| Used Operating Systems |
| 1 | 18119 | 77.02 | 161 | 8.27 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 1961 | 8.34 | 1008 | 51.80 | Windows NT |
| 3 | 1625 | 6.91 | 377 | 19.37 | +http://www.baidu.com/search/spider.html |
| 4 | 830 | 3.53 | 150 | 7.71 | +http://www.google.com/bot.html |
| 5 | 390 | 1.66 | 131 | 6.73 | +http://www.bing.com/bingbot.htm |
| 6 | 142 | 0.60 | 1 | 0.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 7 | 126 | 0.54 | 34 | 1.75 | +http://www.linkdex.com/bots/ |
| 8 | 88 | 0.37 | 5 | 0.26 | Linux i686 [unknown version] |
| 9 | 50 | 0.21 | 20 | 1.03 | Windows 95 |
| 10 | 29 | 0.12 | 8 | 0.41 | +http://yandex.com/bots |
| 11 | 19 | 0.08 | 6 | 0.31 | Windows 98 |
| 12 | 18 | 0.08 | 6 | 0.31 | +http://www.meanpath.com/meanpathbot.htm... |
| 13 | 16 | 0.07 | 6 | 0.31 | Windows 3.1 |
| 14 | 15 | 0.06 | 0 | 0.00 | +http://www.xovibot.net/ |
| 15 | 13 | 0.06 | 3 | 0.15 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 13 | 0.06 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 17 | 8 | 0.03 | 2 | 0.10 | crawler@mixrank.com |
| 18 | 8 | 0.03 | 4 | 0.21 | MSIE 5.5; Windows NT 4.0 |
| 19 | 7 | 0.03 | 3 | 0.15 | Windows CE |
| 20 | 7 | 0.03 | 3 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 21 | 6 | 0.03 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 22 | 6 | 0.03 | 2 | 0.10 | Windows XP |
| 23 | 6 | 0.03 | 6 | 0.31 | +http://domainsigma.com/robot |
| 24 | 4 | 0.02 | 2 | 0.10 | Auto; Windows |
| 25 | 4 | 0.02 | 3 | 0.15 | Windows 2000 |
| 26 | 4 | 0.02 | 2 | 0.10 | +info@netcraft.com |
| 27 | 4 | 0.02 | 1 | 0.05 | +http://www.semrush.com/bot.html |
| 28 | 3 | 0.01 | 1 | 0.05 | Windows ME |
| 29 | 3 | 0.01 | 1 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 30 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
