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Facebook, WhatsApp, and Instagram down due to DNS outage


Image: Barefoot Communications


Users worldwide are reporting that they are unable to access Facebook, Instagram, and WhatsApp, instead seeing errors that the sites can't be reached.


When attempting to open any of the three sites, they are given DNS_PROBE_FINISHED_NXDOMAIN errors and advised to check if there is a typo in the domain entered in the address bar.


"This site can't be reached. Check if there is a typo in facebook.com. If spelling is correct, try running Windows Network Diagnostics," the error message says.


Mobile users are also reporting that the company's apps are not working, and they are seeing "Please check your internet connection and try again later."

At the moment, Facebook's .onion site is also down, showing the same DNS_PROBE_FINISHED_NXDOMAIN error as the one shown by the company's clear web sites.


It is unknown if this is a planned outage, a problem with the three platforms' servers, or the services being attacked. 


A Facebook spokesperson was not immediately available for comment when contacted by BleepingComputer earlier today.


While the company has not yet provided an explanation for this outage, in BleepingComputer's tests, the Facebook, Instagram, and WhatsApp DNS servers are not responding, which would suggest that this is a DNS configuration or server issue.


Based on user reports available on the outage.report and from conversations with users worldwide, this outage is currently impacting mostly US and European users.


However, until an explanation or status update is issued by Facebook, it's likely that the rest of their users haven't yet noticed it because they're offline.


Facebook, Instagram, and WhatsApp have now acknowledged the ongoing outage on Twitter and said they're working on getting back online as soon as possible.


"We’re aware that some people are having trouble accessing our apps and products," said Facebook spokesperson Andy Stone regarding the outage.


"We’re working to get things back to normal as quickly as possible, and we apologize for any inconvenience."


According to networking experts [1, 2], a BGP routing issue is more likely the cause behind this ongoing outage.

"Between 15:50 UTC and 15:52 UTC Facebook and related properties disappeared from the Internet in a flurry of BGP updates," explained John Graham-Cumming, CTO of Cloudflare.


"The BGP routes pointing traffic to Facebook's IP address space have been withdrawn. The Internet no longer knows where to find Facebook's IPs. One symptom is that DNS requests are failing," added Johannes B. Ullrich, Ph.D., Dean of Research at the SANS Technology Institute.


"But this is just the result of Facebook hosting its DNS servers inside its own network. Even with working DNS (for example if you still have cached results), the IPs are currently not reachable."

This is a developing story ...



Photo Information for Facebook, WhatsApp, and Instagram down due to DNS outage


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