| Used Operating Systems |
| 1 | 33261 | 50.71 | 252 | 11.42 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 26981 | 41.14 | 42 | 1.90 | +http://ahrefs.com/robot/ |
| 3 | 2152 | 3.28 | 1311 | 59.43 | Windows NT |
| 4 | 1036 | 1.58 | 6 | 0.27 | +http://www.warebay.com/bot.html |
| 5 | 875 | 1.33 | 354 | 16.05 | +http://www.google.com/bot.html |
| 6 | 632 | 0.96 | 109 | 4.94 | +http://www.bing.com/bingbot.htm |
| 7 | 195 | 0.30 | 68 | 3.08 | http://help.yahoo.com/help/us/ysearch/sl... |
| 8 | 87 | 0.13 | 3 | 0.14 | Linux [unknown version] |
| 9 | 85 | 0.13 | 5 | 0.23 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 10 | 68 | 0.10 | 14 | 0.63 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 38 | 0.06 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 12 | 31 | 0.05 | 13 | 0.59 | +http://www.exabot.com/go/robot |
| 13 | 30 | 0.05 | 2 | 0.09 | +http://www.xovibot.net/ |
| 14 | 28 | 0.04 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 15 | 24 | 0.04 | 1 | 0.05 | +https://www.lipperhey.com/en/about/ |
| 16 | 22 | 0.03 | 11 | 0.50 | +http://www.meanpath.com/meanpathbot.htm... |
| 17 | 21 | 0.03 | 9 | 0.41 | +http://www.linkdex.com/bots/ |
| 18 | 10 | 0.02 | 0 | 0.00 | Windows 98 |
| 19 | 8 | 0.01 | 2 | 0.09 | +http://yandex.com/bots |
| 20 | 2 | 0.00 | 2 | 0.09 | +info@netcraft.com |
| 21 | 2 | 0.00 | 2 | 0.09 | Linux i686 [unknown version] |
