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Between 11.50am EST and 11.52am EST, Facebook made a series of updates which caused it to 'disappear' from the internet, according to the Chief Technology Officer at CloudFare.
www.dailymail.co.uk
'Between 15:50 UTC and 15:52 UTC Facebook and related properties disappeared from the Internet in a flurry of BGP updates,' he said.
Facebook does not use CloudFare but it runs one of the world's largest DNS resolvers. When sites go down because of failures in DNS systems, CloudFare tries to repair them.
Usman Muzaffar, SVP of engineering at CloudFare, explained to DailyMail.com: 'Humans access information online through domain names, like facebook.com and DNS converts it into numbers, called an IP address, computers use.