Igor Sysoev started Nginx (pronounced “engine-x”) in 2002 at Rambler, a large Russian web portal, to handle more than 10,000 simultaneous connections. That was the “C10k problem” that process-per-connection servers struggled with. The first public release came in 2004, and its event-driven design with low memory use made it popular as a front-end proxy in front of Apache, PHP-FPM and application servers.
NGINX, Inc. was founded in 2011 and sold to F5 in 2019. Odd minor versions are the mainline branch, and one even-numbered stable branch comes out every year. HTTP/3 support arrived in 2023. Nginx is now one of the most used web servers.
