| Used Operating Systems |
| 1 | 15267 | 42.49 | 281 | 2.63 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 6706 | 18.66 | 4492 | 42.08 | +http://ahrefs.com/robot/ |
| 3 | 5011 | 13.95 | 3768 | 35.30 | +http://www.baidu.com/search/spider.html |
| 4 | 3734 | 10.39 | 529 | 4.96 | Windows NT |
| 5 | 1720 | 4.79 | 212 | 1.99 | +http://yandex.com/bots |
| 6 | 948 | 2.64 | 351 | 3.29 | +http://www.google.com/bot.html |
| 7 | 818 | 2.28 | 253 | 2.37 | +http://www.bing.com/bingbot.htm |
| 8 | 660 | 1.84 | 207 | 1.94 | +http://www.linkdex.com/bots/ |
| 9 | 477 | 1.33 | 345 | 3.23 | +http://www.xovibot.net/ |
| 10 | 193 | 0.54 | 42 | 0.39 | +http://www.semrush.com/bot.html |
| 11 | 84 | 0.23 | 43 | 0.40 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 63 | 0.18 | 39 | 0.37 | Windows 95 |
| 13 | 45 | 0.13 | 5 | 0.05 | +http://www.seokicks.de/robot.html |
| 14 | 40 | 0.11 | 18 | 0.17 | Windows XP |
| 15 | 29 | 0.08 | 17 | 0.16 | Windows 98 |
| 16 | 21 | 0.06 | 9 | 0.08 | http://www.opensiteexplorer.org/dotbot, ... |
| 17 | 12 | 0.03 | 4 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 18 | 10 | 0.03 | 6 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 19 | 9 | 0.03 | 7 | 0.07 | Auto; Windows |
| 20 | 8 | 0.02 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 21 | 8 | 0.02 | 1 | 0.01 | +http://www.profound.net/domainappender |
| 22 | 7 | 0.02 | 7 | 0.07 | Windows 2000 |
| 23 | 6 | 0.02 | 1 | 0.01 | +info@netcraft.com |
| 24 | 6 | 0.02 | 6 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 25 | 6 | 0.02 | 3 | 0.03 | +http://www.exabot.com/go/robot |
| 26 | 5 | 0.01 | 3 | 0.03 | Windows 3.1 |
| 27 | 5 | 0.01 | 5 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 28 | 4 | 0.01 | 4 | 0.04 | Windows CE |
| 29 | 4 | 0.01 | 2 | 0.02 | +https://www.mojeek.com/bot.html |
| 30 | 4 | 0.01 | 3 | 0.03 | Windows ME |
| 31 | 4 | 0.01 | 2 | 0.02 | +http://prlog.ru/ |
| 32 | 4 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 33 | 3 | 0.01 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 34 | 2 | 0.01 | 1 | 0.01 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 35 | 2 | 0.01 | 1 | 0.01 | +spider@seoscanners.net |
| 36 | 2 | 0.01 | 2 | 0.02 | Linux i586 [unknown version] |
| 37 | 2 | 0.01 | 1 | 0.01 | +http://duckduckgo.com |
| 38 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 39 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 40 | 1 | 0.00 | 1 | 0.01 | +http://www.domaintuno.com/robot |
| 41 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
