| Used Operating Systems |
| 1 | 18587 | 56.17 | 13810 | 71.73 | +http://www.baidu.com/search/spider.html |
| 2 | 3719 | 11.24 | 1967 | 10.22 | Windows NT |
| 3 | 2654 | 8.02 | 869 | 4.51 | +http://www.bing.com/bingbot.htm |
| 4 | 1247 | 3.77 | 723 | 3.76 | +http://www.google.com/bot.html |
| 5 | 1096 | 3.31 | 477 | 2.48 | http://help.yahoo.com/help/us/ysearch/sl... |
| 6 | 994 | 3.00 | 247 | 1.28 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 936 | 2.83 | 20 | 0.10 | +http://fulltext.sblog.cz/ |
| 8 | 812 | 2.45 | 513 | 2.66 | +http://ahrefs.com/robot/ |
| 9 | 746 | 2.25 | 200 | 1.04 | +http://yandex.com/bots |
| 10 | 548 | 1.66 | 2 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 11 | 398 | 1.20 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 12 | 387 | 1.17 | 108 | 0.56 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 220 | 0.66 | 22 | 0.11 | http://www.searchmetrics.com/en/searchme... |
| 14 | 147 | 0.44 | 73 | 0.38 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 74 | 0.22 | 33 | 0.17 | +http://www.easou.com/search/spider.html |
| 16 | 69 | 0.21 | 23 | 0.12 | Windows 95 |
| 17 | 56 | 0.17 | 25 | 0.13 | +http://www.exabot.com/go/robot |
| 18 | 51 | 0.15 | 10 | 0.05 | Windows 98 |
| 19 | 48 | 0.15 | 20 | 0.10 | +http://duckduckgo.com |
| 20 | 27 | 0.08 | 4 | 0.02 | Windows 3.1 |
| 21 | 23 | 0.07 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 22 | 18 | 0.05 | 6 | 0.03 | Windows 2000 |
| 23 | 17 | 0.05 | 17 | 0.09 | Linux i686 [unknown version] |
| 24 | 17 | 0.05 | 5 | 0.03 | +http://www.xovibot.net/ |
| 25 | 15 | 0.05 | 4 | 0.02 | Windows CE |
| 26 | 13 | 0.04 | 6 | 0.03 | +http://help.coccoc.com/ |
| 27 | 12 | 0.04 | 3 | 0.02 | Auto; Windows |
| 28 | 11 | 0.03 | 1 | 0.01 | Windows XP |
| 29 | 11 | 0.03 | 4 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 30 | 10 | 0.03 | 5 | 0.03 | http://crawler.sistrix.net/ |
| 31 | 10 | 0.03 | 5 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 9 | 0.03 | 3 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 33 | 8 | 0.02 | 2 | 0.01 | +http://downloadmine.biz |
| 34 | 8 | 0.02 | 2 | 0.01 | +http://trumpetsheetmusic.org |
| 35 | 8 | 0.02 | 2 | 0.01 | +http://mercedes-w123.net |
| 36 | 8 | 0.02 | 2 | 0.01 | +http://medialine-it.com |
| 37 | 8 | 0.02 | 4 | 0.02 | +http://botw.org |
| 38 | 8 | 0.02 | 3 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 39 | 7 | 0.02 | 7 | 0.04 | +http://pmoz.info/doc/botinfo.htm |
| 40 | 6 | 0.02 | 2 | 0.01 | Windows 9. |
| 41 | 6 | 0.02 | 6 | 0.03 | Unknown |
| 42 | 6 | 0.02 | 2 | 0.01 | +http://isdownload.biz |
| 43 | 5 | 0.02 | 0 | 0.00 | Linux [unknown version] |
| 44 | 4 | 0.01 | 0 | 0.00 | Android |
| 45 | 4 | 0.01 | 2 | 0.01 | +https://www.mojeek.com/bot.html |
| 46 | 4 | 0.01 | 2 | 0.01 | ScoutJet; +http://blekko.com/about/blekk... |
| 47 | 3 | 0.01 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 48 | 3 | 0.01 | 1 | 0.01 | +http://overx50.com |
| 49 | 3 | 0.01 | 2 | 0.01 | +http://gimme60.com |
| 50 | 2 | 0.01 | 2 | 0.01 | +http://fb02itsscan.fh-muenster.de |
| 51 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 52 | 2 | 0.01 | 2 | 0.01 | Windows Phone OS 7.5 |
| 53 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 54 | 1 | 0.00 | 1 | 0.01 | Win32 |
| 55 | 1 | 0.00 | 1 | 0.01 | https://help.yahoo.com/kb/mail/yahoo-lin... |
| 56 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
