| Used Operating Systems |
| 1 | 13893 | 84.46 | 4124 | 70.92 | Windows NT |
| 2 | 832 | 5.06 | 809 | 13.91 | +http://www.baidu.com/search/spider.html |
| 3 | 438 | 2.66 | 285 | 4.90 | +http://www.google.com/bot.html |
| 4 | 431 | 2.62 | 159 | 2.73 | +http://www.bing.com/bingbot.htm |
| 5 | 108 | 0.66 | 100 | 1.72 | Windows 95 |
| 6 | 92 | 0.56 | 24 | 0.41 | +http://yandex.com/bots |
| 7 | 85 | 0.52 | 36 | 0.62 | Windows 98 |
| 8 | 81 | 0.49 | 11 | 0.19 | +http://www.semrush.com/bot.html |
| 9 | 41 | 0.25 | 7 | 0.12 | +http://ahrefs.com/robot/ |
| 10 | 41 | 0.25 | 15 | 0.26 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 30 | 0.18 | 8 | 0.14 | X11 |
| 12 | 26 | 0.16 | 26 | 0.45 | Windows 3.1 |
| 13 | 25 | 0.15 | 25 | 0.43 | MSIE 5.5; Windows NT 5.0 |
| 14 | 23 | 0.14 | 22 | 0.38 | Windows CE |
| 15 | 23 | 0.14 | 22 | 0.38 | Windows ME |
| 16 | 21 | 0.13 | 21 | 0.36 | Auto; Windows |
| 17 | 19 | 0.12 | 7 | 0.12 | Windows XP |
| 18 | 19 | 0.12 | 19 | 0.33 | ) - BrowseX (2.0.0 Windows |
| 19 | 19 | 0.12 | 5 | 0.09 | http://www.majestic12.co.uk/bot.php?+ |
| 20 | 17 | 0.10 | 16 | 0.28 | MSIE 5.5; Windows NT 4.0 |
| 21 | 17 | 0.10 | 9 | 0.15 | +http://www.exabot.com/go/robot |
| 22 | 16 | 0.10 | 15 | 0.26 | Windows 2000 |
| 23 | 14 | 0.09 | 4 | 0.07 | Android |
| 24 | 14 | 0.09 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 25 | 12 | 0.07 | 6 | 0.10 | +http://www.meanpath.com/meanpathbot.htm... |
| 26 | 11 | 0.07 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 27 | 10 | 0.06 | 3 | 0.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 28 | 10 | 0.06 | 1 | 0.02 | +http://fulltext.sblog.cz/ |
| 29 | 8 | 0.05 | 2 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 30 | 7 | 0.04 | 1 | 0.02 | Android 2.3.5 |
| 31 | 6 | 0.04 | 2 | 0.03 | +http://www.linkdex.com/bots/ |
| 32 | 6 | 0.04 | 3 | 0.05 | +http://duckduckgo.com |
| 33 | 5 | 0.03 | 5 | 0.09 | +http://www.xovibot.net/ |
| 34 | 5 | 0.03 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 35 | 5 | 0.03 | 5 | 0.09 | +http://domainsigma.com/robot |
| 36 | 4 | 0.02 | 2 | 0.03 | +http://help.coccoc.com/ |
| 37 | 4 | 0.02 | 1 | 0.02 | +http://papijump.org |
| 38 | 4 | 0.02 | 1 | 0.02 | +http://g5files.net |
| 39 | 4 | 0.02 | 1 | 0.02 | +http://www.profound.net/domainappender |
| 40 | 3 | 0.02 | 1 | 0.02 | http://www.lipperhey.com/ |
| 41 | 3 | 0.02 | 2 | 0.03 | +info@netcraft.com |
| 42 | 3 | 0.02 | 1 | 0.02 | +http://www.seokicks.de/robot.html |
| 43 | 3 | 0.02 | 1 | 0.02 | Intel Mac OS X 10.6 |
| 44 | 2 | 0.01 | 1 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 45 | 2 | 0.01 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 46 | 2 | 0.01 | 1 | 0.02 | +http://www.linkpad.ru |
| 47 | 2 | 0.01 | 1 | 0.02 | +http://gimme60.com |
| 48 | 2 | 0.01 | 1 | 0.02 | +http://advbot.org/bot.html |
| 49 | 1 | 0.01 | 1 | 0.02 | Linux i586 [unknown version] |
