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 counts only those servers referenced on other sites.
More than 10.4 million Web sites responded to the May 2003 survey, exceeding last September’s peak of 9,045,027 sites. Almost 5.3 million of those, or 50.61 percent, had .com domains.
| All Domains (10,432,028) server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 6,813,534 | 65.31% | 6,469,437 | 64.82% | +0.49% |
| Microsoft | 2,556,205 | 24.50% | 2,461,341 | 24.66% | -0.16% |
| Netscape | 106,075 | 1.02% | 103,175 | 1.03% | -0.01% |
| Zeus | 94,473 | 0.91% | 93,343 | 0.94% | -0.03% |
| WebSTAR | 81,838 | 0.78% | 77,761 | 0.78% | 0.00% |
| WebSite | 30,485 | 0.29% | 30,856 | 0.31% | -0.02% |
| Other | 749,418 | 7.18% | 744,160 | 7.46% | -0.28% |
| Domain Summary |
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| Domain | Description | Web Servers | Percentage | |
| .com | Commercial | 5,280,096 | 50.61% | |
| .net | Network | 737,181 | 7.07% | |
| .de | Germany | 694,854 | 6.66% | |
| .org | Nonprofit Orgs | 588,197 | 5.64% | |
| .uk | United Kingdom | 349,719 | 3.35% | |
| .edu | Educational | 93,072 | 0.89% | |
| .gov | U.S. Gov’t | 12,165 | 0.12% | |
| Server Breakdown Across All Domains of the 10 most popular servers. Server order is based on global market share |
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| Server Name | Number Found | Percentage | ||
| Apache/1.3.27 | 2,364,960 | 22.67% | ||
| Microsoft-IIS/5.0 | 2,044,682 | 19.60% | ||
| Apache/1.3.26 | 1,475,610 | 14.14% | ||
| Apache | 776,195 | 7.44% | ||
| Microsoft-IIS/4.0 | 491,777 | 4.71% | ||
| Apache/1.3.20 | 373,257 | 3.58% | ||
| Roxen/2.2.252 | 276,165 | 2.65% | ||
| Apache/1.3.22 | 255,380 | 2.45% | ||
| Apache/1.3.19 | 209,056 | 2.00% | ||
| Apache/1.3.23 | 161,167 | 1.54% | ||
The Security Space Web Server Survey is a survey of Web server software usage on the Internet broken down by 86 domains. Below are statistical breakouts for some of the more popular domains. Summary data is also available.
| .com (Commercial) Domains 5,280,096 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 3,312,986 | 62.74% | 3,159,784 | 62.38% | +0.36% |
| Microsoft | 1,352,595 | 25.62% | 1,296,874 | 25.60% | +0.02% |
| Netscape | 46,795 | 0.89% | 45,558 | 0.90% | -0.01% |
| Zeus | 46,279 | 0.88% | 45,674 | 0.90% | -0.02% |
| WebSTAR | 44,987 | 0.85% | 43,163 | 0.85% | 0.00% |
| WebSite | 14,798 | 0.28% | 14,950 | 0.30% | -0.02% |
| Other | 461,656 | 8.74% | 459,056 | 9.06% | -0.32% |
| .net (Network) Domains 737,181 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 571,812 | 77.57% | 540,290 | 76.99% | +0.58% |
| Microsoft | 130,248 | 17.67% | 126,088 | 17.97% | -0.30% |
| Netscape | 5,236 | 0.71% | 5,043 | 0.72% | -0.01% |
| Zeus | 5,405 | 0.73% | 5,668 | 0.81% | -0.08% |
| WebSTAR | 1,571 | 0.21% | 1,566 | 0.22% | -0.01% |
| WebSite | 2,363 | 0.32% | 2,415 | 0.34% | -0.02% |
| Other | 20,546 | 2.79% | 20,680 | 2.95% | -0.16% |
| .de (Germany) Domains 694,854 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 611,705 | 88.03% | 588,354 | 87.94% | +0.09% |
| Microsoft | 58,566 | 8.43% | 57,635 | 8.61% | -0.18% |
| Netscape | 8,349 | 1.20% | 8,057 | 1.20% | 0.00% |
| Zeus | 1,233 | 0.18% | 1,309 | 0.20% | -0.02% |
| WebSTAR | 1,081 | 0.16% | 1,092 | 0.16% | 0.00% |
| WebSite | 944 | 0.14% | 939 | 0.14% | 0.00% |
| Other | 12,976 | 1.87% | 11,647 | 1.74% | +0.13% |
| .org (Nonprofit Organizations) Domains 588,197 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 381,218 | 64.81% | 363,334 | 64.36% | +0.45% |
| Microsoft | 169,259 | 28.78% | 162,800 | 28.84% | -0.06% |
| Netscape | 4,488 | 0.76% | 4,409 | 0.78% | -0.02% |
| Zeus | 4,826 | 0.82% | 4,768 | 0.84% | -0.02% |
| WebSTAR | 3,318 | 0.56% | 3,322 | 0.59% | -0.03% |
| WebSite | 3,439 | 0.58% | 3,492 | 0.62% | -0.04% |
| Other | 21,649 | 3.68% | 22,380 | 3.96% | -0.28% |
| .uk (United Kingdom) Domains 349,719 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 200,299 | 57.27% | 192,909 | 56.88% | +0.39% |
| Microsoft | 89,757 | 25.67% | 87,549 | 25.81% | -0.14% |
| Netscape | 2,806 | 0.80% | 2,761 | 0.81% | -0.01% |
| Zeus | 22,127 | 6.33% | 21,698 | 6.40% | -0.07% |
| WebSTAR | 721 | 0.21% | 726 | 0.21% | 0.00% |
| WebSite | 665 | 0.19% | 640 | 0.19% | 0.00% |
| Other | 33,344 | 9.53% | 32,877 | 9.69% | -0.16% |
| .edu (Educational) Domains 93,072 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 49,182 | 52.84% | 48,204 | 52.73% | +0.11% |
| Microsoft | 31,103 | 33.42% | 30,513 | 33.38% | +0.04% |
| Netscape | 3,740 | 4.02% | 3,686 | 4.03% | -0.01% |
| Zeus | 123 | 0.13% | 121 | 0.13% | 0.00% |
| WebSTAR | 2,194 | 2.36% | 2,229 | 2.44% | -0.08% |
| WebSite | 485 | 0.52% | 492 | 0.54% | -0.02% |
| Other | 6,245 | 6.71% | 6,166 | 6.75% | -0.04% |
| .gov (U.S. Government) Domains 12,165 servers server order is based on global market share |
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| Server | May Count | May % | April Count | April % | Change |
| Apache | 4,546 | 37.37% | 4,433 | 37.21% | +0.16% |
| Microsoft | 4,354 | 35.79% | 4,233 | 35.53% | +0.26% |
| Netscape | 1,627 | 13.37% | 1,628 | 13.66% | -0.29% |
| Zeus | 4 | 0.03% | 4 | 0.03% | 0.00% |
| WebSTAR | 200 | 1.64% | 189 | 1.59% | +0.05% |
| WebSite | 79 | 0.65% | 78 | 0.65% | 0.00% |
| Other | 1,355 | 11.14% | 1,349 | 11.32% | -0.18% |
