| Used Operating Systems |
| 1 | 30565 | 38.38 | 215 | 2.71 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 21584 | 27.10 | 271 | 3.41 | +http://ahrefs.com/robot/ |
| 3 | 17268 | 21.68 | 1415 | 17.83 | Windows NT |
| 4 | 8672 | 10.89 | 5526 | 69.63 | +http://www.baidu.com/search/spider.html |
| 5 | 668 | 0.84 | 237 | 2.99 | +http://www.bing.com/bingbot.htm |
| 6 | 483 | 0.61 | 101 | 1.27 | +http://yandex.com/bots |
| 7 | 311 | 0.39 | 141 | 1.78 | +http://www.google.com/bot.html |
| 8 | 46 | 0.06 | 10 | 0.13 | Windows 98 |
| 9 | 16 | 0.02 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 10 | 6 | 0.01 | 3 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 11 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 12 | 4 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 13 | 4 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 14 | 3 | 0.00 | 3 | 0.04 | +http://tobbot.com/ |
| 15 | 2 | 0.00 | 2 | 0.03 | Windows 2000 |
| 16 | 2 | 0.00 | 2 | 0.03 | http://nmap.org/book/nse.html |
| 17 | 2 | 0.00 | 2 | 0.03 | Linux [unknown version] |
| 18 | 2 | 0.00 | 2 | 0.03 | X11 |
| 19 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 20 | 1 | 0.00 | 1 | 0.01 | Windows CE |
| 21 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.4 |
| 22 | 1 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
