| Used Operating Systems |
| 1 | 20392 | 46.18 | 178 | 2.35 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7988 | 18.09 | 2264 | 29.91 | Windows NT |
| 3 | 4930 | 11.17 | 3678 | 48.59 | +http://www.baidu.com/search/spider.html |
| 4 | 2971 | 6.73 | 100 | 1.32 | +http://yandex.com/bots |
| 5 | 1597 | 3.62 | 332 | 4.39 | +http://ahrefs.com/robot/ |
| 6 | 1427 | 3.23 | 21 | 0.28 | +http://OpenLinkProfiler.org/bot |
| 7 | 897 | 2.03 | 2 | 0.03 | +http://webmeup-crawler.com/ |
| 8 | 886 | 2.01 | 77 | 1.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 745 | 1.69 | 352 | 4.65 | +http://www.google.com/bot.html |
| 10 | 608 | 1.38 | 153 | 2.02 | +http://www.linkdex.com/bots/ |
| 11 | 468 | 1.06 | 112 | 1.48 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 387 | 0.88 | 151 | 1.99 | +http://www.bing.com/bingbot.htm |
| 13 | 318 | 0.72 | 28 | 0.37 | +http://www.easou.com/search/spider.html |
| 14 | 108 | 0.24 | 32 | 0.42 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 97 | 0.22 | 3 | 0.04 | http://crawler.sistrix.net/ |
| 16 | 84 | 0.19 | 2 | 0.03 | +http://advbot.net/bot.html |
| 17 | 49 | 0.11 | 16 | 0.21 | +http://www.exabot.com/go/robot |
| 18 | 30 | 0.07 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 19 | 20 | 0.05 | 4 | 0.05 | X11 |
| 20 | 18 | 0.04 | 7 | 0.09 | Windows 98 |
| 21 | 15 | 0.03 | 0 | 0.00 | Linux [unknown version] |
| 22 | 14 | 0.03 | 14 | 0.18 | actually this is http://ismyblogworking.... |
| 23 | 9 | 0.02 | 1 | 0.01 | Windows XP |
| 24 | 9 | 0.02 | 0 | 0.00 | +http://www.xovibot.net/ |
| 25 | 8 | 0.02 | 7 | 0.09 | +info@netcraft.com |
| 26 | 8 | 0.02 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 27 | 8 | 0.02 | 3 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 28 | 7 | 0.02 | 2 | 0.03 | +http://isdownload.biz |
| 29 | 6 | 0.01 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 30 | 6 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 31 | 6 | 0.01 | 3 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 6 | 0.01 | 6 | 0.08 | +http://domainsigma.com/robot |
| 33 | 4 | 0.01 | 1 | 0.01 | +http://medialine-it.com |
| 34 | 4 | 0.01 | 2 | 0.03 | Windows 95 |
| 35 | 4 | 0.01 | 1 | 0.01 | Android 2.3.5 |
| 36 | 3 | 0.01 | 3 | 0.04 | Windows CE |
| 37 | 2 | 0.00 | 2 | 0.03 | Windows 2000 |
| 38 | 2 | 0.00 | 1 | 0.01 | Mail.RU_Bot/Robots; +http://go.mail.ru/h... |
| 39 | 2 | 0.00 | 2 | 0.03 | Linux 2.4.x |
| 40 | 2 | 0.00 | 2 | 0.03 | Windows ME |
| 41 | 2 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 42 | 2 | 0.00 | 1 | 0.01 | +http://duckduckgo.com |
| 43 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.5 |
| 44 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
| 45 | 1 | 0.00 | 1 | 0.01 | +; |
| 46 | 1 | 0.00 | 1 | 0.01 | +http://www.loadtime.net/bot.html |
| 47 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 48 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 5.0 |
