A Byzantine failure in the real world
An analysis of the Cloudflare API availability incident on 2020-11-02 When we review design documents at Cloudflare, we are always on the lookout for Single Read More
Category: Outage
Analysis of Today's CenturyLink/Level(3) Outage
Today CenturyLink/Level(3), a major ISP and Internet bandwidth provider, experienced a significant outage that impacted some of Cloudflare’s customers as well as a significant number Read More
Cloudflare Dashboard and API Outage on April 15, 2020
Starting at 1531 UTC and lasting until 1952 UTC, the Cloudflare Dashboard and API were unavailable because of the disconnection of multiple, redundant fibre connections Read More
Recent Instability & What’s Next
Over the past few weeks, Discord has had a number of outages. Two of those were particularly severe, on the 7th and 8th, resulting in Read More
Recent Instability & What’s Next
Over the past few weeks, Discord has had a number of outages. Two of those were particularly severe, on the 7th and 8th, resulting in Read More
Details of the Cloudflare outage on July 2, 2019
Almost nine years ago, Cloudflare was a tiny company and I was a customer not an employee. Cloudflare had launched a month earlier and one Read More
Cloudflare outage caused by bad software deploy (updated)
This is a short placeholder blog and will be replaced with a full post-mortem and disclosure of what happened today. For about 30 minutes today, Read More