| Used Operating Systems |
| 1 | 28142 | 34.15 | 238 | 3.03 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 20353 | 24.70 | 1094 | 13.94 | +http://ahrefs.com/robot/ |
| 3 | 17219 | 20.89 | 2104 | 26.81 | Windows NT |
| 4 | 8246 | 10.01 | 3812 | 48.57 | +http://www.baidu.com/search/spider.html |
| 5 | 3606 | 4.38 | 6 | 0.08 | +http://www.seoprofiler.com/bot |
| 6 | 2479 | 3.01 | 125 | 1.59 | +http://yandex.com/bots |
| 7 | 570 | 0.69 | 116 | 1.48 | +http://www.linkdex.com/about/bots/ |
| 8 | 527 | 0.64 | 129 | 1.64 | +http://www.google.com/bot.html |
| 9 | 219 | 0.27 | 61 | 0.78 | help@moz.com |
| 10 | 196 | 0.24 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 11 | 149 | 0.18 | 37 | 0.47 | +http://www.bing.com/bingbot.htm |
| 12 | 111 | 0.13 | 26 | 0.33 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 72 | 0.09 | 0 | 0.00 | Solaris 9.x |
| 14 | 72 | 0.09 | 0 | 0.00 | America Online Browser 1.1; rev1.1; Wind... |
| 15 | 70 | 0.08 | 4 | 0.05 | X11 |
| 16 | 52 | 0.06 | 1 | 0.01 | Android 2.3.5 |
| 17 | 44 | 0.05 | 0 | 0.00 | Win32 |
| 18 | 43 | 0.05 | 2 | 0.03 | Linux i686 [unknown version] |
| 19 | 36 | 0.04 | 0 | 0.00 | Macintosh PPC |
| 20 | 29 | 0.04 | 26 | 0.33 | Windows 95 |
| 21 | 28 | 0.03 | 6 | 0.08 | Windows 98 |
| 22 | 24 | 0.03 | 0 | 0.00 | Linux 2.4.x |
| 23 | 20 | 0.02 | 5 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 18 | 0.02 | 9 | 0.11 | http://crawler.sistrix.net/ |
| 25 | 18 | 0.02 | 0 | 0.00 | Solaris 2.4.x |
| 26 | 11 | 0.01 | 2 | 0.03 | Windows XP |
| 27 | 10 | 0.01 | 10 | 0.13 | Auto; Windows |
| 28 | 8 | 0.01 | 8 | 0.10 | Windows CE |
| 29 | 7 | 0.01 | 7 | 0.09 | Windows 2000 |
| 30 | 7 | 0.01 | 5 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 31 | 7 | 0.01 | 7 | 0.09 | ) - BrowseX (2.0.0 Windows |
| 32 | 6 | 0.01 | 0 | 0.00 | BeOS BePC |
| 33 | 5 | 0.01 | 4 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 34 | 4 | 0.00 | 0 | 0.00 | Linux [unknown version] |
| 35 | 2 | 0.00 | 1 | 0.01 | Windows ME |
| 36 | 2 | 0.00 | 2 | 0.03 | +info@netcraft.com |
| 37 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 38 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
