| Used Operating Systems |
| 1 | 22731 | 45.55 | 1187 | 22.16 | Windows NT |
| 2 | 17376 | 34.82 | 119 | 2.22 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 4519 | 9.05 | 412 | 7.69 | +http://ahrefs.com/robot/ |
| 4 | 4004 | 8.02 | 3231 | 60.31 | +http://www.baidu.com/search/spider.html |
| 5 | 250 | 0.50 | 1 | 0.02 | Linux [unknown version] |
| 6 | 248 | 0.50 | 85 | 1.59 | +http://www.google.com/bot.html |
| 7 | 246 | 0.49 | 134 | 2.50 | +http://www.bing.com/bingbot.htm |
| 8 | 127 | 0.25 | 39 | 0.73 | +http://yandex.com/bots |
| 9 | 61 | 0.12 | 20 | 0.37 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 54 | 0.11 | 21 | 0.39 | +http://www.linkdex.com/bots/ |
| 11 | 54 | 0.11 | 20 | 0.37 | Windows XP |
| 12 | 49 | 0.10 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 13 | 43 | 0.09 | 17 | 0.32 | http://www.opensiteexplorer.org/dotbot, ... |
| 14 | 23 | 0.05 | 15 | 0.28 | Windows 95 |
| 15 | 23 | 0.05 | 8 | 0.15 | Windows 98 |
| 16 | 18 | 0.04 | 8 | 0.15 | +http://www.exabot.com/go/robot |
| 17 | 15 | 0.03 | 2 | 0.04 | http://nmap.org/book/nse.html |
| 18 | 12 | 0.02 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 19 | 10 | 0.02 | 6 | 0.11 | Windows ME |
| 20 | 9 | 0.02 | 5 | 0.09 | Windows 2000 |
| 21 | 9 | 0.02 | 5 | 0.09 | Auto; Windows |
| 22 | 6 | 0.01 | 6 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 23 | 6 | 0.01 | 3 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 24 | 4 | 0.01 | 2 | 0.04 | Windows 3.1 |
| 25 | 4 | 0.01 | 3 | 0.06 | ) - BrowseX (2.0.0 Windows |
| 26 | 3 | 0.01 | 2 | 0.04 | +info@netcraft.com |
| 27 | 2 | 0.00 | 2 | 0.04 | Windows CE |
| 28 | 1 | 0.00 | 1 | 0.02 | X11 |
| 29 | 1 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
