| Used Operating Systems |
| 1 | 28270 | 55.31 | 431 | 4.86 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 9527 | 18.64 | 6612 | 74.57 | +http://ahrefs.com/robot/ |
| 3 | 8164 | 15.97 | 562 | 6.34 | Windows NT |
| 4 | 2213 | 4.33 | 299 | 3.37 | +http://yandex.com/bots |
| 5 | 947 | 1.85 | 437 | 4.93 | +http://www.google.com/bot.html |
| 6 | 854 | 1.67 | 226 | 2.55 | +http://www.bing.com/bingbot.htm |
| 7 | 266 | 0.52 | 75 | 0.85 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 250 | 0.49 | 1 | 0.01 | Linux [unknown version] |
| 9 | 162 | 0.32 | 44 | 0.50 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 108 | 0.21 | 41 | 0.46 | Windows 95 |
| 11 | 52 | 0.10 | 28 | 0.32 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 37 | 0.07 | 14 | 0.16 | +http://www.linkdex.com/bots/ |
| 13 | 35 | 0.07 | 13 | 0.15 | +http://www.baidu.com/search/spider.html |
| 14 | 34 | 0.07 | 2 | 0.02 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 15 | 32 | 0.06 | 9 | 0.10 | +http://www.semrush.com/bot.html |
| 16 | 20 | 0.04 | 6 | 0.07 | Windows 3.1 |
| 17 | 19 | 0.04 | 5 | 0.06 | Windows CE |
| 18 | 18 | 0.04 | 7 | 0.08 | +http://www.exabot.com/go/robot |
| 19 | 17 | 0.03 | 1 | 0.01 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 20 | 17 | 0.03 | 13 | 0.15 | Windows 98 |
| 21 | 13 | 0.03 | 13 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 22 | 12 | 0.02 | 5 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 23 | 12 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 24 | 11 | 0.02 | 1 | 0.01 | J2ME/MIDP |
| 25 | 8 | 0.02 | 7 | 0.08 | Windows 2000 |
| 26 | 5 | 0.01 | 5 | 0.06 | Auto; Windows |
| 27 | 5 | 0.01 | 2 | 0.02 | Windows XP |
| 28 | 5 | 0.01 | 5 | 0.06 | ) - BrowseX (2.0.0 Windows |
| 29 | 2 | 0.00 | 2 | 0.02 | Windows ME |
| 30 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
