September 2003 Web Server Survey

In the September 2003 survey we received responses from 43,144,374 sites.

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

Top Developers

Developer	August 2003	Percent	September 2003	Percent	Change
Apache	27388860	63.98	27836622	64.52	0.54
Microsoft	10165745	23.75	10156289	23.54	-0.21
SunONE	1534586	3.58	1501241	3.48	-0.10
Zeus	746240	1.74	742950	1.72	-0.02

Active Sites

Developer	August 2003	Percent	September 2003	Percent	Change
Apache	13325183	67.28	13371621	67.45	0.17
Microsoft	4839624	24.44	4804550	24.23	-0.21
Zeus	265011	1.34	266220	1.34	0.00
SunONE	213943	1.08	211234	1.07	-0.01

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

SunONE is the sum of sites running iPlanet-Enterprise, Netscape-Enterprise, Netscape-FastTrack, Netscape-Commerce, Netscape-Communications, Netsite-Commerce & Netsite-Communications.

Microsoft is the sum of sites running Microsoft-Internet-Information-Server, Microsoft-IIS, Microsoft-IIS-W, Microsoft-PWS-95, & Microsoft-PWS.

Platform groupings are here.

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.