| Used Operating Systems |
| 1 | 1681 | 27.71 | 1463 | 50.90 | +http://www.baidu.com/search/spider.html |
| 2 | 1638 | 27.00 | 589 | 20.49 | Windows NT |
| 3 | 919 | 15.15 | 195 | 6.78 | +http://yandex.com/bots |
| 4 | 487 | 8.03 | 177 | 6.16 | +http://www.bing.com/bingbot.htm |
| 5 | 373 | 6.15 | 122 | 4.24 | +http://www.google.com/bot.html |
| 6 | 368 | 6.07 | 123 | 4.28 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 285 | 4.70 | 104 | 3.62 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 77 | 1.27 | 23 | 0.80 | Windows 95 |
| 9 | 40 | 0.66 | 10 | 0.35 | Windows 98 |
| 10 | 30 | 0.49 | 9 | 0.31 | Windows XP |
| 11 | 28 | 0.46 | 2 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 12 | 26 | 0.43 | 2 | 0.07 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 15 | 0.25 | 7 | 0.24 | Windows 2000 |
| 14 | 12 | 0.20 | 6 | 0.21 | +http://ahrefs.com/robot/ |
| 15 | 12 | 0.20 | 6 | 0.21 | +http://duckduckgo.com |
| 16 | 9 | 0.15 | 3 | 0.10 | Windows CE |
| 17 | 9 | 0.15 | 3 | 0.10 | MSIE 5.5; Windows NT 4.0 |
| 18 | 8 | 0.13 | 4 | 0.14 | +http://www.meanpath.com/meanpathbot.htm... |
| 19 | 6 | 0.10 | 2 | 0.07 | Auto; Windows |
| 20 | 6 | 0.10 | 0 | 0.00 | Windows ME |
| 21 | 6 | 0.10 | 2 | 0.07 | MSIE 5.5; Windows NT 5.0 |
| 22 | 6 | 0.10 | 4 | 0.14 | +info@netcraft.com |
| 23 | 4 | 0.07 | 2 | 0.07 | Linux i686 [unknown version] |
| 24 | 4 | 0.07 | 4 | 0.14 | +http://tobbot.com/ |
| 25 | 3 | 0.05 | 3 | 0.10 | Linux [unknown version] |
| 26 | 3 | 0.05 | 1 | 0.03 | Windows 3.1 |
| 27 | 2 | 0.03 | 2 | 0.07 | http://nmap.org/book/nse.html |
| 28 | 2 | 0.03 | 2 | 0.07 | Intel Mac OS X 10.4 |
| 29 | 2 | 0.03 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 30 | 2 | 0.03 | 2 | 0.07 | X11 |
| 31 | 2 | 0.03 | 2 | 0.07 | +http://www.grapeshot.co.uk/crawler.php |
| 32 | 1 | 0.02 | 0 | 0.00 | Intel Mac OS X 10.6 |
