| Used Operating Systems |
| 1 | 12784 | 38.73 | 244 | 3.71 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5981 | 18.12 | 1754 | 26.70 | +http://www.baidu.com/search/spider.html |
| 3 | 5971 | 18.09 | 1669 | 25.40 | Windows NT |
| 4 | 3642 | 11.04 | 1977 | 30.09 | +http://www.google.com/bot.html |
| 5 | 1809 | 5.48 | 390 | 5.94 | +http://www.bing.com/bingbot.htm |
| 6 | 510 | 1.55 | 50 | 0.76 | +http://yandex.com/bots |
| 7 | 378 | 1.15 | 88 | 1.34 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 314 | 0.95 | 99 | 1.51 | +http://www.linkdex.com/bots/ |
| 9 | 304 | 0.92 | 77 | 1.17 | +http://ahrefs.com/robot/ |
| 10 | 290 | 0.88 | 3 | 0.05 | http://crawler.007ac9.net/ |
| 11 | 259 | 0.78 | 31 | 0.47 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 163 | 0.49 | 16 | 0.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 82 | 0.25 | 27 | 0.41 | +http://www.exabot.com/go/robot |
| 14 | 61 | 0.18 | 21 | 0.32 | Windows 95 |
| 15 | 53 | 0.16 | 15 | 0.23 | MSIE 5.5; Windows NT 5.0 |
| 16 | 49 | 0.15 | 12 | 0.18 | Windows 98 |
| 17 | 33 | 0.10 | 1 | 0.02 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 18 | 24 | 0.07 | 2 | 0.03 | +http://www.netseer.com/crawler.html; cr... |
| 19 | 23 | 0.07 | 1 | 0.02 | J2ME/MIDP |
| 20 | 21 | 0.06 | 7 | 0.11 | Windows XP |
| 21 | 20 | 0.06 | 10 | 0.15 | http://crawler.sistrix.net/ |
| 22 | 20 | 0.06 | 4 | 0.06 | +http://downloaflare.biz |
| 23 | 19 | 0.06 | 1 | 0.02 | Linux [unknown version] |
| 24 | 18 | 0.05 | 6 | 0.09 | ) - BrowseX (2.0.0 Windows |
| 25 | 15 | 0.05 | 2 | 0.03 | Linux i686 [unknown version] |
| 26 | 14 | 0.04 | 2 | 0.03 | +http://overx50.com |
| 27 | 14 | 0.04 | 5 | 0.08 | +http://help.coccoc.com/ |
| 28 | 12 | 0.04 | 4 | 0.06 | Windows ME |
| 29 | 10 | 0.03 | 2 | 0.03 | +http://getdownload.ws |
| 30 | 10 | 0.03 | 4 | 0.06 | +info@netcraft.com |
| 31 | 9 | 0.03 | 3 | 0.05 | Windows 2000 |
| 32 | 8 | 0.02 | 3 | 0.05 | Windows 3.1 |
| 33 | 8 | 0.02 | 4 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 34 | 8 | 0.02 | 4 | 0.06 | +http://fulltext.sblog.cz/ |
| 35 | 6 | 0.02 | 2 | 0.03 | Auto; Windows |
| 36 | 6 | 0.02 | 3 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 37 | 6 | 0.02 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 38 | 5 | 0.02 | 3 | 0.05 | +http://www.xovibot.net/ |
| 39 | 4 | 0.01 | 1 | 0.02 | http://www.lipperhey.com/ |
| 40 | 4 | 0.01 | 2 | 0.03 | Windows CE |
| 41 | 4 | 0.01 | 4 | 0.06 | +http://pmoz.info/doc/botinfo.htm |
| 42 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 43 | 4 | 0.01 | 2 | 0.03 | +http://botw.org |
| 44 | 3 | 0.01 | 3 | 0.05 | Intel Mac OS X 10.4 |
| 45 | 3 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 46 | 3 | 0.01 | 3 | 0.05 | Android 2.3.5 |
| 47 | 3 | 0.01 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 48 | 3 | 0.01 | 2 | 0.03 | X11 |
| 49 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 50 | 2 | 0.01 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 51 | 2 | 0.01 | 1 | 0.02 | +http://www.idmarch.org/bot.html |
| 52 | 2 | 0.01 | 2 | 0.03 | Linux i586 [unknown version] |
| 53 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 54 | 1 | 0.00 | 1 | 0.02 | +http://fb02itsscan.fh-muenster.de |
