| Used Operating Systems |
| 1 | 24818 | 42.09 | 231 | 2.66 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 15327 | 25.99 | 17 | 0.20 | +http://ahrefs.com/robot/ |
| 3 | 5303 | 8.99 | 1545 | 17.78 | Windows NT |
| 4 | 4923 | 8.35 | 3537 | 40.70 | +http://www.baidu.com/search/spider.html |
| 5 | 3657 | 6.20 | 1192 | 13.72 | +http://www.xovibot.net/ |
| 6 | 1791 | 3.04 | 784 | 9.02 | +http://www.google.com/bot.html |
| 7 | 746 | 1.27 | 284 | 3.27 | +http://www.bing.com/bingbot.htm |
| 8 | 551 | 0.93 | 145 | 1.67 | +http://yandex.com/bots |
| 9 | 284 | 0.48 | 230 | 2.65 | +http://www.linkdex.com/bots/ |
| 10 | 251 | 0.43 | 103 | 1.19 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 250 | 0.42 | 32 | 0.37 | Windows 98 |
| 12 | 232 | 0.39 | 170 | 1.96 | Windows 95 |
| 13 | 149 | 0.25 | 60 | 0.69 | http://www.opensiteexplorer.org/dotbot, ... |
| 14 | 60 | 0.10 | 31 | 0.36 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 57 | 0.10 | 2 | 0.02 | Windows XP |
| 16 | 50 | 0.08 | 35 | 0.40 | Windows ME |
| 17 | 49 | 0.08 | 39 | 0.45 | MSIE 5.5; Windows NT 5.0 |
| 18 | 47 | 0.08 | 38 | 0.44 | MSIE 5.5; Windows NT 4.0 |
| 19 | 46 | 0.08 | 37 | 0.43 | Windows CE |
| 20 | 44 | 0.07 | 36 | 0.41 | Auto; Windows |
| 21 | 43 | 0.07 | 11 | 0.13 | +http://www.semrush.com/bot.html |
| 22 | 42 | 0.07 | 34 | 0.39 | Windows 2000 |
| 23 | 40 | 0.07 | 30 | 0.35 | Windows 3.1 |
| 24 | 33 | 0.06 | 28 | 0.32 | ) - BrowseX (2.0.0 Windows |
| 25 | 30 | 0.05 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 22 | 0.04 | 8 | 0.09 | +http://duckduckgo.com |
| 27 | 21 | 0.04 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 28 | 20 | 0.03 | 2 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 29 | 16 | 0.03 | 8 | 0.09 | +http://help.coccoc.com/ |
| 30 | 10 | 0.02 | 1 | 0.01 | +https://www.aihitdata.com/about |
| 31 | 10 | 0.02 | 1 | 0.01 | +http://megaindex.com/crawler |
| 32 | 9 | 0.02 | 4 | 0.05 | +http://www.exabot.com/go/robot |
| 33 | 9 | 0.02 | 2 | 0.02 | +http://fulltext.sblog.cz/ |
| 34 | 6 | 0.01 | 3 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 35 | 3 | 0.01 | 3 | 0.03 | +http://pmoz.info/doc/botinfo.htm |
| 36 | 3 | 0.01 | 2 | 0.02 | Linux [unknown version] |
| 37 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 38 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 39 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 40 | 1 | 0.00 | 1 | 0.01 | FreeBSD [unknown version] |
| 41 | 1 | 0.00 | 1 | 0.01 | Linux i586 [unknown version] |
| 42 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 43 | 1 | 0.00 | 0 | 0.00 | Windows 9x |
| 44 | 1 | 0.00 | 0 | 0.00 | X11 |
