Answer This: The 6 Hour Facebook Outage Is Likely Due To A Simple Technical Issue


Monday’s outages on Facebook, WhatsApp and Instagram are likely due to a glitch in the company’s domain name system, an obscure but crucial component of the internet.

Commonly known as DNS, it is like a telephone directory for the Internet. It is the tool that converts a web domain, like, to the actual IP address where the site resides. Think of as the person they might look for in the White Pages and the IP address as the physical address they find.

On Monday, a technical issue with Facebook Inc.’s DNS records resulted in at least six hours of outages. When a DNS error occurs, a user’s web browser or smartphone apps can no longer navigate to Facebook services.

Not only did Facebook’s main platforms go down, some of its internal applications, including the company’s own messaging system, were also shut down.

Twitter and Reddit users also said employees at the Menlo Park, Calif., Campus were unable to access offices and conference rooms requiring security badges. This could happen if the system granting access is also connected to the same domain –

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The problem at Facebook seems to have its root in the Border Gateway Protocol, or BGP. If DNS is the Internet’s telephone directory, BGP is its postal service. When a user enters data on the Internet, BGP determines the best available paths that the data could take.

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