| Used Operating Systems |
| 1 | 45661 | 46.58 | 347 | 2.82 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 18959 | 19.34 | 347 | 2.82 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 13472 | 13.74 | 4762 | 38.64 | Windows NT |
| 4 | 6126 | 6.25 | 4545 | 36.88 | +http://www.baidu.com/search/spider.html |
| 5 | 3649 | 3.72 | 153 | 1.24 | Windows 98 |
| 6 | 2570 | 2.62 | 1161 | 9.42 | +http://www.easou.com/search/spider.html |
| 7 | 2396 | 2.44 | 51 | 0.41 | +http://OpenLinkProfiler.org/bot |
| 8 | 964 | 0.98 | 376 | 3.05 | +http://www.bing.com/bingbot.htm |
| 9 | 946 | 0.97 | 198 | 1.61 | +http://www.google.com/bot.html |
| 10 | 621 | 0.63 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 11 | 608 | 0.62 | 5 | 0.04 | +http://www.warebay.com/bot.html |
| 12 | 541 | 0.55 | 49 | 0.40 | +http://www.profound.net/urlappendbot.ht... |
| 13 | 474 | 0.48 | 38 | 0.31 | +http://yandex.com/bots |
| 14 | 401 | 0.41 | 114 | 0.93 | +http://www.linkdex.com/bots/ |
| 15 | 160 | 0.16 | 3 | 0.02 | +http://ahrefs.com/robot/ |
| 16 | 89 | 0.09 | 4 | 0.03 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 17 | 80 | 0.08 | 33 | 0.27 | X11 |
| 18 | 68 | 0.07 | 34 | 0.28 | +http://help.coccoc.com/ |
| 19 | 68 | 0.07 | 28 | 0.23 | +http://www.exabot.com/go/robot |
| 20 | 47 | 0.05 | 27 | 0.22 | Android 2.3.5 |
| 21 | 19 | 0.02 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 22 | 17 | 0.02 | 17 | 0.14 | Windows 95 |
| 23 | 14 | 0.01 | 4 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 24 | 10 | 0.01 | 0 | 0.00 | http://help.yahoo.com/help/us/ysearch/sl... |
| 25 | 10 | 0.01 | 1 | 0.01 | +http://www.linkpad.ru |
| 26 | 7 | 0.01 | 7 | 0.06 | +http://wmaid.com/explore/ |
| 27 | 6 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 28 | 5 | 0.01 | 1 | 0.01 | +http://p4load.com/ |
| 29 | 4 | 0.00 | 4 | 0.03 | Windows 3.1 |
| 30 | 3 | 0.00 | 1 | 0.01 | +http://getdownload.ws |
| 31 | 3 | 0.00 | 1 | 0.01 | +http://prlog.ru/ |
| 32 | 3 | 0.00 | 3 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 33 | 2 | 0.00 | 0 | 0.00 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 34 | 2 | 0.00 | 2 | 0.02 | Windows 2000 |
| 35 | 2 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 36 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 37 | 1 | 0.00 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 38 | 1 | 0.00 | 0 | 0.00 | Windows XP |
| 39 | 1 | 0.00 | 1 | 0.01 | Windows ME |
| 40 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 41 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 42 | 1 | 0.00 | 1 | 0.01 | +http://www.wmtips.com/tools/ |
| 43 | 1 | 0.00 | 0 | 0.00 | Trident/6.0; Windows NT 5.0; Zune 8.5.26... |
| 44 | 1 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 45 | 1 | 0.00 | 1 | 0.01 | Trident/6.0; Windows 98; InfoPath.1; MSN... |
