| Used Operating Systems |
| 1 | 56430 | 38.31 | 88 | 0.31 | +http://ahrefs.com/robot/ |
| 2 | 30825 | 20.93 | 20443 | 72.38 | +http://www.baidu.com/search/spider.html |
| 3 | 22677 | 15.40 | 4476 | 15.85 | Windows NT |
| 4 | 19656 | 13.34 | 168 | 0.59 | http://www.majestic12.co.uk/bot.php?+ |
| 5 | 4212 | 2.86 | 304 | 1.08 | http://www.opensiteexplorer.org/dotbot, ... |
| 6 | 4087 | 2.77 | 882 | 3.12 | +http://www.xovibot.net/ |
| 7 | 2456 | 1.67 | 1103 | 3.91 | +http://www.google.com/bot.html |
| 8 | 2190 | 1.49 | 59 | 0.21 | +http://OpenLinkProfiler.org/bot |
| 9 | 1759 | 1.19 | 297 | 1.05 | +http://www.bing.com/bingbot.htm |
| 10 | 1737 | 1.18 | 128 | 0.45 | +http://yandex.com/bots |
| 11 | 505 | 0.34 | 4 | 0.01 | +http://www.warebay.com/bot.html |
| 12 | 245 | 0.17 | 71 | 0.25 | +http://www.linkdex.com/bots/ |
| 13 | 200 | 0.14 | 66 | 0.23 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 144 | 0.10 | 69 | 0.24 | +http://help.coccoc.com/ |
| 15 | 60 | 0.04 | 19 | 0.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 24 | 0.02 | 19 | 0.07 | Linux i686 [unknown version] |
| 17 | 23 | 0.02 | 5 | 0.02 | +http://www.exabot.com/go/robot |
| 18 | 12 | 0.01 | 1 | 0.00 | +https://www.lipperhey.com/en/about/ |
| 19 | 10 | 0.01 | 9 | 0.03 | +info@netcraft.com |
| 20 | 8 | 0.01 | 6 | 0.02 | Windows 95 |
| 21 | 5 | 0.00 | 5 | 0.02 | Linux i586 [unknown version] |
| 22 | 4 | 0.00 | 2 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 3 | 0.00 | 3 | 0.01 | Linux [unknown version] |
| 24 | 3 | 0.00 | 1 | 0.00 | +http://www.seodiver.com/bot |
| 25 | 3 | 0.00 | 1 | 0.00 | Windows XP |
| 26 | 3 | 0.00 | 0 | 0.00 | Windows 98 |
| 27 | 2 | 0.00 | 2 | 0.01 | http://www.bing.com/bingbot.htm |
| 28 | 2 | 0.00 | 2 | 0.01 | Windows ME |
| 29 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 30 | 2 | 0.00 | 1 | 0.00 | X11 |
| 31 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 32 | 2 | 0.00 | 0 | 0.00 | +http://www.profound.net/domainappender |
| 33 | 2 | 0.00 | 2 | 0.01 | +http://domainsigma.com/robot |
| 34 | 1 | 0.00 | 1 | 0.00 | Auto; Windows |
| 35 | 1 | 0.00 | 1 | 0.00 | http://nmap.org/book/nse.html |
| 36 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 1 | 0.00 | 1 | 0.00 | +http://www.wmtips.com/tools/ |
| 38 | 1 | 0.00 | 1 | 0.00 | Windows 3.1 |
