| Used Operating Systems |
| 1 | 41731 | 67.37 | 357 | 4.24 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 13556 | 21.89 | 4716 | 55.98 | Windows NT |
| 3 | 2320 | 3.75 | 1744 | 20.70 | +http://www.baidu.com/search/spider.html |
| 4 | 1135 | 1.83 | 595 | 7.06 | +http://www.google.com/bot.html |
| 5 | 1048 | 1.69 | 6 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 6 | 562 | 0.91 | 276 | 3.28 | +http://www.bing.com/bingbot.htm |
| 7 | 286 | 0.46 | 77 | 0.91 | +http://www.linkdex.com/bots/ |
| 8 | 271 | 0.44 | 185 | 2.20 | Windows 95 |
| 9 | 199 | 0.32 | 38 | 0.45 | Windows 98 |
| 10 | 160 | 0.26 | 36 | 0.43 | +http://yandex.com/bots |
| 11 | 103 | 0.17 | 74 | 0.88 | +http://ahrefs.com/robot/ |
| 12 | 59 | 0.10 | 14 | 0.17 | X11 |
| 13 | 59 | 0.10 | 39 | 0.46 | MSIE 5.5; Windows NT 4.0 |
| 14 | 51 | 0.08 | 32 | 0.38 | MSIE 5.5; Windows NT 5.0 |
| 15 | 45 | 0.07 | 36 | 0.43 | Windows CE |
| 16 | 45 | 0.07 | 34 | 0.40 | Windows 3.1 |
| 17 | 43 | 0.07 | 29 | 0.34 | Windows 2000 |
| 18 | 41 | 0.07 | 26 | 0.31 | Windows ME |
| 19 | 39 | 0.06 | 6 | 0.07 | Windows XP |
| 20 | 37 | 0.06 | 27 | 0.32 | Auto; Windows |
| 21 | 37 | 0.06 | 27 | 0.32 | ) - BrowseX (2.0.0 Windows |
| 22 | 34 | 0.05 | 9 | 0.11 | http://help.yahoo.com/help/us/ysearch/sl... |
| 23 | 20 | 0.03 | 10 | 0.12 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 12 | 0.02 | 4 | 0.05 | Android 2.3.5 |
| 25 | 12 | 0.02 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 26 | 9 | 0.01 | 9 | 0.11 | Linux i686 [unknown version] |
| 27 | 8 | 0.01 | 4 | 0.05 | http://www.opensiteexplorer.org/dotbot, ... |
| 28 | 7 | 0.01 | 7 | 0.08 | Linux [unknown version] |
| 29 | 4 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 30 | 2 | 0.00 | 1 | 0.01 | PPC Mac OS X Mach-O |
| 31 | 2 | 0.00 | 2 | 0.02 | WinHttp.WinHttpRequest.5 |
| 32 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 33 | 1 | 0.00 | 1 | 0.01 | Linux i586 [unknown version] |
