| Used Operating Systems |
| 1 | 24194 | 42.91 | 150 | 1.18 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 12031 | 21.34 | 723 | 5.69 | Windows NT |
| 3 | 8590 | 15.23 | 7401 | 58.20 | +http://ahrefs.com/robot/ |
| 4 | 4661 | 8.27 | 3756 | 29.54 | +http://www.baidu.com/search/spider.html |
| 5 | 3702 | 6.57 | 11 | 0.09 | +http://www.warebay.com/bot.html |
| 6 | 1313 | 2.33 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 426 | 0.76 | 192 | 1.51 | +http://www.bing.com/bingbot.htm |
| 8 | 250 | 0.44 | 1 | 0.01 | Linux [unknown version] |
| 9 | 234 | 0.42 | 86 | 0.68 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 222 | 0.39 | 103 | 0.81 | +http://www.google.com/bot.html |
| 11 | 184 | 0.33 | 63 | 0.50 | +http://yandex.com/bots |
| 12 | 135 | 0.24 | 58 | 0.46 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 84 | 0.15 | 16 | 0.13 | +http://www.semrush.com/bot.html |
| 14 | 83 | 0.15 | 78 | 0.61 | +http://www.xovibot.net/ |
| 15 | 60 | 0.11 | 23 | 0.18 | +http://www.linkdex.com/bots/ |
| 16 | 41 | 0.07 | 11 | 0.09 | +http://www.exabot.com/go/robot |
| 17 | 34 | 0.06 | 5 | 0.04 | Windows 95 |
| 18 | 31 | 0.05 | 3 | 0.02 | Windows 98 |
| 19 | 24 | 0.04 | 2 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 20 | 18 | 0.03 | 16 | 0.13 | +http://www.uptime.com/uptimebot |
| 21 | 14 | 0.02 | 2 | 0.02 | Windows CE |
| 22 | 14 | 0.02 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 23 | 12 | 0.02 | 2 | 0.02 | Windows 3.1 |
| 24 | 8 | 0.01 | 1 | 0.01 | Windows 2000 |
| 25 | 7 | 0.01 | 1 | 0.01 | crawler@mixrank.com |
| 26 | 4 | 0.01 | 3 | 0.02 | Windows XP |
| 27 | 2 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 28 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 29 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 30 | 2 | 0.00 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 1 | 0.00 | 1 | 0.01 | X11 |
