| Used Operating Systems |
| 1 | 8901 | 37.08 | 137 | 2.07 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7824 | 32.59 | 3067 | 46.31 | Windows NT |
| 3 | 1745 | 7.27 | 1623 | 24.51 | +http://www.baidu.com/search/spider.html |
| 4 | 926 | 3.86 | 3 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 5 | 824 | 3.43 | 460 | 6.95 | +http://ahrefs.com/robot/ |
| 6 | 752 | 3.13 | 192 | 2.90 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 648 | 2.70 | 387 | 5.84 | +http://www.google.com/bot.html |
| 8 | 564 | 2.35 | 77 | 1.16 | +http://yandex.com/bots |
| 9 | 458 | 1.91 | 152 | 2.30 | +http://www.bing.com/bingbot.htm |
| 10 | 343 | 1.43 | 95 | 1.43 | +http://www.linkdex.com/bots/ |
| 11 | 247 | 1.03 | 112 | 1.69 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 145 | 0.60 | 71 | 1.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 145 | 0.60 | 97 | 1.46 | +http://www.xovibot.net/ |
| 14 | 118 | 0.49 | 39 | 0.59 | +http://www.profound.net/domainappender |
| 15 | 55 | 0.23 | 2 | 0.03 | +http://advbot.net/bot.html |
| 16 | 51 | 0.21 | 1 | 0.02 | +http://www.aihitdata.com/about |
| 17 | 50 | 0.21 | 24 | 0.36 | +http://duckduckgo.com |
| 18 | 33 | 0.14 | 4 | 0.06 | Linux i686 [unknown version] |
| 19 | 30 | 0.12 | 1 | 0.02 | http://crawler.sistrix.net/ |
| 20 | 21 | 0.09 | 8 | 0.12 | X11 |
| 21 | 16 | 0.07 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 22 | 16 | 0.07 | 9 | 0.14 | +http://www.exabot.com/go/robot |
| 23 | 14 | 0.06 | 10 | 0.15 | +http://www.semrush.com/bot.html |
| 24 | 10 | 0.04 | 10 | 0.15 | Windows 95 |
| 25 | 9 | 0.04 | 5 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 26 | 9 | 0.04 | 3 | 0.05 | Android 2.3.5 |
| 27 | 8 | 0.03 | 5 | 0.08 | Windows 98 |
| 28 | 5 | 0.02 | 1 | 0.02 | BREW |
| 29 | 4 | 0.02 | 1 | 0.02 | +http://isdownload.biz |
| 30 | 4 | 0.02 | 2 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 4 | 0.02 | 4 | 0.06 | +http://domainsigma.com/robot |
| 32 | 3 | 0.01 | 1 | 0.02 | +http://getdownload.ws |
| 33 | 3 | 0.01 | 1 | 0.02 | +http://www.seodiver.com/bot |
| 34 | 3 | 0.01 | 3 | 0.05 | Windows 3.1 |
| 35 | 2 | 0.01 | 1 | 0.02 | http://www.searchmetrics.com/en/searchme... |
| 36 | 2 | 0.01 | 2 | 0.03 | Windows ME |
| 37 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 38 | 2 | 0.01 | 1 | 0.02 | +http://gimme60.com |
| 39 | 2 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 40 | 2 | 0.01 | 1 | 0.02 | +http://www.pathdefender.com/help/crawle... |
| 41 | 2 | 0.01 | 2 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 42 | 1 | 0.00 | 1 | 0.02 | Windows CE |
| 43 | 1 | 0.00 | 1 | 0.02 | Windows 2000 |
| 44 | 1 | 0.00 | 1 | 0.02 | Windows XP |
| 45 | 1 | 0.00 | 1 | 0.02 | Linux [unknown version] |
| 46 | 1 | 0.00 | 1 | 0.02 | Intel Mac OS X 10.6 |
| 47 | 1 | 0.00 | 1 | 0.02 | ) - BrowseX (2.0.0 Windows |
