March 2007 Security Space Survey Results

The Security Space Web Server Survey is a survey of Web server software usage on the Internet broken down by 86 domains. Security Space estimates that nearly 90 percent of all Web sites are "orphans" to which no other sites link. Its Web server survey therefore counts only those servers referenced on other sites.

More than 23.3 million Web sites responded to the March 2007 survey, a slight increase from December's response of nearly 21.5 million. This represents a new peak. The previous high was 22.5 million sites, recored in February 2005.

More than 10.3 million, or 44.21 percent, of Security Space sites surveyed had .com domains.

All Domains (23,331,627) server order is based on global market share
Server	March Count	March %	December Count	December %	Change
Apache	17,100,488	73.29%	15,785,782	73.20%	0.09%
Microsoft	4,668,649	20.01%	4,383,008	20.32%	-0.31%
Zeus	119,073	0.51%	122,967	0.57%	-0.06%
Netscape	66,488	0.28%	71,532	0.33%	-0.05%
WebSTAR	32,494	0.14%	97,982	0.45%	-0.31%
WebSite	9,553	0.04%	10,579	0.05%	-0.01%
Other	1,334,882	5.72%	1,094,389	5.07%	0.65%

Domain Summary
Domain	Description	Web Servers	Percentage
.com	Commercial	10,314,398	44.21%
.de	Germany	1,750,932	7.50%
.net	Network	1,531,384	6.56%
.org	Nonprofit Orgs	1,288,591	5.52%
.uk	United Kingdom	740,616	3.17%
.nl	Netherlands	715,376	3.07%
.edu	Educational	138,635	0.59%

Server Breakdown Across All Domains of the 10 most popular servers. Server order is based on global market share
Server Name	Number Found	Percentage
Apache	4,162,160	17.84%
Microsoft-IIS/6.0	2,950,893	12.65%
Apache/1.3.37	2,365,868	10.14%
Apache/1.3.33	2,148,454	9.21%
Microsoft-IIS/5.0	1,627,503	6.98%
Apache/2.0.54	947,719	4.06%
Apache/1.3.34	810,625	3.47%
Apache/2.0.52	738,542	3.17%
Apache/1.3.27	546,057	2.34%
Apache/2.0.46	438,152	1.88%