The errors were focused on large websites with substantial traffic, but weren’t universal: users in some places, such as Berlin, Germany, reported no problems throughout the outage. The cause of the outage was quickly identified as a problem with the “edge cloud” provider Fastly. The company offers a content delivery network service, or CDN. With Fastly blaming the outage on a “service configuration” and no further evidence to the contrary, it is vanishingly unlikely that the problems were the result of a malicious attack. Gov.uk, for instance, ran a backup CDN on Amazon’s CloudFront service – but required manual intervention to switch to the backup.

Source: The Irish Times June 08, 2021 15:45 UTC