| Used Operating Systems |
| 1 | 34431 | 39.50 | 262 | 1.72 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 18805 | 21.57 | 5156 | 33.79 | Windows NT |
| 3 | 12978 | 14.89 | 365 | 2.39 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 9142 | 10.49 | 6725 | 44.07 | +http://www.baidu.com/search/spider.html |
| 5 | 2578 | 2.96 | 19 | 0.12 | +http://www.warebay.com/bot.html |
| 6 | 2459 | 2.82 | 53 | 0.35 | +http://OpenLinkProfiler.org/bot |
| 7 | 1799 | 2.06 | 1061 | 6.95 | +http://www.easou.com/search/spider.html |
| 8 | 1380 | 1.58 | 542 | 3.55 | +http://www.google.com/bot.html |
| 9 | 874 | 1.00 | 191 | 1.25 | +http://yandex.com/bots |
| 10 | 732 | 0.84 | 274 | 1.80 | +http://www.bing.com/bingbot.htm |
| 11 | 730 | 0.84 | 392 | 2.57 | +http://ahrefs.com/robot/ |
| 12 | 528 | 0.61 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 13 | 337 | 0.39 | 97 | 0.64 | +http://www.linkdex.com/bots/ |
| 14 | 63 | 0.07 | 11 | 0.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 52 | 0.06 | 1 | 0.01 | +http://siteexplorer.info/ |
| 16 | 51 | 0.06 | 8 | 0.05 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 43 | 0.05 | 18 | 0.12 | +http://www.exabot.com/go/robot |
| 18 | 38 | 0.04 | 16 | 0.10 | +http://help.coccoc.com/ |
| 19 | 32 | 0.04 | 17 | 0.11 | X11 |
| 20 | 22 | 0.03 | 2 | 0.01 | +http://www.profound.net/urlappendbot.ht... |
| 21 | 14 | 0.02 | 13 | 0.09 | Linux [unknown version] |
| 22 | 14 | 0.02 | 4 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 23 | 14 | 0.02 | 7 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 11 | 0.01 | 4 | 0.03 | Android 2.3.5 |
| 25 | 7 | 0.01 | 1 | 0.01 | Wayback Machine Live Record; +http://arc... |
| 26 | 6 | 0.01 | 3 | 0.02 | +http://www.proximic.com/info/spider.php |
| 27 | 6 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 4 | 0.00 | 1 | 0.01 | Windows 92 |
| 29 | 4 | 0.00 | 2 | 0.01 | +http://wmaid.com/explore/ |
| 30 | 3 | 0.00 | 3 | 0.02 | +http://fb02itsscan.fh-muenster.de |
| 31 | 3 | 0.00 | 1 | 0.01 | +http://overx50.com/ |
| 32 | 3 | 0.00 | 1 | 0.01 | +http://inload.me |
| 33 | 2 | 0.00 | 2 | 0.01 | Windows 95 |
| 34 | 2 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 35 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 36 | 2 | 0.00 | 2 | 0.01 | Windows 98 |
| 37 | 1 | 0.00 | 1 | 0.01 | OpenBSD [unknown version] |
| 38 | 1 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 39 | 1 | 0.00 | 1 | 0.01 | Windows ME |
| 40 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 41 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
