| Used Operating Systems |
| 1 | 132735 | 85.06 | 2086 | 45.14 | Windows NT |
| 2 | 7403 | 4.74 | 143 | 3.09 | Intel Mac OS X 10.6 |
| 3 | 5199 | 3.33 | 559 | 12.10 | http://help.yahoo.com/help/us/ysearch/sl... |
| 4 | 2250 | 1.44 | 739 | 15.99 | +http://www.google.com/bot.html |
| 5 | 1353 | 0.87 | 41 | 0.89 | Intel Mac OS X 10.5 |
| 6 | 1224 | 0.78 | 67 | 1.45 | http://www.dotnetdotcom.org/, crawler@do... |
| 7 | 1183 | 0.76 | 616 | 13.33 | +http://www.bing.com/bingbot.htm |
| 8 | 1179 | 0.76 | 13 | 0.28 | Intel Mac OS X 10.4 |
| 9 | 701 | 0.45 | 22 | 0.48 | Linux i686 [unknown version] |
| 10 | 600 | 0.38 | 34 | 0.74 | MirrorDetector; +http://yandex.com/bots |
| 11 | 484 | 0.31 | 9 | 0.19 | PPC Mac OS X 10.4 |
| 12 | 404 | 0.26 | 104 | 2.25 | +http://yandex.com/bots |
| 13 | 246 | 0.16 | 1 | 0.02 | +http://www.puritysearch.net/ |
| 14 | 225 | 0.14 | 6 | 0.13 | PPC Mac OS X 10.5 |
| 15 | 204 | 0.13 | 4 | 0.09 | Linux [unknown version] |
| 16 | 156 | 0.10 | 79 | 1.71 | +http://www.exabot.com/go/robot |
| 17 | 88 | 0.06 | 8 | 0.17 | http://www.majestic12.co.uk/bot.php?+ |
| 18 | 86 | 0.06 | 2 | 0.04 | iPhone |
| 19 | 65 | 0.04 | 22 | 0.48 | Windows 98 |
| 20 | 50 | 0.03 | 1 | 0.02 | +http://www.scoutjet.com/ |
| 21 | 43 | 0.03 | 2 | 0.04 | X11 |
| 22 | 38 | 0.02 | 19 | 0.41 | +http://about.ask.com/en/docs/about/webm... |
| 23 | 34 | 0.02 | 0 | 0.00 | http://desktop.google.com/ |
| 24 | 32 | 0.02 | 12 | 0.26 | Windows NT 5.2 |
| 25 | 20 | 0.01 | 7 | 0.15 | http://www.search17.com/bot.php |
| 26 | 16 | 0.01 | 5 | 0.11 | +info@netcraft.com |
| 27 | 12 | 0.01 | 2 | 0.04 | PPC Mac OS X Mach-O |
| 28 | 8 | 0.01 | 7 | 0.15 | Windows 95 |
| 29 | 4 | 0.00 | 4 | 0.09 | Windows ME |
| 30 | 4 | 0.00 | 0 | 0.00 | +http://www.chainn.com/mxbot.html |
| 31 | 2 | 0.00 | 2 | 0.04 | Windows 2000 |
| 32 | 2 | 0.00 | 2 | 0.04 | Windows 3.1 |
| 33 | 2 | 0.00 | 2 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 34 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 35 | 1 | 0.00 | 1 | 0.02 | Windows CE |
| 36 | 1 | 0.00 | 0 | 0.00 | J2ME/MIDP |
| 37 | 1 | 0.00 | 0 | 0.00 | +http://docs.google.com |
