| Used Operating Systems |
| 1 | 14580 | 31.00 | 160 | 1.70 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 11372 | 24.18 | 3572 | 37.89 | +http://ahrefs.com/robot/ |
| 3 | 6834 | 14.53 | 404 | 4.29 | +http://www.semrush.com/bot.html |
| 4 | 5944 | 12.64 | 1900 | 20.15 | Windows NT |
| 5 | 1907 | 4.05 | 1787 | 18.96 | +http://www.baidu.com/search/spider.html |
| 6 | 1756 | 3.73 | 368 | 3.90 | +http://yandex.com/bots |
| 7 | 1136 | 2.42 | 314 | 3.33 | +http://www.bing.com/bingbot.htm |
| 8 | 955 | 2.03 | 456 | 4.84 | +http://www.google.com/bot.html |
| 9 | 866 | 1.84 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 10 | 517 | 1.10 | 4 | 0.04 | +http://www.warebay.com/bot.html |
| 11 | 248 | 0.53 | 123 | 1.30 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 246 | 0.52 | 125 | 1.33 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 170 | 0.36 | 29 | 0.31 | Windows XP |
| 14 | 107 | 0.23 | 28 | 0.30 | +http://www.linkdex.com/bots/ |
| 15 | 54 | 0.11 | 39 | 0.41 | +http://www.xovibot.net/ |
| 16 | 52 | 0.11 | 22 | 0.23 | http://www.bing.com/bingbot.htm |
| 17 | 49 | 0.10 | 19 | 0.20 | Windows 95 |
| 18 | 49 | 0.10 | 11 | 0.12 | Windows 98 |
| 19 | 19 | 0.04 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 20 | 18 | 0.04 | 10 | 0.11 | +http://www.exabot.com/go/robot |
| 21 | 16 | 0.03 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 22 | 14 | 0.03 | 3 | 0.03 | X11 |
| 23 | 13 | 0.03 | 5 | 0.05 | Windows CE |
| 24 | 13 | 0.03 | 4 | 0.04 | http://www.opensiteexplorer.org/dotbot, ... |
| 25 | 9 | 0.02 | 2 | 0.02 | Windows 2000 |
| 26 | 9 | 0.02 | 0 | 0.00 | +http://corp.sputnik.ru/webmaster |
| 27 | 8 | 0.02 | 2 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 28 | 8 | 0.02 | 3 | 0.03 | Android 2.3.5 |
| 29 | 6 | 0.01 | 3 | 0.03 | http://www.botje.com/plukkie.htm |
| 30 | 6 | 0.01 | 3 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 6 | 0.01 | 3 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 32 | 6 | 0.01 | 3 | 0.03 | +http://fulltext.sblog.cz/ |
| 33 | 6 | 0.01 | 3 | 0.03 | +http://duckduckgo.com |
| 34 | 4 | 0.01 | 2 | 0.02 | Auto; Windows |
| 35 | 4 | 0.01 | 2 | 0.02 | +http://sur.ly/bot.html |
| 36 | 4 | 0.01 | 3 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 37 | 3 | 0.01 | 1 | 0.01 | +https://deusu.de/robot.html |
| 38 | 3 | 0.01 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 39 | 3 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 40 | 3 | 0.01 | 3 | 0.03 | Windows ME |
| 41 | 2 | 0.00 | 1 | 0.01 | J2ME/MIDP |
| 42 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 43 | 2 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 44 | 1 | 0.00 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 45 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
