| Used Operating Systems |
| 1 | 31092 | 60.68 | 291 | 3.85 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 10332 | 20.16 | 3340 | 44.21 | Windows NT |
| 3 | 3376 | 6.59 | 2188 | 28.96 | +http://www.baidu.com/search/spider.html |
| 4 | 1442 | 2.81 | 21 | 0.28 | +http://OpenLinkProfiler.org/bot |
| 5 | 795 | 1.55 | 188 | 2.49 | +http://www.linkdex.com/bots/ |
| 6 | 646 | 1.26 | 235 | 3.11 | +http://www.bing.com/bingbot.htm |
| 7 | 567 | 1.11 | 220 | 2.91 | +http://www.google.com/bot.html |
| 8 | 511 | 1.00 | 4 | 0.05 | +http://www.warebay.com/bot.html |
| 9 | 399 | 0.78 | 95 | 1.26 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 395 | 0.77 | 223 | 2.95 | Windows 95 |
| 11 | 251 | 0.49 | 29 | 0.38 | Windows 98 |
| 12 | 249 | 0.49 | 60 | 0.79 | +http://yandex.com/bots |
| 13 | 206 | 0.40 | 121 | 1.60 | +http://ahrefs.com/robot/ |
| 14 | 117 | 0.23 | 23 | 0.30 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 79 | 0.15 | 55 | 0.73 | Windows CE |
| 16 | 76 | 0.15 | 56 | 0.74 | Windows 2000 |
| 17 | 76 | 0.15 | 53 | 0.70 | MSIE 5.5; Windows NT 5.0 |
| 18 | 74 | 0.14 | 26 | 0.34 | +http://www.exabot.com/go/robot |
| 19 | 72 | 0.14 | 54 | 0.71 | Windows ME |
| 20 | 68 | 0.13 | 5 | 0.07 | Windows XP |
| 21 | 67 | 0.13 | 53 | 0.70 | MSIE 5.5; Windows NT 4.0 |
| 22 | 66 | 0.13 | 46 | 0.61 | Auto; Windows |
| 23 | 65 | 0.13 | 42 | 0.56 | Windows 3.1 |
| 24 | 59 | 0.12 | 43 | 0.57 | ) - BrowseX (2.0.0 Windows |
| 25 | 42 | 0.08 | 12 | 0.16 | http://www.opensiteexplorer.org/dotbot, ... |
| 26 | 19 | 0.04 | 19 | 0.25 | actually this is http://ismyblogworking.... |
| 27 | 15 | 0.03 | 10 | 0.13 | X11 |
| 28 | 14 | 0.03 | 3 | 0.04 | PPC Mac OS X Mach-O |
| 29 | 14 | 0.03 | 3 | 0.04 | +http://www.semrush.com/bot.html |
| 30 | 8 | 0.02 | 7 | 0.09 | +info@netcraft.com |
| 31 | 8 | 0.02 | 4 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 7 | 0.01 | 7 | 0.09 | +http://domainsigma.com/robot |
| 33 | 6 | 0.01 | 1 | 0.01 | Linux [unknown version] |
| 34 | 5 | 0.01 | 5 | 0.07 | Linux i686 [unknown version] |
| 35 | 5 | 0.01 | 5 | 0.07 | Linux i586 [unknown version] |
| 36 | 4 | 0.01 | 2 | 0.03 | +http://duckduckgo.com |
| 37 | 3 | 0.01 | 0 | 0.00 | +http://www.findxbot.com |
| 38 | 2 | 0.00 | 1 | 0.01 | +http://www.seodiver.com/bot |
| 39 | 2 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 40 | 2 | 0.00 | 2 | 0.03 | +http://www.xovibot.net/ |
| 41 | 1 | 0.00 | 1 | 0.01 | +http://www.seograph.net/bot.html |
| 42 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 43 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
