LiteSpeed Web Server is an Apache-interchangeable, high performance, secure, easy-to-use web server. It can handle thousands of concurrent connections with a small memory footprint. Its security features also make it much less vulnerable to various attacks.

Basic Features


LiteSpeed Web Server provides the following security features:


LiteSpeed Web Server recovers from crashes instantly. LiteSpeed Web Server also runs completely in user space. Thus the server can easily switch between different versions without affecting the reliability of the operating system.

CGI, Fast CGI and servlet engines run in their standalone processes, the reliability of web server is not affected by the quality of third party software.

User Friendly


LiteSpeed Web Server is designed to be interchangeable with Apache, the most popular server software on the Web. LiteSpeed Web Server can even run directly from Apache's configuration files.

LiteSpeed Web Server also uses the same syntax for distributed configuration files (.htacess) and URL rewrite rules, which makes migration as easy as setting the LiteSpeed Web Server document root to the same directory as Apache.

Currently, functionalities of the following Apache modules have been implemented:
mod_access, mod_actions, mod_alias, mod_auth, mod_auth_ldap, mod_auth_passthrough, mod_autoindex, mod_cache, mod_cgi, mod_expires, mod_fastcgi, mod_frontpage, mod_geoip, mod_gzip/mod_deflate, mod_jk, mod_mime, mod_php, mod_proxy, mod_rewrite, mod_security, mod_ssl, mod_suexec, and mod_throttle.