| Used Operating Systems |
| 1 | 18880 | 71.15 | 172 | 4.25 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3881 | 14.62 | 1557 | 38.46 | Windows NT |
| 3 | 1849 | 6.97 | 1576 | 38.93 | +http://www.baidu.com/search/spider.html |
| 4 | 574 | 2.16 | 135 | 3.33 | +http://www.bing.com/bingbot.htm |
| 5 | 464 | 1.75 | 114 | 2.82 | +http://www.google.com/bot.html |
| 6 | 256 | 0.96 | 125 | 3.09 | +http://ahrefs.com/robot/ |
| 7 | 140 | 0.53 | 121 | 2.99 | Windows 95 |
| 8 | 126 | 0.47 | 26 | 0.64 | +http://yandex.com/bots |
| 9 | 85 | 0.32 | 27 | 0.67 | Windows 98 |
| 10 | 36 | 0.14 | 14 | 0.35 | +http://www.linkdex.com/bots/ |
| 11 | 29 | 0.11 | 26 | 0.64 | Auto; Windows |
| 12 | 29 | 0.11 | 26 | 0.64 | MSIE 5.5; Windows NT 4.0 |
| 13 | 28 | 0.11 | 22 | 0.54 | Windows ME |
| 14 | 24 | 0.09 | 20 | 0.49 | Windows CE |
| 15 | 22 | 0.08 | 20 | 0.49 | MSIE 5.5; Windows NT 5.0 |
| 16 | 18 | 0.07 | 17 | 0.42 | Windows 3.1 |
| 17 | 16 | 0.06 | 16 | 0.40 | Windows 2000 |
| 18 | 16 | 0.06 | 14 | 0.35 | ) - BrowseX (2.0.0 Windows |
| 19 | 14 | 0.05 | 7 | 0.17 | +http://www.meanpath.com/meanpathbot.htm... |
| 20 | 11 | 0.04 | 1 | 0.02 | Windows XP |
| 21 | 9 | 0.03 | 1 | 0.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 22 | 8 | 0.03 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 23 | 6 | 0.02 | 3 | 0.07 | +http://gimmeusa-update.com/crawler |
| 24 | 6 | 0.02 | 1 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 25 | 3 | 0.01 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 26 | 2 | 0.01 | 2 | 0.05 | +http://www.seograph.net/bot.html |
| 27 | 2 | 0.01 | 1 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 28 | 1 | 0.00 | 1 | 0.02 | Linux i686 [unknown version] |
| 29 | 1 | 0.00 | 1 | 0.02 | +info@netcraft.com |
| 30 | 1 | 0.00 | 1 | 0.02 | PPC Mac OS X Mach-O |
