| Used Operating Systems |
| 1 | 14545 | 44.06 | 4402 | 50.38 | Windows NT |
| 2 | 7925 | 24.01 | 139 | 1.59 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 3018 | 9.14 | 2457 | 28.12 | +http://www.baidu.com/search/spider.html |
| 4 | 1304 | 3.95 | 38 | 0.43 | Windows 98 |
| 5 | 1178 | 3.57 | 737 | 8.43 | +http://www.easou.com/search/spider.html |
| 6 | 908 | 2.75 | 148 | 1.69 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 880 | 2.67 | 135 | 1.54 | help@moz.com |
| 8 | 746 | 2.26 | 12 | 0.14 | +http://OpenLinkProfiler.org/bot |
| 9 | 630 | 1.91 | 262 | 3.00 | +http://www.bing.com/bingbot.htm |
| 10 | 424 | 1.28 | 37 | 0.42 | +http://yandex.com/bots |
| 11 | 394 | 1.19 | 102 | 1.17 | +http://www.google.com/bot.html |
| 12 | 316 | 0.96 | 90 | 1.03 | +http://www.linkdex.com/bots/ |
| 13 | 203 | 0.61 | 66 | 0.76 | +http://www.linkdex.com/about/bots/ |
| 14 | 192 | 0.58 | 5 | 0.06 | http://crawler.sistrix.net/ |
| 15 | 115 | 0.35 | 34 | 0.39 | +http://www.exabot.com/go/robot |
| 16 | 80 | 0.24 | 10 | 0.11 | X11 |
| 17 | 34 | 0.10 | 6 | 0.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 34 | 0.10 | 7 | 0.08 | Android 2.3.5 |
| 19 | 13 | 0.04 | 8 | 0.09 | Linux i686 [unknown version] |
| 20 | 10 | 0.03 | 6 | 0.07 | Linux [unknown version] |
| 21 | 8 | 0.02 | 8 | 0.09 | Windows 95 |
| 22 | 8 | 0.02 | 7 | 0.08 | +info@netcraft.com |
| 23 | 5 | 0.02 | 1 | 0.01 | +http://u12files.com/ |
| 24 | 4 | 0.01 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 25 | 3 | 0.01 | 3 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 26 | 3 | 0.01 | 1 | 0.01 | +http://www.loadtime.net/bot.html |
| 27 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 28 | 2 | 0.01 | 1 | 0.01 | http://help.yahoo.com/help/us/ysearch/sl... |
| 29 | 2 | 0.01 | 2 | 0.02 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 30 | 2 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 31 | 2 | 0.01 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 2 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 33 | 1 | 0.00 | 1 | 0.01 | http://www.lipperhey.com/ |
| 34 | 1 | 0.00 | 0 | 0.00 | http://about.ask.com/en/docs/about/webma... |
| 35 | 1 | 0.00 | 0 | 0.00 | http://www.entireweb.com/about/search_te... |
| 36 | 1 | 0.00 | 1 | 0.01 | Windows CE |
| 37 | 1 | 0.00 | 1 | 0.01 | RISC OS 4.02 |
| 38 | 1 | 0.00 | 1 | 0.01 | +http://www.proximic.com/info/spider.php |
| 39 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 40 | 1 | 0.00 | 0 | 0.00 | +http://about.depspid.net |
| 41 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
| 42 | 1 | 0.00 | 1 | 0.01 | Trident/5.0; Windows NT 5.2; Alexa Toolb... |
| 43 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 44 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 45 | 1 | 0.00 | 1 | 0.01 | +http://ego.ms.mff.cuni.cz/ |
| 46 | 1 | 0.00 | 0 | 0.00 | +http://www.dnsdigger.com |
| 47 | 1 | 0.00 | 1 | 0.01 | +http://bixolabs.com/crawler/general; cr... |
| 48 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 49 | 1 | 0.00 | 1 | 0.01 | actually this is http://ismyblogworking.... |
| 50 | 1 | 0.00 | 1 | 0.01 | +http://monoid.nic.ru/ |
| 51 | 1 | 0.00 | 0 | 0.00 | +http://www.alexa.com/help/webmasters; s... |
