June 2004 Web Server Survey

In the June 2004 survey we received responses from 51,635,284 sites.

Although web server market share has been relatively stable in recent months, the web is again growing very rapidly both in absolute terms and in terms of active sites hosting distinct content. As measured by hostnames, the Internet has grown 26.1 percent over the past 12 months, adding 10.7 million since the June 2003 survey. That's the strongest period of sustained growth since the boom era of Feb. 2000-2001, during which the Web added 16.9 million hostnames. Thus far in 2004, the net gain has averaged nearly 1 million per month.

Total Sites Across All Domains August 1995 - June 2004

Total Sites Across All Domains, August 1995 - June 2004

The surge in hostnames and active sites has been accompanied by robust growth in the use of the Internet for business. The number of servers using Secure Sockets Layer encryption has grown 56.7 percent in the most recent 12-month period (April 2003 to April 2004), according to our Secure Server Survey. More than 300,000 servers are now using valid third-party SSL certificates, which provide encryption for online banking, retail sales, e-commerce and the secure information exchange.

Market Share for Top Servers Across All Domains August 1995 - June 2004

Graph of market share for top servers across all domains, August 1995 - June 2004

Top Developers
Developer May 2004Percent June 2004Percent Change
Apache3389281767.053471023567.220.17
Microsoft1085816821.481102180721.35-0.13
Sun16444123.2516599563.21-0.04
Zeus7540141.497631521.48-0.01
DeveloperMay 2004PercentJune 2004PercentChange
Apache1606482169.261622645268.71-0.55
Microsoft532836822.97545181423.080.11
Zeus2631241.132588351.10-0.03
Sun1898540.821817580.77-0.05
Totals for Active Servers Across All Domains
June 2000 - June 2004


Sun is the sum of sites running SunONE, 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.