| Used Operating Systems |
| 1 | 10136 | 53.03 | 7689 | 85.24 | +http://ahrefs.com/robot/ |
| 2 | 2460 | 12.87 | 41 | 0.45 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 2050 | 10.72 | 550 | 6.10 | Windows NT |
| 4 | 2033 | 10.64 | 41 | 0.45 | http://mj12bot.com/ |
| 5 | 886 | 4.64 | 228 | 2.53 | +http://www.bing.com/bingbot.htm |
| 6 | 614 | 3.21 | 98 | 1.09 | +http://www.google.com/bot.html |
| 7 | 374 | 1.96 | 101 | 1.12 | +http://yandex.com/bots |
| 8 | 183 | 0.96 | 137 | 1.52 | +http://www.baidu.com/search/spider.html |
| 9 | 100 | 0.52 | 30 | 0.33 | Windows XP |
| 10 | 56 | 0.29 | 19 | 0.21 | Windows 98 |
| 11 | 48 | 0.25 | 18 | 0.20 | +http://www.linkdex.com/bots/ |
| 12 | 39 | 0.20 | 12 | 0.13 | Windows 95 |
| 13 | 17 | 0.09 | 4 | 0.04 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 16 | 0.08 | 3 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 14 | 0.07 | 4 | 0.04 | Auto; Windows |
| 16 | 12 | 0.06 | 5 | 0.06 | Windows CE |
| 17 | 12 | 0.06 | 4 | 0.04 | Windows ME |
| 18 | 10 | 0.05 | 4 | 0.04 | Windows 3.1 |
| 19 | 10 | 0.05 | 6 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 20 | 8 | 0.04 | 5 | 0.06 | Windows 2000 |
| 21 | 8 | 0.04 | 2 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 22 | 7 | 0.04 | 5 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 23 | 7 | 0.04 | 4 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 24 | 4 | 0.02 | 1 | 0.01 | https://www.dataprovider.com/spider/ |
| 25 | 4 | 0.02 | 4 | 0.04 | +http://www.xovibot.net/ |
| 26 | 3 | 0.02 | 3 | 0.03 | +info@netcraft.com |
| 27 | 2 | 0.01 | 2 | 0.02 | Linux [unknown version] |
| 28 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
