| Used Operating Systems |
| 1 | 8354 | 66.56 | 145 | 8.11 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2142 | 17.07 | 141 | 7.88 | +http://www.bing.com/bingbot.htm |
| 3 | 798 | 6.36 | 754 | 42.15 | +http://ahrefs.com/robot/ |
| 4 | 590 | 4.70 | 205 | 11.46 | Windows NT |
| 5 | 473 | 3.77 | 441 | 24.65 | +http://www.baidu.com/search/spider.html |
| 6 | 40 | 0.32 | 2 | 0.11 | +http://yandex.com/bots |
| 7 | 29 | 0.23 | 4 | 0.22 | +http://www.google.com/bot.html |
| 8 | 21 | 0.17 | 17 | 0.95 | Windows 95 |
| 9 | 18 | 0.14 | 13 | 0.73 | Windows 98 |
| 10 | 16 | 0.13 | 6 | 0.34 | +http://www.exabot.com/go/robot |
| 11 | 12 | 0.10 | 12 | 0.67 | Windows CE |
| 12 | 10 | 0.08 | 10 | 0.56 | Auto; Windows |
| 13 | 10 | 0.08 | 4 | 0.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 9 | 0.07 | 7 | 0.39 | +http://www.semrush.com/bot.html |
| 15 | 8 | 0.06 | 8 | 0.45 | Windows ME |
| 16 | 6 | 0.05 | 6 | 0.34 | MSIE 5.5; Windows NT 5.0 |
| 17 | 4 | 0.03 | 3 | 0.17 | Windows XP |
| 18 | 4 | 0.03 | 4 | 0.22 | +info@netcraft.com |
| 19 | 3 | 0.02 | 3 | 0.17 | Windows 2000 |
| 20 | 2 | 0.02 | 2 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 21 | 2 | 0.02 | 2 | 0.11 | Windows 3.1 |
