| Used Operating Systems |
| 1 | 31613 | 46.29 | 460 | 4.94 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8599 | 12.59 | 2725 | 29.24 | Windows NT |
| 3 | 7566 | 11.08 | 1314 | 14.10 | +http://www.bing.com/bingbot.htm |
| 4 | 5874 | 8.60 | 6 | 0.06 | http://crawler.sistrix.net/ |
| 5 | 4803 | 7.03 | 1650 | 17.71 | +http://www.google.com/bot.html |
| 6 | 3753 | 5.50 | 6 | 0.06 | +http://www.seoprofiler.com/bot |
| 7 | 1923 | 2.82 | 1816 | 19.49 | +http://www.baidu.com/search/spider.html |
| 8 | 994 | 1.46 | 488 | 5.24 | +http://www.linkdex.com/about/bots/ |
| 9 | 871 | 1.28 | 79 | 0.85 | +http://www.profound.net/urlappendbot.ht... |
| 10 | 547 | 0.80 | 77 | 0.83 | +http://yandex.com/bots |
| 11 | 502 | 0.74 | 188 | 2.02 | help@moz.com |
| 12 | 445 | 0.65 | 225 | 2.41 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 119 | 0.17 | 53 | 0.57 | +http://www.exabot.com/go/robot |
| 14 | 91 | 0.13 | 27 | 0.29 | Windows 2000 |
| 15 | 80 | 0.12 | 41 | 0.44 | +http://www.proximic.com/info/spider.php |
| 16 | 79 | 0.12 | 34 | 0.36 | Windows 95 |
| 17 | 70 | 0.10 | 1 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 18 | 39 | 0.06 | 16 | 0.17 | Windows 98 |
| 19 | 32 | 0.05 | 3 | 0.03 | +http://www.yunyun.com/spider.html |
| 20 | 31 | 0.05 | 3 | 0.03 | X11 |
| 21 | 26 | 0.04 | 17 | 0.18 | http://help.yahoo.com/help/us/ysearch/sl... |
| 22 | 23 | 0.03 | 4 | 0.04 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 23 | 22 | 0.03 | 2 | 0.02 | Android 2.3.5 |
| 24 | 19 | 0.03 | 5 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 18 | 0.03 | 2 | 0.02 | +http://www.semrush.com/bot.html |
| 26 | 16 | 0.02 | 10 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 27 | 16 | 0.02 | 7 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 28 | 12 | 0.02 | 9 | 0.10 | Windows ME |
| 29 | 11 | 0.02 | 6 | 0.06 | +http://www.netseer.com/crawler.html; cr... |
| 30 | 11 | 0.02 | 4 | 0.04 | Windows XP |
| 31 | 11 | 0.02 | 11 | 0.12 | MSIE 5.5; Windows 95 |
| 32 | 9 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 33 | 8 | 0.01 | 2 | 0.02 | Windows 92 |
| 34 | 8 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 35 | 7 | 0.01 | 5 | 0.05 | Auto; Windows |
| 36 | 7 | 0.01 | 5 | 0.05 | Windows 3.1 |
| 37 | 7 | 0.01 | 3 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 38 | 6 | 0.01 | 4 | 0.04 | Windows CE |
| 39 | 6 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 40 | 5 | 0.01 | 1 | 0.01 | PPC Mac OS X 10.4 |
| 41 | 4 | 0.01 | 0 | 0.00 | Win32 |
| 42 | 4 | 0.01 | 2 | 0.02 | +http://help.coccoc.com/ |
| 43 | 3 | 0.00 | 3 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 44 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 45 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 46 | 2 | 0.00 | 2 | 0.02 | Intel Mac OS X 10.6 |
| 47 | 1 | 0.00 | 1 | 0.01 | WinHttp.WinHttpRequest.5 |
| 48 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
