| Used Operating Systems |
| 1 | 19534 | 28.33 | 183 | 1.13 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 15083 | 21.87 | 9534 | 58.67 | +http://ahrefs.com/robot/ |
| 3 | 14002 | 20.31 | 529 | 3.26 | +http://yandex.com/bots |
| 4 | 7874 | 11.42 | 883 | 5.43 | Windows NT |
| 5 | 5592 | 8.11 | 4177 | 25.71 | +http://www.baidu.com/search/spider.html |
| 6 | 1978 | 2.87 | 6 | 0.04 | +http://www.warebay.com/bot.html |
| 7 | 1456 | 2.11 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 8 | 1004 | 1.46 | 242 | 1.49 | +http://www.linkdex.com/bots/ |
| 9 | 685 | 0.99 | 296 | 1.82 | +http://www.google.com/bot.html |
| 10 | 342 | 0.50 | 106 | 0.65 | +http://www.bing.com/bingbot.htm |
| 11 | 264 | 0.38 | 8 | 0.05 | +http://siteexplorer.info/ |
| 12 | 250 | 0.36 | 1 | 0.01 | Linux i586 [unknown version] |
| 13 | 195 | 0.28 | 26 | 0.16 | http://www.opensiteexplorer.org/dotbot, ... |
| 14 | 176 | 0.26 | 29 | 0.18 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 87 | 0.13 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 16 | 79 | 0.11 | 64 | 0.39 | Windows 95 |
| 17 | 68 | 0.10 | 21 | 0.13 | http://help.yahoo.com/help/us/ysearch/sl... |
| 18 | 63 | 0.09 | 11 | 0.07 | +http://www.semrush.com/bot.html |
| 19 | 33 | 0.05 | 21 | 0.13 | Windows 98 |
| 20 | 26 | 0.04 | 2 | 0.01 | +https://www.dataprovider.com/ |
| 21 | 25 | 0.04 | 3 | 0.02 | +http://sur.ly/bot.html |
| 22 | 20 | 0.03 | 13 | 0.08 | Windows CE |
| 23 | 20 | 0.03 | 9 | 0.06 | +http://www.exabot.com/go/robot |
| 24 | 11 | 0.02 | 10 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 25 | 10 | 0.01 | 8 | 0.05 | Windows 2000 |
| 26 | 10 | 0.01 | 5 | 0.03 | +http://www.uptime.com/uptimebot |
| 27 | 9 | 0.01 | 9 | 0.06 | Auto; Windows |
| 28 | 9 | 0.01 | 9 | 0.06 | Windows ME |
| 29 | 8 | 0.01 | 8 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 30 | 8 | 0.01 | 7 | 0.04 | +info@netcraft.com |
| 31 | 7 | 0.01 | 7 | 0.04 | Windows 3.1 |
| 32 | 6 | 0.01 | 2 | 0.01 | +http://www.xovibot.net/ |
| 33 | 5 | 0.01 | 1 | 0.01 | J2ME/MIDP |
| 34 | 5 | 0.01 | 5 | 0.03 | actually this is http://ismyblogworking.... |
| 35 | 5 | 0.01 | 1 | 0.01 | PPC Mac OS X 10.5 |
| 36 | 4 | 0.01 | 4 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 37 | 3 | 0.00 | 3 | 0.02 | http://nmap.org/book/nse.html |
| 38 | 2 | 0.00 | 1 | 0.01 | Windows XP |
