SAN FRANCISCO (AP) For many users, Facebook and other of its applications, including Instagram and WhatsApp, appeared to fall down at the same moment on Monday, prompting them to go to Twitter and other social media sites to express their displeasure.

Users stated that the social network and its applications began flashing error warnings before noon Eastern time. According to the website downdetector.com, which analyzes online traffic and site activity, all of the company's applications Facebook, Instagram, WhatsApp, and Facebook Messenger had outage complaints.

Just as Facebook's Antigone Davis was on CNBC defending the business against a whistleblower's allegations and its management of research evidence showing Instagram is detrimental to adolescents, the company's whole network of services fell offline.
Facebook communications executive Andy Stone said on Twitter, “We’re aware that some people are having trouble accessing our apps and products. We’re working to get things back to normal as quickly as possible, and we apologize for any inconvenience.”

A quick look at Down Detector (or your Twitter feed) indicates that the issues are prevalent. While it's unclear why the platforms are unavailable to so many users, their DNS records indicate that, like with last week's Slack outage, the problem is apparently DNS (it's always DNS). Cloudflare senior vice president Dane Knecht observes that Facebook's border gateway protocol (BGP) routes have been "withdrawn from the internet." BGP lets networks choose the optimal path to deliver internet data.