| Used Operating Systems |
| 1 | 20830 | 26.56 | 5668 | 42.28 | +http://ahrefs.com/robot/ |
| 2 | 16972 | 21.64 | 662 | 4.94 | +http://www.bing.com/bingbot.htm |
| 3 | 12359 | 15.76 | 185 | 1.38 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 6507 | 8.30 | 2080 | 15.52 | Windows NT |
| 5 | 6398 | 8.16 | 1 | 0.01 | +http://megaindex.com/crawler |
| 6 | 4885 | 6.23 | 2075 | 15.48 | +http://www.google.com/bot.html |
| 7 | 3098 | 3.95 | 135 | 1.01 | +http://yandex.com/bots |
| 8 | 3003 | 3.83 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 9 | 2048 | 2.61 | 1906 | 14.22 | +http://www.baidu.com/search/spider.html |
| 10 | 516 | 0.66 | 79 | 0.59 | +spider@seoscanners.net |
| 11 | 424 | 0.54 | 132 | 0.98 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 320 | 0.41 | 39 | 0.29 | +http://www.semrush.com/bot.html |
| 13 | 310 | 0.40 | 108 | 0.81 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 189 | 0.24 | 1 | 0.01 | +http://www.warebay.com/bot.html |
| 15 | 139 | 0.18 | 82 | 0.61 | +http://www.xovibot.net/ |
| 16 | 78 | 0.10 | 28 | 0.21 | +http://www.linkdex.com/bots/ |
| 17 | 60 | 0.08 | 56 | 0.42 | Windows 95 |
| 18 | 50 | 0.06 | 37 | 0.28 | Windows 98 |
| 19 | 44 | 0.06 | 8 | 0.06 | +http://napoveda.seznam.cz/en/seznambot-... |
| 20 | 23 | 0.03 | 9 | 0.07 | +http://www.exabot.com/go/robot |
| 21 | 21 | 0.03 | 4 | 0.03 | X11 |
| 22 | 20 | 0.03 | 4 | 0.03 | +http://www.profound.net/domainappender |
| 23 | 13 | 0.02 | 11 | 0.08 | Windows XP |
| 24 | 12 | 0.02 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 25 | 12 | 0.02 | 6 | 0.04 | +http://help.coccoc.com/searchengine |
| 26 | 11 | 0.01 | 11 | 0.08 | Windows CE |
| 27 | 11 | 0.01 | 10 | 0.07 | Windows 3.1 |
| 28 | 10 | 0.01 | 10 | 0.07 | MSIE 5.5; Windows NT 5.0 |
| 29 | 10 | 0.01 | 10 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 30 | 9 | 0.01 | 1 | 0.01 | Android 2.3.5 |
| 31 | 8 | 0.01 | 8 | 0.06 | Windows ME |
| 32 | 8 | 0.01 | 4 | 0.03 | +http://duckduckgo.com |
| 33 | 7 | 0.01 | 7 | 0.05 | Auto; Windows |
| 34 | 7 | 0.01 | 6 | 0.04 | Windows 2000 |
| 35 | 7 | 0.01 | 7 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 36 | 5 | 0.01 | 0 | 0.00 | Windows 92 |
| 37 | 5 | 0.01 | 5 | 0.04 | Linux i686 [unknown version] |
| 38 | 4 | 0.01 | 2 | 0.01 | +http://www.uptime.com/uptimebot |
| 39 | 3 | 0.00 | 1 | 0.01 | +http://siteexplorer.info/ |
| 40 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 41 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 42 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
