| Used Operating Systems |
| 1 | 151741 | 73.04 | 5817 | 46.68 | Windows NT |
| 2 | 23284 | 11.21 | 1879 | 15.08 | +http://www.bing.com/bingbot.htm |
| 3 | 7986 | 3.84 | 1097 | 8.80 | +http://www.google.com/bot.html |
| 4 | 5991 | 2.88 | 145 | 1.16 | +http://yandex.com/bots |
| 5 | 5125 | 2.47 | 135 | 1.08 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 4315 | 2.08 | 243 | 1.95 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 2937 | 1.41 | 2259 | 18.13 | +http://www.baidu.com/search/spider.html |
| 8 | 1667 | 0.80 | 3 | 0.02 | http://crawler.sistrix.net/ |
| 9 | 1519 | 0.73 | 395 | 3.17 | +http://www.easou.com/search/spider.html |
| 10 | 560 | 0.27 | 109 | 0.87 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 532 | 0.26 | 118 | 0.95 | help@moz.com |
| 12 | 505 | 0.24 | 99 | 0.79 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 307 | 0.15 | 1 | 0.01 | Intel Mac OS X 10.4 |
| 14 | 298 | 0.14 | 16 | 0.13 | Windows 98 |
| 15 | 222 | 0.11 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 16 | 115 | 0.06 | 20 | 0.16 | +http://www.exabot.com/go/robot |
| 17 | 106 | 0.05 | 1 | 0.01 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 18 | 55 | 0.03 | 5 | 0.04 | +http://www.profound.net/urlappendbot.ht... |
| 19 | 51 | 0.02 | 10 | 0.08 | X11 |
| 20 | 49 | 0.02 | 1 | 0.01 | Windows 90 |
| 21 | 42 | 0.02 | 3 | 0.02 | Intel Mac OS X 10.6 |
| 22 | 41 | 0.02 | 1 | 0.01 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 23 | 34 | 0.02 | 2 | 0.02 | +http://u12files.com/ |
| 24 | 33 | 0.02 | 17 | 0.14 | +http://www.proximic.com/info/spider.php |
| 25 | 29 | 0.01 | 1 | 0.01 | +http://p4load.com/ |
| 26 | 27 | 0.01 | 16 | 0.13 | Windows 95 |
| 27 | 24 | 0.01 | 9 | 0.07 | Android 2.3.5 |
| 28 | 22 | 0.01 | 13 | 0.10 | +http://ahrefs.com/robot/ |
| 29 | 16 | 0.01 | 0 | 0.00 | Win32 |
| 30 | 16 | 0.01 | 2 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 31 | 14 | 0.01 | 2 | 0.02 | Windows 99 |
| 32 | 14 | 0.01 | 8 | 0.06 | +http://www.grapeshot.co.uk/crawler.php |
| 33 | 13 | 0.01 | 0 | 0.00 | http://desktop.google.com/ |
| 34 | 12 | 0.01 | 4 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 35 | 6 | 0.00 | 4 | 0.03 | Windows 2000 |
| 36 | 6 | 0.00 | 2 | 0.02 | MSIE 5.5; Windows 95 |
| 37 | 4 | 0.00 | 2 | 0.02 | Auto; Windows |
| 38 | 4 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 39 | 4 | 0.00 | 1 | 0.01 | Windows XP |
| 40 | 4 | 0.00 | 2 | 0.02 | Windows 3.1 |
| 41 | 4 | 0.00 | 2 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 42 | 3 | 0.00 | 1 | 0.01 | Windows CE |
| 43 | 3 | 0.00 | 2 | 0.02 | +http://www.loadtime.net/bot.html |
| 44 | 3 | 0.00 | 3 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 45 | 2 | 0.00 | 1 | 0.01 | +http://www.netseer.com/crawler.html; cr... |
| 46 | 2 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 47 | 2 | 0.00 | 0 | 0.00 | iPhone |
| 48 | 2 | 0.00 | 1 | 0.01 | Windows ME |
| 49 | 2 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 50 | 2 | 0.00 | 2 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 51 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 52 | 2 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 53 | 1 | 0.00 | 1 | 0.01 | +http://www.yesup.net/bot.html |
| 54 | 1 | 0.00 | 1 | 0.01 | +http://tweetmeme.com/ |
| 55 | 1 | 0.00 | 0 | 0.00 | Linux 2.4.x |
