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Facebook and its Instagram and WhatsApp platforms suffered a worldwide outage that lasted more than six hours on Tuesday morning (AEDT).
The outage began around 2.30am AEDT. Shortly before 9am, Facebook, Instagram and WhatsApp services have started to come back online, though some users are reporting that they are still experiencing problems. The company did not say what might be causing the outage.
Some online users reported being able to access the pages again – but there have not yet been any official announcements on a complete fix.
Outage website Downdetector earlier noted a spike in user reports relating to the services, which share backend infrastructure, about 2.45am.
“We’re aware that some people are having trouble accessing our apps and products,” Facebook said on Twitter.
“We’re working to get things back to normal as quickly as possible, and we apologise for any inconvenience.”
On Twitter, Facebook policy communications director Andy Stone said the company was aware of the reported problems and “working to get things back to normal as quickly as possible”.
The New York Times reports Facebook has now sent a team to one of its California data centres to manually reset the server.
The cause of the outage is still unknown.
Users reported being unable to access Facebook in the USA and Europe, as well as Australia.
Facebook’s internal systems used by employees also went down.
Doug Madory, director of internet analysis for Kentik Inc., said it appears that the routes Facebook advertises online that tell the entire internet how to reach its properties are not available.
Meanwhile, amid the outage, social media rival, Twitter, posted: “hello literally everyone.”
Mr Madory said it looks like the DNS routes that Facebook makes available to the networking world have been withdrawn.
The Domain Name System is an integral element of how traffic on the internet is routed.
DNS translates an address like “facebook.com” to an IP address like 126.96.36.1990.
If Facebook’s DNS records have disappeared, no one could find it.
Adam Mosseri, head of Instagram, posted the below updated on IG just after 10am AEST on Tuesday,