| Used Operating Systems |
| 1 | 20868 | 41.28 | 12228 | 71.77 | +http://ahrefs.com/robot/ |
| 2 | 12733 | 25.18 | 301 | 1.77 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 5817 | 11.51 | 698 | 4.10 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 2745 | 5.43 | 262 | 1.54 | Windows NT |
| 5 | 2666 | 5.27 | 2166 | 12.71 | +http://www.baidu.com/search/spider.html |
| 6 | 1586 | 3.14 | 416 | 2.44 | +http://www.bing.com/bingbot.htm |
| 7 | 975 | 1.93 | 369 | 2.17 | +http://www.google.com/bot.html |
| 8 | 917 | 1.81 | 120 | 0.70 | +http://yandex.com/bots |
| 9 | 552 | 1.09 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 10 | 345 | 0.68 | 174 | 1.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 259 | 0.51 | 46 | 0.27 | +http://napoveda.seznam.cz/en/seznambot-... |
| 12 | 195 | 0.39 | 40 | 0.23 | +http://www.linkdex.com/bots/ |
| 13 | 184 | 0.36 | 63 | 0.37 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 123 | 0.24 | 1 | 0.01 | +http://megaindex.com/crawler |
| 15 | 102 | 0.20 | 1 | 0.01 | Linux [unknown version] |
| 16 | 68 | 0.13 | 2 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 17 | 54 | 0.11 | 2 | 0.01 | +https://www.dataprovider.com/ |
| 18 | 39 | 0.08 | 12 | 0.07 | Windows XP |
| 19 | 38 | 0.08 | 16 | 0.09 | +http://www.exabot.com/go/robot |
| 20 | 36 | 0.07 | 13 | 0.08 | +https://deusu.de/robot.html |
| 21 | 33 | 0.07 | 30 | 0.18 | +http://www.uptime.com/uptimebot |
| 22 | 31 | 0.06 | 7 | 0.04 | +http://www.semrush.com/bot.html |
| 23 | 27 | 0.05 | 12 | 0.07 | Windows 95 |
| 24 | 25 | 0.05 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 25 | 18 | 0.04 | 2 | 0.01 | +http://fulltext.sblog.cz/ |
| 26 | 17 | 0.03 | 6 | 0.04 | Windows 3.1 |
| 27 | 17 | 0.03 | 6 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 28 | 17 | 0.03 | 8 | 0.05 | Windows 98 |
| 29 | 9 | 0.02 | 3 | 0.02 | http://crawler.007ac9.net/ |
| 30 | 8 | 0.02 | 4 | 0.02 | Auto; Windows |
| 31 | 6 | 0.01 | 2 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 32 | 5 | 0.01 | 5 | 0.03 | +http://glutenfreepleasure.com/ |
| 33 | 5 | 0.01 | 2 | 0.01 | Windows ME |
| 34 | 5 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 35 | 4 | 0.01 | 2 | 0.01 | http://www.botje.com/plukkie.htm |
| 36 | 4 | 0.01 | 1 | 0.01 | Windows Phone OS 7.5 |
| 37 | 4 | 0.01 | 3 | 0.02 | +info@netcraft.com |
| 38 | 3 | 0.01 | 1 | 0.01 | https://nmap.org/book/nse.html |
| 39 | 3 | 0.01 | 1 | 0.01 | Windows CE |
| 40 | 3 | 0.01 | 1 | 0.01 | +http://help.naver.com/support/robots.ht... |
| 41 | 2 | 0.00 | 2 | 0.01 | +https://rankval.com |
| 42 | 2 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
| 43 | 2 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 44 | 1 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 45 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 46 | 1 | 0.00 | 1 | 0.01 | Linux i586 [unknown version] |
| 47 | 1 | 0.00 | 0 | 0.00 | +http://www.pdffiller.com/en/support.htm |
| 48 | 1 | 0.00 | 0 | 0.00 | +; |
| 49 | 1 | 0.00 | 0 | 0.00 | i686 Linux; 20021104 |
