Open source reverse proxy server for HTTP, HTTPS, SMTP, POP3, and IMAP protocols, as well as a load balancer, HTTP cache, and a web server (origin server).
Started with a strong focus on high concurrency, high performance and low memory usage. It is licensed under the 2-clause BSD-like license and it runs on almost every platform and Operating System. Its development started in 2002 by Igor Sysoev, later in 2011 a company was formed Nginx, Inc in San Francisco.
Market share in Jan 2015 stood at about 24%. As of Nov 2020 NGINX also maintains its lead in two other metrics, with a total of 414 million sites (33.7% share) and 79.8 million domains (30.3%), while Apache still has the largest share of active sites (25.9%).
NGINX is very popular with high traffic web sites. Some popular sites using NGINX:
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