Introduction

Overview

LiteSpeed web server is a high performance, secure and easy-to-use web server. It can handle thousands of concurrent connections with small memory footprint. It is much stronger and less vulnerable when facing various attacks.

Standard Features
    HTTP/1.1
    The following features will be supported in the near future:
    Dynamic Content Generation
    LiteSpeed Web Server support the following dynamic content generation methods:
    Virtual Hosting
    LiteSpeed web server supports IP based and name based virtual hosting.

    .htaccess support
    Access control, authentication and redirection directives can be placed in per-directory access control file without changing server's main configuration. Unlike Apache, enabling .htaccess support will not severely degrade server's performance.
Security

LiteSpeed web server provides the following security features:
Reliability

LiteSpeed Web server runs completely in user space. The server can be easily upgraded and the reliability of OS is not affected.
CGI, Fast CGI and servlet engine run in their standalone processes, the reliability of web server is not affected by the quality of third party software.
LiteSpeed web server is capable of instant recovering from crash automatically.

Scalability & Performance

LiteSpeed Web Server uses non-blocking event-driven IO to serve all requests with single threaded processes, requires much less system resources than multiprocessing or multithreaded web servers. LiteSpeed web server is capable of serving thousands of clients concurrently. It provides outstanding performance for both static and dynamic contents because of its architecture and the level of optimization applied. Avoiding scheduling and synchronization makes the server highly efficient.

For static content, LiteSpeed web server can provides up-to 3-6 times better performance than Apache. The network bandwidth becomes a bottleneck in most cases.

For dynamic content, LiteSpeed web server meets or beats the performance of embedded modules found in other web servers, like Apache's mod_php.

With its lite-weight CGI daemon, LiteSpeed web server delievers highest possible CGI performance.

LiteSpeed web server can utilize Unix domain socket for high performance inter-process communication.

For more information, please take a look at our benchmark results.

User friendly

Compatibility

LiteSpeed web server is designed to be interchangeable with popular Web Server Apache.
Currently, functionality of following modules of Apache has been implemented:
mod_alias, mod_access, mod_auth, mod_cgi, mod_ssl, mod_php, mod_fastcgi, mod_jk, mod_gzip/mod_deflate, mod_throttle, mod_proxy, etc.

The following modules will be implemented soon:
mod_rewrite, mod_negotiation, mod_digest, mod_ssi, mod_perl.