| Used Operating Systems |
| 1 | 18385 | 54.58 | 5418 | 73.27 | Windows NT |
| 2 | 10064 | 29.88 | 126 | 1.70 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 1325 | 3.93 | 1191 | 16.11 | +http://www.baidu.com/search/spider.html |
| 4 | 880 | 2.61 | 21 | 0.28 | Windows 98 |
| 5 | 867 | 2.57 | 96 | 1.30 | +http://yandex.com/bots |
| 6 | 517 | 1.53 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 7 | 427 | 1.27 | 135 | 1.83 | +http://www.linkdex.com/about/bots/ |
| 8 | 376 | 1.12 | 145 | 1.96 | +http://www.bing.com/bingbot.htm |
| 9 | 236 | 0.70 | 82 | 1.11 | +http://www.google.com/bot.html |
| 10 | 107 | 0.32 | 16 | 0.22 | X11 |
| 11 | 101 | 0.30 | 26 | 0.35 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 87 | 0.26 | 32 | 0.43 | help@moz.com |
| 13 | 73 | 0.22 | 28 | 0.38 | +http://www.exabot.com/go/robot |
| 14 | 51 | 0.15 | 10 | 0.14 | Android 2.3.5 |
| 15 | 36 | 0.11 | 18 | 0.24 | Windows 95 |
| 16 | 30 | 0.09 | 2 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 17 | 18 | 0.05 | 8 | 0.11 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 15 | 0.04 | 6 | 0.08 | Windows 2000 |
| 19 | 9 | 0.03 | 5 | 0.07 | Windows 3.1 |
| 20 | 8 | 0.02 | 4 | 0.05 | http://crawler.sistrix.net/ |
| 21 | 8 | 0.02 | 2 | 0.03 | Windows Phone OS 7.5 |
| 22 | 6 | 0.02 | 4 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 23 | 6 | 0.02 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 24 | 5 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 25 | 4 | 0.01 | 1 | 0.01 | http://www.lipperhey.com/ |
| 26 | 4 | 0.01 | 2 | 0.03 | Windows CE |
| 27 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 28 | 4 | 0.01 | 1 | 0.01 | AOL 9.7; AOLBuild 4343.1028; Windows NT ... |
| 29 | 4 | 0.01 | 4 | 0.05 | Linux i686 [unknown version] |
| 30 | 3 | 0.01 | 0 | 0.00 | Win32 |
| 31 | 3 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 32 | 3 | 0.01 | 1 | 0.01 | Windows ME |
| 33 | 2 | 0.01 | 0 | 0.00 | Solaris 2.6.x |
| 34 | 2 | 0.01 | 1 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 35 | 2 | 0.01 | 1 | 0.01 | +http://www.linkpad.ru |
| 36 | 2 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 37 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 38 | 2 | 0.01 | 1 | 0.01 | SunOS |
| 39 | 2 | 0.01 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 40 | 2 | 0.01 | 1 | 0.01 | +http://fulltext.sblog.cz/ |
| 41 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 42 | 1 | 0.00 | 0 | 0.00 | Windows 92 |
| 43 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 44 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
