April 27, 2022 3:02PM
Cloudflare blocks 15M rps HTTPS DDoS attack
DDoS
Deep Dive
Attacks
Speed & Reliability
Earlier this month, Cloudflare’s systems automatically detected and mitigated a 15.3 million request-per-second (rps) DDoS attack — one of the largest HTTPS DDoS attacks on record...
March 18, 2020 12:00PM
The problem with thread^W event loops
NGINX
Linux
Back when Cloudflare was created, over 10 years ago now, the dominant HTTP server used to power websites was Apache httpd. However, we decided to build our infrastructure using the then relatively new NGINX server....
June 07, 2017 1:47PM
How we built rate limiting capable of scaling to millions of domains
Attacks
Rate Limiting
Optimization
Network
Security
Reliability
Back in April we announced Rate Limiting of requests for every Cloudflare customer. Being able to rate limit at the edge of the network has many advantages: it’s easier for customers to set up and operate, their origin servers are not bothered by excessive traffic or layer 7 attacks....