Web Servers List

 

Web Servers List
Here is a detailed and updated list of the most important and popular web servers:
Apache web server - the HTTP web server

Free and the most popular web server in the world developed by the Apache Software Foundation. Apache web server is an open source software and can be installed and made to work on almost all operating systems including Linux, Unix, Windows, FreeBSD, Mac OS X and more. About 60% of the web server machines run the Apache web server - Refer Web server usage statistics from Netcraft.
Apache Web Server
Apache Tomcat

The Apache Tomcat has been developed to support servlets and JSP scripts. Though it can serve as a standalone server, Tomcat is generally used along with the popular Apache HTTP web server or any other web server. Apache Tomcat is free and open source and can run on different operating systems like Linux, Unix, Windows, Mac OS X, Free BSD.
Apache Tomcat
Microsoft Windows Server 2003 Internet Information Services (IIS)

The IIS for Windows Server 2003 operating system has been developed by the software giant, Microsoft. It offers higher levels of performance and security than its predecessor, the Windows 2000 server. It also comes with a good support from the company and is the second most popular server on the web.
Microsoft Windows Server 2003
lighttpd

lighttpd, pronounced "lighty" (don't ask me why), is a free web server that is distributed with the FreeBSD operating system. This open source web server is fast, secure and consumes much less CPU power. Lighttpd can also run on Windows, Mac OS X, Linux and Solaris operating systems.
lighttpd web server
Jigsaw

Jigsaw (W3C's Server) comes from the World Wide Web Consortium. It is open source and free and can run on various platforms like Linux, Unix, Windows, Mac OS X Free BSD etc. Jigsaw has been written in Java and can run CGI scripts and PHP programs.
The Jigsaw web server software from W3C
Sun Java System Web Server

This web server from Sun Microsystems is suited for medium and large web sites. Though the server is free it is not open source. It however, runs on Windows, Linux and Unix platforms (at the time of writing the Mac OS X and FreeBSD operating systems were not supported). The Sun Java System web server supports various server-side languages and technologies such as JSP, Java Servlets, PHP, Perl, Python, Ruby on Rails, ASP and Coldfusion.
Sun Web Server
Xitami web server

Xitami is a free, open source web server developed by iMatrix Corporation. FYI, Xitami is iMatrix spelled backwards. The development has stopped after version 2.5, however, it remains popular on small networks. The server is not the fastest in the market but has a small footprint and is available for Windows, Linux and Unix platforms.
Xitami web server
Zeus web server

The Zeus web server runs on Linux and Free BSD operating systems. It has been developed by Zeus technology Ltd. And is known for its speed, reliability, security and flexibility. The web server is used on some of the busiest web sites of the world including Ebay. Zeus web server is not free and costs more than a thousand pounds.
Zeus Technology Ltd. - Zeus web server

For further information, refer Web server comparison on Wikipedia and Basic web servers on the World Wide Web Consortium web site (this list is outdated - that's why I have this article.