| Used Operating Systems |
| 1 | 10382 | 39.71 | 142 | 2.08 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 8266 | 31.61 | 4003 | 58.63 | Windows NT |
| 3 | 1552 | 5.94 | 1415 | 20.73 | +http://www.baidu.com/search/spider.html |
| 4 | 1183 | 4.52 | 2 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 5 | 1006 | 3.85 | 2 | 0.03 | http://crawler.007ac9.net/ |
| 6 | 918 | 3.51 | 414 | 6.06 | +http://www.google.com/bot.html |
| 7 | 670 | 2.56 | 201 | 2.94 | +http://www.bing.com/bingbot.htm |
| 8 | 471 | 1.80 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 9 | 355 | 1.36 | 190 | 2.78 | +http://ahrefs.com/robot/ |
| 10 | 322 | 1.23 | 67 | 0.98 | +http://yandex.com/bots |
| 11 | 308 | 1.18 | 96 | 1.41 | +http://www.linkdex.com/bots/ |
| 12 | 105 | 0.40 | 36 | 0.53 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 104 | 0.40 | 43 | 0.63 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 96 | 0.37 | 73 | 1.07 | +http://www.xovibot.net/ |
| 15 | 52 | 0.20 | 22 | 0.32 | Windows 95 |
| 16 | 51 | 0.20 | 1 | 0.01 | +http://endb-consolidated.aihit.com/ |
| 17 | 36 | 0.14 | 18 | 0.26 | +http://www.meanpath.com/meanpathbot.htm... |
| 18 | 30 | 0.11 | 13 | 0.19 | +http://www.exabot.com/go/robot |
| 19 | 28 | 0.11 | 11 | 0.16 | Windows 98 |
| 20 | 24 | 0.09 | 9 | 0.13 | Windows 3.1 |
| 21 | 16 | 0.06 | 6 | 0.09 | X11 |
| 22 | 15 | 0.06 | 4 | 0.06 | Android 2.3.5 |
| 23 | 14 | 0.05 | 5 | 0.07 | MSIE 5.5; Windows NT 5.0 |
| 24 | 13 | 0.05 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 25 | 13 | 0.05 | 10 | 0.15 | Linux i686 [unknown version] |
| 26 | 11 | 0.04 | 1 | 0.01 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 27 | 11 | 0.04 | 6 | 0.09 | +http://www.semrush.com/bot.html |
| 28 | 10 | 0.04 | 4 | 0.06 | Windows ME |
| 29 | 9 | 0.03 | 3 | 0.04 | +http://www.profound.net/domainappender |
| 30 | 7 | 0.03 | 2 | 0.03 | Windows XP |
| 31 | 6 | 0.02 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 32 | 6 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 33 | 6 | 0.02 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 34 | 5 | 0.02 | 3 | 0.04 | Linux [unknown version] |
| 35 | 4 | 0.02 | 2 | 0.03 | Windows 2000 |
| 36 | 4 | 0.02 | 1 | 0.01 | +http://uni5download.com |
| 37 | 4 | 0.02 | 1 | 0.01 | +http://mono.name |
| 38 | 4 | 0.02 | 1 | 0.01 | +http://getdownload.ws |
| 39 | 4 | 0.02 | 2 | 0.03 | http://crawler.sistrix.net/ |
| 40 | 4 | 0.02 | 1 | 0.01 | +http://galaxydownloads.co |
| 41 | 4 | 0.02 | 1 | 0.01 | +http://plus5files.net |
| 42 | 4 | 0.02 | 1 | 0.01 | +http://wmaid.com/en/explore/ |
| 43 | 3 | 0.01 | 1 | 0.01 | +http://opendownload.pw |
| 44 | 2 | 0.01 | 2 | 0.03 | +http://fb02itsscan.fh-muenster.de |
| 45 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 46 | 1 | 0.00 | 0 | 0.00 | Win32 |
| 47 | 1 | 0.00 | 1 | 0.01 | Windows Phone OS 7.5 |
| 48 | 1 | 0.00 | 1 | 0.01 | Trident/6.0; Windows NT 5.0; FDM; MyIE2;... |
| 49 | 1 | 0.00 | 1 | 0.01 | Trident/6.0; Windows 98; FDM |
| 50 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 51 | 1 | 0.00 | 1 | 0.01 | +http://domainsigma.com/robot |
| 52 | 1 | 0.00 | 1 | 0.01 | +http://gimme60.com |
