| Used Operating Systems |
| 1 | 3904 | 61.17 | 69 | 5.17 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 907 | 14.21 | 299 | 22.41 | Windows NT |
| 3 | 547 | 8.57 | 496 | 37.18 | +http://www.baidu.com/search/spider.html |
| 4 | 495 | 7.76 | 250 | 18.74 | +http://www.google.com/bot.html |
| 5 | 190 | 2.98 | 104 | 7.80 | +http://www.bing.com/bingbot.htm |
| 6 | 145 | 2.27 | 34 | 2.55 | +http://yandex.com/bots |
| 7 | 130 | 2.04 | 35 | 2.62 | +http://www.linkdex.com/bots/ |
| 8 | 17 | 0.27 | 9 | 0.67 | Windows 98 |
| 9 | 11 | 0.17 | 10 | 0.75 | Windows 95 |
| 10 | 8 | 0.13 | 7 | 0.52 | Windows 2000 |
| 11 | 5 | 0.08 | 4 | 0.30 | MSIE 5.5; Windows NT 4.0 |
| 12 | 4 | 0.06 | 3 | 0.22 | Auto; Windows |
| 13 | 4 | 0.06 | 4 | 0.30 | MSIE 5.5; Windows NT 5.0 |
| 14 | 4 | 0.06 | 3 | 0.22 | ) - BrowseX (2.0.0 Windows |
| 15 | 3 | 0.05 | 1 | 0.07 | Windows XP |
| 16 | 2 | 0.03 | 2 | 0.15 | Windows CE |
| 17 | 2 | 0.03 | 2 | 0.15 | Windows ME |
| 18 | 2 | 0.03 | 2 | 0.15 | Windows 3.1 |
| 19 | 1 | 0.02 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 20 | 1 | 0.02 | 0 | 0.00 | X11 |
