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

The Silicon Valley firm that is the foundation of a fifth of all websites worldwide, was brought to its knees on Tuesday morning.

Cloudflare experienced a "spike in unusual traffic” shortly before errors broke out across many major websites it serves, the internet infrastructure company told Newsweek. Read the full story here.

Cloudflare is an internet infrastructure platform that powers many popular websites, including Spotify, OpenAI, League of Legends, and more. Cloudflare said the outage was resolved as of 9:30 a.m. EST, and all services would return to normal over the next several hours.

On Tuesday, several websites including X aka Twitter, and ChatGPT became inaccessible to users. The outage was caused by an issue with Cloudflare, an internet infrastructure provider. Now, the company has provided an explanation for the network failure.

ABC News’ Linsey Davis spoke with ABC News contributor Mike Muse, about web infrastructure company, Cloudflare, resolving an issue on its network, which temporarily disrupted services.

As soon as social media users were able to get online following the outage, conspiracy theories began to circulate online.

When web services provider Cloudflare went down on Tuesday, a significant portion of the internet became unavailable.