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October 2001 Security Space Survey Results -- October 2001

By ServerWatch Staff (Send Email)
October 1, 2001

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 even though there are almost 20 million Web sites, nearly 90 percent are "orphans" to which no other sites link. Security Space''s Web server survey includes only those servers referenced on other sites.

Nearly 3.5 million Web sites responded to the October 2001 survey.

All Domains (3,757,637)
server order is based on global market share
Server October
Count
October % September
Count
September % Change
Apache 2,473,021 62.96% 2,321,530 61.78% +1.18%
Microsoft 1,061,669 27.03% 1,025,277 27.29% -0.26%
Netscape 99,733 2.54% 98,763 2.63% -0.09%
Zeus 45,044 1.15% 42,028 1.12% +0.03%
WebSTAR 32,944 0.84% 28,664 0.76% +0.08%
WebSite 25,616 0.65% 25,626 0.68% -0.03%
Other 190,100 4.84% 215,749 5.74% -0.90%

Domain Summary
Domain Description Web Servers Percentage
com Commercial  1,870,974 47.63%
de Germany  301,917 7.69%
net Network  244,506 6.22%
org Nonprofit Orgs  227,868 5.80%
uk United Kingdom  149,823 3.81%
edu Educational  56,889 1.45%
gov U.S. Gov''t  8,150 0.21%

Server Breakdown Across All Domains
of the 10 most popular servers.
Server order is based on global market share
Server Name Number Found Percentage
Microsoft-IIS/4.0 552,893 14.08%
Microsoft-IIS/5.0 485,132 12.35%
Apache/1.3.12 471,569 12.00%
Apache/1.3.20 373,320 9.50%
Apache/1.3.14 304,602 7.75%
Apache/1.3.9 304,172 7.74%
Apache/1.3.19 303,170 7.72%
Apache/1.3.6 162,757 4.14%
Apache/1.3.3 93,113 2.37%
Apache/1.3.11 78,341 1.99%

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