Big-O Notation Explained: The Regex That Took Down Cloudflare for 27 Minutes
At 13:42 UTC on July 2, 2019, Cloudflare's network stopped answering requests. Not slow. Down.
For 27 minutes, a huge slice of the web returned 502 errors instead of loading.
The cause wasn't a DDoS a
blog.zyvop.com11 min read