Internet infrastructure firm Cloudflare hit by outage

A number of high-profile websites, including X and ChatGPT, went down for many on Tuesday, due to problems affecting major internet infrastructure firm, Cloudflare.

Thousands of users began reporting issues with the sites, as well as other services, to outage monitoring site Downdetector shortly after 11:30 GMT.

Cloudflare said in a statement it had seen "a spike in unusual traffic to one of Cloudflare's services beginning at 11:20 UTC" which had caused errors for traffic passing through its network.

"We do not yet know the cause of the spike in unusual traffic," it said, adding "we are all hands-on deck to make sure all traffic is served without errors."

Later, as many internet services started to return to normal, the firm said it had "deployed a change which has restored dashboard services."

On its homepage, X was displaying a message for some users saying there was a problem with its internal server, as a result of an "error" originating with Cloudflare.

ChatGPT's site was also displaying an error message telling some users: "please unblock challenges cloudflare.com to proceed."

Cloudflare said in an earlier note on its service status dashboard that the issues it was experiencing "potentially impacts multiple customers".

In updates since it added it was "seeing services recover" but some customers "may continue to observe higher-than-normal error rates as we continue remediation efforts".

Sign up for our Tech Decoded newsletter to follow the world's top tech stories and trends. Outside the UK? Sign up here.