| Used Operating Systems |
| 1 | 57755 | 58.69 | 495 | 3.52 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 24462 | 24.86 | 10812 | 76.80 | +http://ahrefs.com/robot/ |
| 3 | 6458 | 6.56 | 10 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 4 | 3301 | 3.35 | 649 | 4.61 | Windows NT |
| 5 | 1076 | 1.09 | 347 | 2.46 | +http://www.google.com/bot.html |
| 6 | 1071 | 1.09 | 843 | 5.99 | +http://www.baidu.com/search/spider.html |
| 7 | 956 | 0.97 | 196 | 1.39 | http://help.yahoo.com/help/us/ysearch/sl... |
| 8 | 948 | 0.96 | 299 | 2.12 | +http://www.bing.com/bingbot.htm |
| 9 | 671 | 0.68 | 106 | 0.75 | +http://www.linkdex.com/bots/ |
| 10 | 512 | 0.52 | 99 | 0.70 | +http://yandex.com/bots |
| 11 | 400 | 0.41 | 73 | 0.52 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 284 | 0.29 | 4 | 0.03 | +http://webmeup-crawler.com/ |
| 13 | 104 | 0.11 | 2 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 14 | 104 | 0.11 | 35 | 0.25 | +http://www.semrush.com/bot.html |
| 15 | 50 | 0.05 | 25 | 0.18 | +http://fulltext.sblog.cz/ |
| 16 | 40 | 0.04 | 11 | 0.08 | Windows 95 |
| 17 | 33 | 0.03 | 11 | 0.08 | Windows 98 |
| 18 | 32 | 0.03 | 8 | 0.06 | http://www.botje.com/plukkie.htm |
| 19 | 20 | 0.02 | 4 | 0.03 | Windows 2000 |
| 20 | 20 | 0.02 | 9 | 0.06 | +http://www.exabot.com/go/robot |
| 21 | 16 | 0.02 | 16 | 0.11 | +http://www.xovibot.net/ |
| 22 | 16 | 0.02 | 8 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 14 | 0.01 | 2 | 0.01 | Windows ME |
| 24 | 12 | 0.01 | 0 | 0.00 | OS/2 |
| 25 | 12 | 0.01 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 26 | 6 | 0.01 | 4 | 0.03 | Auto; Windows |
| 27 | 4 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 28 | 4 | 0.00 | 0 | 0.00 | Windows 3.1 |
| 29 | 4 | 0.00 | 0 | 0.00 | MSIE 5.5; Windows NT 4.0 |
| 30 | 4 | 0.00 | 2 | 0.01 | +http://duckduckgo.com |
| 31 | 3 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 32 | 2 | 0.00 | 0 | 0.00 | Windows XP |
| 33 | 2 | 0.00 | 2 | 0.01 | +http://www.privacyaware.org |
| 34 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 35 | 2 | 0.00 | 0 | 0.00 | X11 |
| 36 | 2 | 0.00 | 2 | 0.01 | Linux i686 [unknown version] |
