| Used Operating Systems |
| 1 | 45951 | 83.70 | 391 | 11.86 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3605 | 6.57 | 1520 | 46.09 | Windows NT |
| 3 | 1377 | 2.51 | 243 | 7.37 | +http://www.linkdex.com/bots/ |
| 4 | 925 | 1.68 | 514 | 15.59 | +http://www.baidu.com/search/spider.html |
| 5 | 680 | 1.24 | 2 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 6 | 517 | 0.94 | 19 | 0.58 | Linux [unknown version] |
| 7 | 402 | 0.73 | 2 | 0.06 | +http://megaindex.com/crawler |
| 8 | 381 | 0.69 | 152 | 4.61 | +http://yandex.com/bots |
| 9 | 312 | 0.57 | 96 | 2.91 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 261 | 0.48 | 99 | 3.00 | +http://www.google.com/bot.html |
| 11 | 94 | 0.17 | 24 | 0.73 | +http://www.semrush.com/bot.html |
| 12 | 80 | 0.15 | 34 | 1.03 | Windows 98 |
| 13 | 79 | 0.14 | 49 | 1.49 | Windows 95 |
| 14 | 41 | 0.07 | 19 | 0.58 | +http://www.bing.com/bingbot.htm |
| 15 | 40 | 0.07 | 32 | 0.97 | Linux i686 [unknown version] |
| 16 | 30 | 0.05 | 23 | 0.70 | X11 |
| 17 | 23 | 0.04 | 10 | 0.30 | Windows XP |
| 18 | 19 | 0.03 | 15 | 0.45 | J2ME/MIDP |
| 19 | 13 | 0.02 | 9 | 0.27 | Auto; Windows |
| 20 | 12 | 0.02 | 9 | 0.27 | ) - BrowseX (2.0.0 Windows |
| 21 | 10 | 0.02 | 7 | 0.21 | Windows 3.1 |
| 22 | 8 | 0.01 | 6 | 0.18 | Windows 2000 |
| 23 | 8 | 0.01 | 6 | 0.18 | MSIE 5.5; Windows NT 4.0 |
| 24 | 6 | 0.01 | 5 | 0.15 | Windows CE |
| 25 | 4 | 0.01 | 2 | 0.06 | http://www.opensiteexplorer.org/dotbot, ... |
| 26 | 4 | 0.01 | 2 | 0.06 | Windows ME |
| 27 | 4 | 0.01 | 3 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 28 | 2 | 0.00 | 2 | 0.06 | +http://www.seograph.net/bot.html |
| 29 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 2 | 0.00 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 31 | 2 | 0.00 | 2 | 0.06 | +info@netcraft.com |
| 32 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 33 | 1 | 0.00 | 1 | 0.03 | PPC Mac OS X Mach-O |
