| Used Operating Systems |
| 1 | 3962 | 31.26 | 1945 | 50.01 | Windows NT |
| 2 | 3178 | 25.07 | 118 | 3.03 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 2489 | 19.64 | 55 | 1.41 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 1073 | 8.47 | 625 | 16.07 | +http://ahrefs.com/robot/ |
| 5 | 638 | 5.03 | 532 | 13.68 | +http://www.baidu.com/search/spider.html |
| 6 | 333 | 2.63 | 98 | 2.52 | +http://yandex.com/bots |
| 7 | 179 | 1.41 | 139 | 3.57 | Windows 95 |
| 8 | 128 | 1.01 | 35 | 0.90 | +http://www.bing.com/bingbot.htm |
| 9 | 122 | 0.96 | 35 | 0.90 | Windows 98 |
| 10 | 115 | 0.91 | 33 | 0.85 | +http://www.google.com/bot.html |
| 11 | 89 | 0.70 | 34 | 0.87 | +http://www.linkdex.com/bots/ |
| 12 | 42 | 0.33 | 35 | 0.90 | MSIE 5.5; Windows NT 5.0 |
| 13 | 41 | 0.32 | 27 | 0.69 | Windows ME |
| 14 | 35 | 0.28 | 27 | 0.69 | Windows CE |
| 15 | 34 | 0.27 | 7 | 0.18 | Windows XP |
| 16 | 34 | 0.27 | 28 | 0.72 | ) - BrowseX (2.0.0 Windows |
| 17 | 31 | 0.24 | 24 | 0.62 | Windows 3.1 |
| 18 | 30 | 0.24 | 2 | 0.05 | +http://filterdb.iss.net/crawler/ |
| 19 | 29 | 0.23 | 27 | 0.69 | Windows 2000 |
| 20 | 26 | 0.21 | 22 | 0.57 | MSIE 5.5; Windows NT 4.0 |
| 21 | 20 | 0.16 | 19 | 0.49 | Auto; Windows |
| 22 | 12 | 0.09 | 6 | 0.15 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 8 | 0.06 | 4 | 0.10 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 24 | 8 | 0.06 | 2 | 0.05 | +http://downloadg5.com |
| 25 | 6 | 0.05 | 2 | 0.05 | http://help.yahoo.com/help/us/ysearch/sl... |
| 26 | 3 | 0.02 | 3 | 0.08 | +info@netcraft.com |
| 27 | 2 | 0.02 | 2 | 0.05 | Linux i686 [unknown version] |
| 28 | 2 | 0.02 | 1 | 0.03 | Android 2.3.5 |
| 29 | 2 | 0.02 | 1 | 0.03 | +http://gimme60.com |
| 30 | 2 | 0.02 | 1 | 0.03 | +http://advbot.org/bot.html |
| 31 | 1 | 0.01 | 0 | 0.00 | X11 |
