LiteSpeed Web Server
LiteSpeed Web Server (LSWS) is proprietary web server software. It is the 4th most popular web server, estimated to be used by 10% of websites as of July 2021. LSWS is developed by privately held LiteSpeed Technologies. The software uses the same configuration format as Apache HTTP Server and is compatible with most Apache features. An open source variant is also available.
| Original author(s) | George Wang |
|---|---|
| Developer(s) | LiteSpeed Technologies |
| Initial release | July 1, 2003 |
| Stable release | 5.4.12
/ 22 March 2021 |
| Written in | C, C++ |
| Operating system | CloudLinux OS, AlmaLinux/Centos/Red Hat/Fedora, Debian/Ubuntu, FreeBSD |
| Type | Web server |
| License | Non-free proprietary or GPL3 |
| Website | www |
LSWS was released in 2003, and in August 2008 it became the 16th most popular web server. In November 2016, LiteSpeed's market share grew from 0.39% to 3.29%, increasing its position from 10th to 4th most popular web server according to Netcraft. In 2017, a team from Hong Kong Polytechnic University found it to be one of the six most popular web servers, and it was estimated by a team at RWTH Aachen University to be running 9.2% of all HTTP/2-enabled websites. As of April 2020, LSWS was used by 69.3% of websites using QUIC and 47.6% of websites using HTTP/3.
According to a Netcraft web server survey, LiteSpeed had not grown beyond 3% of global market shares as of 2021.
LiteSpeed Cache plugin, also known as LSCache, is a cache and performance management plugin for websites developed specifically for LiteSpeed Web Server. You can download this plugin from WordPress.