March 2003 Web Server Survey

In the March 2003 survey we received responses from 39,174,349 sites.

Market Share for Top Servers Across All Domains August 1995 - March 2003

Graph of market share for top servers across all domains, August 1995 - March 2003

Top Developers

DeveloperFebruary 2003PercentMarch 2003PercentChange
Apache2249232762.72244 8685762.51-0.21
Microsoft968745427.011 074879527.440.43
Zeus7689512.147949402.03-0.11
SunONE4280041.19419120 1.07-0.12

Active Sites

DeveloperFebruary 2003PercentMarch 2003PercentChange
Apache1105398666.751174424666.31-0.44
Microsoft410902924.81441212924.910.10
Zeus2698121.632820401.59-0.04
SunONE2196161.332187621.24-0.09

Totals for Active Servers Across All Domains June 2000 - March 2003


The Netcraft Web Server Survey is a survey of Web Server software usage on Internet connected computers. We collect and collate as many hostnames providing an http service as we can find, and systematically poll each one with an HTTP request for the server name.