| Used Operating Systems |
| 1 | 16164 | 36.94 | 146 | 1.94 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 9087 | 20.77 | 50 | 0.67 | +http://ahrefs.com/robot/ |
| 3 | 6910 | 15.79 | 1565 | 20.85 | Windows NT |
| 4 | 6496 | 14.85 | 4095 | 54.55 | +http://www.baidu.com/search/spider.html |
| 5 | 2172 | 4.96 | 489 | 6.51 | +http://www.xovibot.net/ |
| 6 | 1020 | 2.33 | 530 | 7.06 | +http://www.google.com/bot.html |
| 7 | 711 | 1.62 | 264 | 3.52 | +http://www.bing.com/bingbot.htm |
| 8 | 409 | 0.93 | 88 | 1.17 | +http://yandex.com/bots |
| 9 | 178 | 0.41 | 55 | 0.73 | +http://www.linkdex.com/bots/ |
| 10 | 165 | 0.38 | 79 | 1.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 99 | 0.23 | 31 | 0.41 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 51 | 0.12 | 21 | 0.28 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 39 | 0.09 | 13 | 0.17 | Windows XP |
| 14 | 38 | 0.09 | 15 | 0.20 | Windows 95 |
| 15 | 32 | 0.07 | 2 | 0.03 | +http://megaindex.com/crawler |
| 16 | 24 | 0.05 | 7 | 0.09 | Linux [unknown version] |
| 17 | 22 | 0.05 | 6 | 0.08 | +http://fulltext.sblog.cz/ |
| 18 | 17 | 0.04 | 1 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 19 | 15 | 0.03 | 1 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 20 | 13 | 0.03 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 21 | 12 | 0.03 | 11 | 0.15 | Linux i686 [unknown version] |
| 22 | 12 | 0.03 | 6 | 0.08 | +http://duckduckgo.com |
| 23 | 9 | 0.02 | 4 | 0.05 | +http://www.exabot.com/go/robot |
| 24 | 7 | 0.02 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 25 | 4 | 0.01 | 2 | 0.03 | +http://sur.ly/bot.html |
| 26 | 4 | 0.01 | 2 | 0.03 | Windows 98 |
| 27 | 4 | 0.01 | 4 | 0.05 | Linux i586 [unknown version] |
| 28 | 4 | 0.01 | 2 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 29 | 3 | 0.01 | 1 | 0.01 | Windows CE |
| 30 | 3 | 0.01 | 0 | 0.00 | Android |
| 31 | 3 | 0.01 | 3 | 0.04 | http://nmap.org/book/nse.html |
| 32 | 3 | 0.01 | 2 | 0.03 | Windows ME |
| 33 | 3 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 34 | 3 | 0.01 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 35 | 3 | 0.01 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 36 | 3 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 37 | 2 | 0.00 | 1 | 0.01 | +http://www.netseer.com/crawler.html; cr... |
| 38 | 2 | 0.00 | 2 | 0.03 | +http://www.domaintuno.com/robot |
| 39 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 40 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 41 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 42 | 1 | 0.00 | 1 | 0.01 | QNX x86pc |
| 43 | 1 | 0.00 | 0 | 0.00 | X11 |
| 44 | 1 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
