| Used Operating Systems |
| 1 | 17865 | 62.41 | 127 | 1.95 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5116 | 17.87 | 4201 | 64.35 | +http://www.baidu.com/search/spider.html |
| 3 | 1952 | 6.82 | 1169 | 17.91 | Windows NT |
| 4 | 965 | 3.37 | 21 | 0.32 | Windows XP |
| 5 | 761 | 2.66 | 269 | 4.12 | +http://www.bing.com/bingbot.htm |
| 6 | 700 | 2.45 | 293 | 4.49 | +http://www.google.com/bot.html |
| 7 | 309 | 1.08 | 69 | 1.06 | +http://www.linkdex.com/bots/ |
| 8 | 219 | 0.77 | 18 | 0.28 | +http://yandex.com/bots |
| 9 | 175 | 0.61 | 73 | 1.12 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 148 | 0.52 | 61 | 0.93 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 40 | 0.14 | 19 | 0.29 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 39 | 0.14 | 39 | 0.60 | http://www.openfos.com |
| 13 | 39 | 0.14 | 38 | 0.58 | http://www.topicway.com |
| 14 | 33 | 0.12 | 2 | 0.03 | Linux i586 [unknown version] |
| 15 | 31 | 0.11 | 14 | 0.21 | http://www.bing.com/bingbot.htm |
| 16 | 26 | 0.09 | 13 | 0.20 | +http://duckduckgo.com |
| 17 | 25 | 0.09 | 4 | 0.06 | +http://fulltext.sblog.cz/ |
| 18 | 19 | 0.07 | 11 | 0.17 | +http://ahrefs.com/robot/ |
| 19 | 19 | 0.07 | 19 | 0.29 | Windows 95 |
| 20 | 18 | 0.06 | 15 | 0.23 | Windows 98 |
| 21 | 16 | 0.06 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 22 | 16 | 0.06 | 4 | 0.06 | +http://www.profound.net/domainappender |
| 23 | 15 | 0.05 | 1 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 24 | 14 | 0.05 | 1 | 0.02 | +http://megaindex.com/crawler |
| 25 | 10 | 0.03 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 7 | 0.02 | 6 | 0.09 | Auto; Windows |
| 27 | 7 | 0.02 | 6 | 0.09 | +info@netcraft.com |
| 28 | 4 | 0.01 | 4 | 0.06 | Windows 3.1 |
| 29 | 4 | 0.01 | 2 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 30 | 4 | 0.01 | 2 | 0.03 | +http://www.exabot.com/go/robot |
| 31 | 3 | 0.01 | 3 | 0.05 | Windows CE |
| 32 | 3 | 0.01 | 3 | 0.05 | Windows 2000 |
| 33 | 3 | 0.01 | 3 | 0.05 | Windows ME |
| 34 | 3 | 0.01 | 1 | 0.02 | +http://prlog.ru/ |
| 35 | 3 | 0.01 | 3 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 36 | 2 | 0.01 | 2 | 0.03 | http://nmap.org/book/nse.html |
| 37 | 2 | 0.01 | 1 | 0.02 | +http://www.privacyaware.org |
| 38 | 2 | 0.01 | 1 | 0.02 | http://www.botje.com/plukkie.htm |
| 39 | 2 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 40 | 2 | 0.01 | 1 | 0.02 | IPhone |
| 41 | 2 | 0.01 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 42 | 1 | 0.00 | 1 | 0.02 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 43 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 44 | 1 | 0.00 | 1 | 0.02 | +http://domainmacro.com |
| 45 | 1 | 0.00 | 1 | 0.02 | Linux i686 [unknown version] |
