| Used Operating Systems |
| 1 | 9709 | 78.05 | 120 | 6.07 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 1465 | 11.78 | 1240 | 62.72 | +http://www.baidu.com/search/spider.html |
| 3 | 578 | 4.65 | 297 | 15.02 | Windows NT |
| 4 | 217 | 1.74 | 101 | 5.11 | +http://www.google.com/bot.html |
| 5 | 191 | 1.54 | 89 | 4.50 | +http://www.bing.com/bingbot.htm |
| 6 | 111 | 0.89 | 31 | 1.57 | +http://www.linkdex.com/bots/ |
| 7 | 45 | 0.36 | 21 | 1.06 | +http://ahrefs.com/robot/ |
| 8 | 26 | 0.21 | 13 | 0.66 | Windows 98 |
| 9 | 24 | 0.19 | 18 | 0.91 | Windows 95 |
| 10 | 18 | 0.14 | 9 | 0.46 | +http://yandex.com/bots |
| 11 | 14 | 0.11 | 5 | 0.25 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 8 | 0.06 | 6 | 0.30 | ) - BrowseX (2.0.0 Windows |
| 13 | 7 | 0.06 | 7 | 0.35 | Windows CE |
| 14 | 6 | 0.05 | 4 | 0.20 | Auto; Windows |
| 15 | 5 | 0.04 | 2 | 0.10 | Windows XP |
| 16 | 4 | 0.03 | 4 | 0.20 | Windows 2000 |
| 17 | 4 | 0.03 | 3 | 0.15 | Windows ME |
| 18 | 3 | 0.02 | 3 | 0.15 | Windows 3.1 |
| 19 | 2 | 0.02 | 2 | 0.10 | +info@netcraft.com |
| 20 | 2 | 0.02 | 1 | 0.05 | X11 |
| 21 | 1 | 0.01 | 1 | 0.05 | MSIE 5.5; Windows NT 4.0 |
