The outage, which plagued Facebook's flagship service as well as Facebook-owned properties Instagram and WhatsApp, lasted for almost 14 hours, according to CNN. It's believed to be the biggest interruption ever suffered by the social network.
Pointing out that the Facebook outage also extended to its other properties, including Instagram and WhatsApp, Sarah Miller, the deputy director at the Open Markets Institute, which is for the break-up of Facebook and other Silicon Valley companies, said, "The more integrated a platform becomes, the greater the risk and reach of epic failures like this one".
The outage appeared to be abating early Thursday.
Unlike Facebook which bases its income on ad revenue, Telegram is funded by user donations, and includes features like encrypted end-to-end messaging. The hashtag #FacebookDown and #InstagramDown were trending on Twitter for much of the day.
Facebook first publicly addressed the issue Wednesday afternoon, acknowledging in a tweet that "some people are now having trouble accessing the Facebook family of apps".
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People used the tags to post memes about the outage, speculate about its cause and trade tips for how to survive without the company's apps.
"We're aware that some people are now having trouble accessing the Facebook family of apps".
"Yesterday, we made a server configuration change that triggered a cascading series of issues".
As of Thursday, downdetector.com showed 37 percent of problems Thursday morning related to log-in; 32 percent with loading the newsfeed; and 30 percent a total blackout. Facebook said the issue had been resolved and that it's systems were recovering. And if you haven't rushed to Twitter yet, we'll save you the trouble: yes, Facebook posting is down and Instagram is buggy.