| Used Operating Systems |
| 1 | 69481 | 85.36 | 4969 | 57.33 | Windows NT |
| 2 | 5583 | 6.86 | 2320 | 26.77 | http://help.yahoo.com/help/us/ysearch/sl... |
| 3 | 1940 | 2.38 | 258 | 2.98 | Linux i686 [unknown version] |
| 4 | 1344 | 1.65 | 486 | 5.61 | +http://www.google.com/bot.html |
| 5 | 878 | 1.08 | 275 | 3.17 | http://www.searchme.com/support/ |
| 6 | 328 | 0.40 | 149 | 1.72 | +http://about.ask.com/en/docs/about/webm... |
| 7 | 304 | 0.37 | 17 | 0.20 | http://www.google.com/bot.html |
| 8 | 235 | 0.29 | 39 | 0.45 | Windows 98 |
| 9 | 177 | 0.22 | 0 | 0.00 | Windows XP |
| 10 | 164 | 0.20 | 0 | 0.00 | Windows 6.0; MSIE 8.0.6001.18241 |
| 11 | 162 | 0.20 | 16 | 0.18 | PPC Mac OS X Mach-O |
| 12 | 87 | 0.11 | 5 | 0.06 | Windows ME |
| 13 | 86 | 0.11 | 11 | 0.13 | Intel Mac OS X |
| 14 | 79 | 0.10 | 35 | 0.40 | +http://www.exabot.com/go/robot |
| 15 | 74 | 0.09 | 5 | 0.06 | Windows CE |
| 16 | 57 | 0.07 | 6 | 0.07 | +http://discoveryengine.com/discobot.htm... |
| 17 | 52 | 0.06 | 5 | 0.06 | http://www.dotnetdotcom.org/, crawler@do... |
| 18 | 52 | 0.06 | 1 | 0.01 | Windows NT 5.2 |
| 19 | 50 | 0.06 | 1 | 0.01 | +http://WebDataCentre.com/ |
| 20 | 40 | 0.05 | 2 | 0.02 | http://www.majestic12.co.uk/bot.php?+ |
| 21 | 38 | 0.05 | 0 | 0.00 | Windows 6.0; MSIE 7.0.6001.18000 |
| 22 | 33 | 0.04 | 15 | 0.17 | Windows 95 |
| 23 | 27 | 0.03 | 5 | 0.06 | +http://www.scoutjet.com/ |
| 24 | 20 | 0.02 | 2 | 0.02 | Macintosh PPC |
| 25 | 20 | 0.02 | 11 | 0.13 | MSIE 5.5; Windows NT 4.0 |
| 26 | 14 | 0.02 | 7 | 0.08 | http://misc.yahoo.com.cn/help.html |
| 27 | 12 | 0.01 | 6 | 0.07 | http://help.naver.com/delete_main.asp |
| 28 | 8 | 0.01 | 0 | 0.00 | Windows 6.0; MSIE 7.0.6000.16764 |
| 29 | 8 | 0.01 | 5 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 30 | 7 | 0.01 | 1 | 0.01 | X11 |
| 31 | 6 | 0.01 | 3 | 0.03 | Windows 3.1 |
| 32 | 5 | 0.01 | 2 | 0.02 | Auto; Windows |
| 33 | 4 | 0.00 | 0 | 0.00 | Windows 6.0; MSIE 7.0.6000.16643 |
| 34 | 4 | 0.00 | 1 | 0.01 | SunOS sun4v |
| 35 | 4 | 0.00 | 1 | 0.01 | PPC Mac OS X |
| 36 | 3 | 0.00 | 3 | 0.03 | Win32 |
| 37 | 2 | 0.00 | 0 | 0.00 | Windows 6.0; MSIE 7.0.6000.16757 |
| 38 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 39 | 1 | 0.00 | 1 | 0.01 | Windows NT 5.1 |
| 40 | 1 | 0.00 | 1 | 0.01 | Mac_PowerPC Mac OS X; en |
| 41 | 1 | 0.00 | 1 | 0.01 | WinHttp.WinHttpRequest.5 |
| 42 | 1 | 0.00 | 1 | 0.01 | +http://www.jadynave.com/robot |
