| Used Operating Systems |
| 1 | 35387 | 54.25 | 468 | 4.76 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 24076 | 36.91 | 7311 | 74.40 | +http://ahrefs.com/robot/ |
| 3 | 2188 | 3.35 | 603 | 6.14 | Windows NT |
| 4 | 2010 | 3.08 | 1103 | 11.23 | +http://www.baidu.com/search/spider.html |
| 5 | 611 | 0.94 | 131 | 1.33 | +http://www.bing.com/bingbot.htm |
| 6 | 204 | 0.31 | 32 | 0.33 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 7 | 193 | 0.30 | 40 | 0.41 | http://help.yahoo.com/help/us/ysearch/sl... |
| 8 | 163 | 0.25 | 25 | 0.25 | +http://www.google.com/bot.html |
| 9 | 143 | 0.22 | 36 | 0.37 | +http://yandex.com/bots |
| 10 | 46 | 0.07 | 13 | 0.13 | +http://www.linkdex.com/bots/ |
| 11 | 34 | 0.05 | 2 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 12 | 32 | 0.05 | 7 | 0.07 | Windows 98 |
| 13 | 28 | 0.04 | 10 | 0.10 | +http://www.exabot.com/go/robot |
| 14 | 25 | 0.04 | 15 | 0.15 | Windows 95 |
| 15 | 18 | 0.03 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 16 | 18 | 0.03 | 3 | 0.03 | http://www.botje.com/plukkie.htm |
| 17 | 14 | 0.02 | 7 | 0.07 | +http://www.meanpath.com/meanpathbot.htm... |
| 18 | 13 | 0.02 | 2 | 0.02 | Windows XP |
| 19 | 4 | 0.01 | 4 | 0.04 | Windows CE |
| 20 | 4 | 0.01 | 4 | 0.04 | Auto; Windows |
| 21 | 4 | 0.01 | 4 | 0.04 | Windows 3.1 |
| 22 | 3 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 23 | 2 | 0.00 | 2 | 0.02 | Windows 2000 |
| 24 | 2 | 0.00 | 2 | 0.02 | +http://www.privacyaware.org |
| 25 | 2 | 0.00 | 0 | 0.00 | X11 |
| 26 | 2 | 0.00 | 2 | 0.02 | Linux i686 [unknown version] |
