| Used Operating Systems |
| 1 | 56544 | 82.32 | 399 | 10.41 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7332 | 10.67 | 1877 | 48.98 | Windows NT |
| 3 | 1274 | 1.85 | 293 | 7.65 | +http://ahrefs.com/robot/ |
| 4 | 1024 | 1.49 | 214 | 5.58 | +http://www.linkdex.com/bots/ |
| 5 | 603 | 0.88 | 275 | 7.18 | +http://www.google.com/bot.html |
| 6 | 480 | 0.70 | 156 | 4.07 | +http://www.bing.com/bingbot.htm |
| 7 | 349 | 0.51 | 280 | 7.31 | +http://www.baidu.com/search/spider.html |
| 8 | 180 | 0.26 | 77 | 2.01 | Windows 95 |
| 9 | 177 | 0.26 | 32 | 0.84 | +http://yandex.com/bots |
| 10 | 139 | 0.20 | 9 | 0.23 | Windows 98 |
| 11 | 86 | 0.13 | 43 | 1.12 | +http://www.meanpath.com/meanpathbot.htm... |
| 12 | 56 | 0.08 | 26 | 0.68 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 48 | 0.07 | 4 | 0.10 | +http://OpenLinkProfiler.org/bot |
| 14 | 46 | 0.07 | 0 | 0.00 | Windows XP |
| 15 | 42 | 0.06 | 20 | 0.52 | Windows CE |
| 16 | 41 | 0.06 | 19 | 0.50 | ) - BrowseX (2.0.0 Windows |
| 17 | 36 | 0.05 | 17 | 0.44 | Windows ME |
| 18 | 34 | 0.05 | 17 | 0.44 | Windows 2000 |
| 19 | 32 | 0.05 | 20 | 0.52 | MSIE 5.5; Windows NT 4.0 |
| 20 | 30 | 0.04 | 18 | 0.47 | MSIE 5.5; Windows NT 5.0 |
| 21 | 22 | 0.03 | 2 | 0.05 | crawler@mixrank.com |
| 22 | 22 | 0.03 | 14 | 0.37 | Auto; Windows |
| 23 | 22 | 0.03 | 1 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 24 | 22 | 0.03 | 2 | 0.05 | +http://www.profound.net/domainappender |
| 25 | 19 | 0.03 | 10 | 0.26 | Windows 3.1 |
| 26 | 12 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 27 | 6 | 0.01 | 0 | 0.00 | X11 |
| 28 | 5 | 0.01 | 5 | 0.13 | Linux i686 [unknown version] |
| 29 | 4 | 0.01 | 2 | 0.05 | +info@netcraft.com |
| 30 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 31 | 2 | 0.00 | 0 | 0.00 | Android 2.3.5 |
