| Used Operating Systems |
| 1 | 37330 | 45.94 | 315 | 2.24 | http://mj12bot.com/ |
| 2 | 13708 | 16.87 | 9566 | 68.02 | +http://ahrefs.com/robot/ |
| 3 | 10478 | 12.90 | 187 | 1.33 | +http://www.semrush.com/bot.html |
| 4 | 6057 | 7.45 | 485 | 3.45 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 4967 | 6.11 | 531 | 3.78 | Windows NT |
| 6 | 2983 | 3.67 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 2911 | 3.58 | 2272 | 16.16 | +http://www.baidu.com/search/spider.html |
| 8 | 706 | 0.87 | 156 | 1.11 | +http://www.linkdex.com/bots/ |
| 9 | 543 | 0.67 | 149 | 1.06 | +http://napoveda.seznam.cz/en/seznambot-... |
| 10 | 426 | 0.52 | 149 | 1.06 | +http://www.google.com/bot.html |
| 11 | 321 | 0.40 | 90 | 0.64 | +http://www.bing.com/bingbot.htm |
| 12 | 295 | 0.36 | 59 | 0.42 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 231 | 0.28 | 59 | 0.42 | +http://yandex.com/bots |
| 14 | 83 | 0.10 | 8 | 0.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 45 | 0.06 | 5 | 0.04 | +http://www.seokicks.de/robot.html |
| 16 | 24 | 0.03 | 2 | 0.01 | +http://www.linkpad.ru |
| 17 | 24 | 0.03 | 4 | 0.03 | Windows 98 |
| 18 | 22 | 0.03 | 0 | 0.00 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 19 | 16 | 0.02 | 0 | 0.00 | Macintosh |
| 20 | 14 | 0.02 | 2 | 0.01 | X11 |
| 21 | 11 | 0.01 | 1 | 0.01 | crawler@mixrank.com |
| 22 | 11 | 0.01 | 7 | 0.05 | +http://sur.ly/bot.html |
| 23 | 8 | 0.01 | 0 | 0.00 | Windows 3.1 |
| 24 | 7 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
| 25 | 7 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 7 | 0.01 | 4 | 0.03 | +http://www.exabot.com/go/robot |
| 27 | 6 | 0.01 | 3 | 0.02 | +http://www.findxbot.com |
| 28 | 4 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/Backlink-Check... |
| 29 | 3 | 0.00 | 1 | 0.01 | Windows CE |
| 30 | 2 | 0.00 | 2 | 0.01 | Linux [unknown version] |
| 31 | 2 | 0.00 | 1 | 0.01 | Windows 95 |
| 32 | 1 | 0.00 | 1 | 0.01 | J2ME/MIDP |
