San Francisco-based Fastly acknowledged a problem just before 6 a.m. Eastern. It said in repeated updates on its website that it was “continuing to investigate the issue.”
Down Detector, which tracks internet outages, said: “Reports indicate there may be a widespread outage at Fastly, which may be impacting your service.”
Fastly runs a CDN (Content Delivery Network) used by many media outlets and other websites that helps those entities provide multimedia content to users. It was an outage in some part of the widespread CDN that crippled Fastly’s client sites on Tuesday.
“This morning it looked like the entire internet was down,” said CBS News technology reporter Dan Patterson. He said the fact that most affected sites were showing “Error 503” messages was an early indicator that a network error was behind the outages, rather than a hack.
“We wouldn’t see this one Error 503 everywhere” if it was a hack, Patterson said, suggesting it was more likely a “misconfiguration of some sort.”
Fastly said it had implemented a fix, and the affected sites were slowly coming back online, but Patterson said it would be patchy for users in different regions as the issue was resolved.