Cloudflare said on Tuesday morning that it was "all hands on deck" trying to work out the cause of the outage.

Cloudflare and AWS went down worldwide, but DeepLearning AI managed to stay online. A simple AI move made the difference.

Downdetector, the platform used worldwide to track service outages, was briefly unavailable after Cloudflare’s network disruption caused its pages to fail, showing an error asking users to unblock a Cloudflare challenge.

For several hours Tuesday, a significant portion of the internet was unavailable in Cloudflare's worst outage since 2019.

Even Downdetector, a website that tracks internet outages via user-submitted reports, was temporarily knocked down. (The website appears to have come back online, once again allowing users to report other websites that were taken down by the Cloudflare outage.)

What is Cloudflare? Why is NJ Transit, X (Twitter) and other major apps down? See the latest, what's going on.

Infrastructure company Cloudflare has been hit with what it calls "widespread 500 errors, [with] Dashboard and API also failing."

Thousands of social media users have reported issues with X within the last few hours due to a major Cloudflare outage. On Downdetector, there was a peak of nearly 5,000 reports, just before midday. However, although X seemed to stabilise for a brief period, it appears to be down again as of around 12.30pm.