Major internet platforms, including X and ChatGPT, were inaccessible for thousands of users globally Tuesday as web-infrastructure firm Cloudflare was hit by an outage, disrupting internet services.

Cloudflare, whose network handles around a fifth of web traffic, said it started to investigate the internal service degradation around 6:40 a.m. ET. It has deployed a fix but some customers might still be impacted as it recovers service.

The incident seemingly prevented thousands of users from accessing platforms such as Canva, X, Grindr, ChatGPT and NJ Transit as users logged reports with Downdetector. Reports about issues with Cloudflare had, however, come down to about 600 by 8 a.m. ET from a peak of nearly 5,000, the outage-tracking tool showed.