| Used Operating Systems |
| 1 | 8882 | 44.79 | 3881 | 55.89 | Windows NT |
| 2 | 5428 | 27.37 | 135 | 1.94 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 2302 | 11.61 | 2124 | 30.59 | +http://www.baidu.com/search/spider.html |
| 4 | 841 | 4.24 | 3 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 5 | 386 | 1.95 | 38 | 0.55 | Windows 98 |
| 6 | 360 | 1.82 | 154 | 2.22 | +http://www.google.com/bot.html |
| 7 | 300 | 1.51 | 20 | 0.29 | +http://yandex.com/bots |
| 8 | 298 | 1.50 | 151 | 2.17 | +http://www.bing.com/bingbot.htm |
| 9 | 192 | 0.97 | 68 | 0.98 | +http://www.linkdex.com/bots/ |
| 10 | 186 | 0.94 | 57 | 0.82 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 152 | 0.77 | 53 | 0.76 | help@moz.com |
| 12 | 84 | 0.42 | 31 | 0.45 | +http://www.exabot.com/go/robot |
| 13 | 64 | 0.32 | 60 | 0.86 | Windows 95 |
| 14 | 51 | 0.26 | 15 | 0.22 | +http://www.linkdex.com/about/bots/ |
| 15 | 39 | 0.20 | 17 | 0.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 39 | 0.20 | 16 | 0.23 | X11 |
| 17 | 25 | 0.13 | 3 | 0.04 | Linux [unknown version] |
| 18 | 22 | 0.11 | 9 | 0.13 | Android 2.3.5 |
| 19 | 18 | 0.09 | 3 | 0.04 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 20 | 17 | 0.09 | 9 | 0.13 | Linux i686 [unknown version] |
| 21 | 15 | 0.08 | 14 | 0.20 | Windows CE |
| 22 | 15 | 0.08 | 2 | 0.03 | http://crawler.sistrix.net/ |
| 23 | 13 | 0.07 | 13 | 0.19 | Windows 3.1 |
| 24 | 13 | 0.07 | 5 | 0.07 | MSIE 5.5; Windows NT 5.0 |
| 25 | 12 | 0.06 | 9 | 0.13 | Windows XP |
| 26 | 12 | 0.06 | 12 | 0.17 | ) - BrowseX (2.0.0 Windows |
| 27 | 9 | 0.05 | 9 | 0.13 | Auto; Windows |
| 28 | 9 | 0.05 | 9 | 0.13 | Windows ME |
| 29 | 6 | 0.03 | 6 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 30 | 5 | 0.03 | 4 | 0.06 | Windows 2000 |
| 31 | 4 | 0.02 | 0 | 0.00 | Trident/6.0; Windows NT 5.1; ZangoToolba... |
| 32 | 3 | 0.02 | 0 | 0.00 | Win32 |
| 33 | 3 | 0.02 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 34 | 3 | 0.02 | 2 | 0.03 | PPC Mac OS X Mach-O |
| 35 | 2 | 0.01 | 1 | 0.01 | Macintosh PPC |
| 36 | 2 | 0.01 | 1 | 0.01 | AmigaOS4.0 |
| 37 | 2 | 0.01 | 2 | 0.03 | Trident/6.0; Windows NT 6.0; Alexa Toolb... |
| 38 | 2 | 0.01 | 0 | 0.00 | Trident/6.0; Windows 98; Crazy Browser 6... |
| 39 | 2 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 40 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 41 | 1 | 0.01 | 0 | 0.00 | http://www.entireweb.com/about/search_te... |
| 42 | 1 | 0.01 | 1 | 0.01 | Windows |
| 43 | 1 | 0.01 | 0 | 0.00 | +http://www.netseer.com/crawler.html; cr... |
| 44 | 1 | 0.01 | 1 | 0.01 | Intel Mac OS X |
| 45 | 1 | 0.01 | 1 | 0.01 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 46 | 1 | 0.01 | 0 | 0.00 | +http://sp.ask.com/docs/about/tech_crawl... |
| 47 | 1 | 0.01 | 1 | 0.01 | +http://bixolabs.com/crawler/general; cr... |
| 48 | 1 | 0.01 | 1 | 0.01 | Website Thumbnail Generator; +http://web... |
| 49 | 1 | 0.01 | 1 | 0.01 | Windows Phone OS 7.5 |
| 50 | 1 | 0.01 | 1 | 0.01 | +http://about.depspid.net |
| 51 | 1 | 0.01 | 0 | 0.00 | +http://page2rss.com/ |
