https://blog.cloudflare.com/cloudflare-outage-on-july-17-2020/amp/?__twitter_impression=true&s=09
The Cloudflare Blog
Cloudflare outage on July 17, 2020
Today a configuration error in our backbone network caused an outage for Internet properties and Cloudflare services that lasted 27 minutes. We saw traffic drop by about 50% across our network.