| Used Operating Systems |
| 1 | 12404 | 42.13 | 1251 | 39.69 | Windows NT |
| 2 | 7394 | 25.11 | 1046 | 33.19 | +http://www.baidu.com/search/spider.html |
| 3 | 7285 | 24.74 | 451 | 14.31 | http://help.yahoo.com/help/us/ysearch/sl... |
| 4 | 1496 | 5.08 | 161 | 5.11 | +http://www.google.com/bot.html |
| 5 | 294 | 1.00 | 65 | 2.06 | +http://yandex.com/bots |
| 6 | 132 | 0.45 | 43 | 1.36 | Windows 95 |
| 7 | 107 | 0.36 | 45 | 1.43 | Windows 98 |
| 8 | 73 | 0.25 | 9 | 0.29 | +http://ahrefs.com/robot/ |
| 9 | 50 | 0.17 | 2 | 0.06 | http://www.majestic12.co.uk/bot.php?+ |
| 10 | 37 | 0.13 | 12 | 0.38 | Windows ME |
| 11 | 25 | 0.08 | 9 | 0.29 | Windows CE |
| 12 | 24 | 0.08 | 5 | 0.16 | MSIE 5.5; Windows NT 5.0 |
| 13 | 22 | 0.07 | 22 | 0.70 | http://www.yodao.com/help/webmaster/spid... |
| 14 | 22 | 0.07 | 7 | 0.22 | +http://www.bing.com/bingbot.htm |
| 15 | 16 | 0.05 | 4 | 0.13 | Windows 3.1 |
| 16 | 13 | 0.04 | 5 | 0.16 | MSIE 5.5; Windows NT 4.0 |
| 17 | 12 | 0.04 | 6 | 0.19 | Windows 2000 |
| 18 | 12 | 0.04 | 1 | 0.03 | Windows XP |
| 19 | 8 | 0.03 | 1 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 20 | 6 | 0.02 | 2 | 0.06 | Auto; Windows |
| 21 | 4 | 0.01 | 2 | 0.06 | ezooms.bot@gmail.com |
| 22 | 4 | 0.01 | 2 | 0.06 | Linux i686 [unknown version] |
| 23 | 1 | 0.00 | 1 | 0.03 | +info@netcraft.com |
