The term web server can mean one of two things:
- a computer responsible for serving web pages, mostly HTML documents, via the HTTP protocol to clients, mostly web browsers;
- a software program that is working as a daemon serving web documents.
- Apache HTTP Server from the Apache Software Foundation
- Internet Information Server (IIS) from Microsoft
- Caudium (formerly Roxen)
- AOLserver from America Online
- thttpd from ACME Laboratories
- Zeus Web Server from Zeus Technology
- Sun ONE from Sun Microsystems (formerly Netscape's iPlanet nee Enterprise)
- iPlanet from Netscape Communications Corporation
- WebSTAR from 4D, Inc.
- Stronghold from Red Hat
- NCSA HTTPd
- Microsoft Windows PWS
You can find the current web servers statistics from the Netcraft Web Server Survey.