Sometimes more people than usual use Twitter. Instagram CEO Adam Mosseri said in a tweet that it felt like a ' snow day.' In addition to Facebook's services and apps being down, some of the company's internal tools were also reportedly impacted by the outage. With those servers offline, typing '' in a browser or using the app to try to reach Facebook failed. Specifically, the updates cut off network routes to Facebook's DNS servers. PT, Cloudflare detected a flurry of unusual updates from Facebook describing changes to how BGP should handle Facebook's part of the network. The Domain Name System (DNS) translates human comprehensible network names like into the numeric Internet Protocol (IP) addresses that actually are used to address and route data across the internet. The Border Gateway Protocol (BGP) helps establish the best way to send data hopping from one device to another until it reaches its final destination. Facebook's problem involved a combination of two fundamental internet technologies, BGP and DNS, both instrumental to helping computing devices to connect across the network.

Facebook messenger app down