| Used Operating Systems |
| 1 | 17565 | 70.83 | 150 | 5.06 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2858 | 11.52 | 1198 | 40.40 | Windows NT |
| 3 | 1599 | 6.45 | 1089 | 36.73 | +http://www.baidu.com/search/spider.html |
| 4 | 1040 | 4.19 | 8 | 0.27 | +http://www.warebay.com/bot.html |
| 5 | 490 | 1.98 | 102 | 3.44 | +http://www.bing.com/bingbot.htm |
| 6 | 482 | 1.94 | 8 | 0.27 | +http://OpenLinkProfiler.org/bot |
| 7 | 253 | 1.02 | 118 | 3.98 | +http://www.google.com/bot.html |
| 8 | 150 | 0.60 | 58 | 1.96 | +http://yandex.com/bots |
| 9 | 91 | 0.37 | 56 | 1.89 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 62 | 0.25 | 53 | 1.79 | Windows 95 |
| 11 | 53 | 0.21 | 16 | 0.54 | Windows 98 |
| 12 | 29 | 0.12 | 14 | 0.47 | +http://www.exabot.com/go/robot |
| 13 | 13 | 0.05 | 12 | 0.40 | Windows 2000 |
| 14 | 12 | 0.05 | 5 | 0.17 | http://www.opensiteexplorer.org/dotbot, ... |
| 15 | 12 | 0.05 | 11 | 0.37 | Windows 3.1 |
| 16 | 12 | 0.05 | 12 | 0.40 | MSIE 5.5; Windows NT 5.0 |
| 17 | 10 | 0.04 | 10 | 0.34 | Windows ME |
| 18 | 10 | 0.04 | 5 | 0.17 | +http://www.meanpath.com/meanpathbot.htm... |
| 19 | 9 | 0.04 | 0 | 0.00 | Windows XP |
| 20 | 9 | 0.04 | 9 | 0.30 | MSIE 5.5; Windows NT 4.0 |
| 21 | 8 | 0.03 | 7 | 0.24 | Windows CE |
| 22 | 8 | 0.03 | 2 | 0.07 | +http://ahrefs.com/robot/ |
| 23 | 7 | 0.03 | 7 | 0.24 | Auto; Windows |
| 24 | 7 | 0.03 | 7 | 0.24 | ) - BrowseX (2.0.0 Windows |
| 25 | 2 | 0.01 | 1 | 0.03 | PPC Mac OS X Mach-O |
| 26 | 2 | 0.01 | 1 | 0.03 | +info@netcraft.com |
| 27 | 1 | 0.00 | 1 | 0.03 | OpenBSD [unknown version] |
| 28 | 1 | 0.00 | 0 | 0.00 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 29 | 1 | 0.00 | 1 | 0.03 | Linux [unknown version] |
| 30 | 1 | 0.00 | 1 | 0.03 | http://nmap.org/book/nse.html |
| 31 | 1 | 0.00 | 1 | 0.03 | X11 |
| 32 | 1 | 0.00 | 1 | 0.03 | Linux i586 [unknown version] |
| 33 | 1 | 0.00 | 1 | 0.03 | Linux i686 [unknown version] |
