| Used Operating Systems |
| 1 | 11221 | 78.88 | 1889 | 49.30 | Windows NT |
| 2 | 1476 | 10.38 | 1399 | 36.51 | +http://www.baidu.com/search/spider.html |
| 3 | 615 | 4.32 | 166 | 4.33 | +http://www.bing.com/bingbot.htm |
| 4 | 351 | 2.47 | 184 | 4.80 | +http://www.google.com/bot.html |
| 5 | 120 | 0.84 | 39 | 1.02 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 103 | 0.72 | 58 | 1.51 | +http://yandex.com/bots |
| 7 | 49 | 0.34 | 1 | 0.03 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 41 | 0.29 | 14 | 0.37 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 32 | 0.22 | 3 | 0.08 | +http://ahrefs.com/robot/ |
| 10 | 26 | 0.18 | 8 | 0.21 | X11 |
| 11 | 21 | 0.15 | 10 | 0.26 | +http://help.coccoc.com/ |
| 12 | 20 | 0.14 | 2 | 0.05 | +http://www.warebay.com/bot.html |
| 13 | 18 | 0.13 | 4 | 0.10 | http://www.opensiteexplorer.org/dotbot, ... |
| 14 | 16 | 0.11 | 8 | 0.21 | +http://duckduckgo.com |
| 15 | 12 | 0.08 | 4 | 0.10 | Windows XP |
| 16 | 9 | 0.06 | 3 | 0.08 | Windows CE |
| 17 | 8 | 0.06 | 2 | 0.05 | Android 2.3.5 |
| 18 | 8 | 0.06 | 4 | 0.10 | Windows 98 |
| 19 | 6 | 0.04 | 5 | 0.13 | Linux [unknown version] |
| 20 | 6 | 0.04 | 2 | 0.05 | Windows 95 |
| 21 | 6 | 0.04 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 22 | 6 | 0.04 | 3 | 0.08 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 5 | 0.04 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 24 | 4 | 0.03 | 2 | 0.05 | +http://www.netseer.com/crawler.html; cr... |
| 25 | 4 | 0.03 | 1 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 26 | 4 | 0.03 | 3 | 0.08 | Linux i686 [unknown version] |
| 27 | 4 | 0.03 | 1 | 0.03 | +https://www.lipperhey.com/en/about/ |
| 28 | 4 | 0.03 | 2 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 29 | 4 | 0.03 | 4 | 0.10 | Linux i586 [unknown version] |
| 30 | 3 | 0.02 | 1 | 0.03 | Windows 2000 |
| 31 | 3 | 0.02 | 1 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 32 | 3 | 0.02 | 1 | 0.03 | +http://megaindex.com/crawler |
| 33 | 3 | 0.02 | 1 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 34 | 2 | 0.01 | 0 | 0.00 | documents; +http://docs.google.com |
| 35 | 2 | 0.01 | 2 | 0.05 | http://nmap.org/book/nse.html |
| 36 | 2 | 0.01 | 1 | 0.03 | +info@netcraft.com |
| 37 | 2 | 0.01 | 2 | 0.05 | +http://domainsigma.com/robot |
| 38 | 1 | 0.01 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 39 | 1 | 0.01 | 0 | 0.00 | apps-presentations; +http://docs.google.... |
| 40 | 1 | 0.01 | 1 | 0.03 | Windows 3.1 |
| 41 | 1 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 42 | 1 | 0.01 | 1 | 0.03 | +http://domainmacro.com |
| 43 | 1 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
