| Used Operating Systems |
| 1 | 41759 | 38.62 | 489 | 7.38 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 35728 | 33.04 | 484 | 7.30 | +http://ahrefs.com/robot/ |
| 3 | 7984 | 7.38 | 1707 | 25.75 | Windows NT |
| 4 | 5388 | 4.98 | 1274 | 19.22 | +http://www.bing.com/bingbot.htm |
| 5 | 3710 | 3.43 | 1337 | 20.17 | +http://www.google.com/bot.html |
| 6 | 2800 | 2.59 | 3 | 0.05 | crawler@goodzer.com |
| 7 | 2794 | 2.58 | 8 | 0.12 | +http://OpenLinkProfiler.org/bot |
| 8 | 2579 | 2.39 | 0 | 0.00 | +http://www.baidu.com/search/spider.html |
| 9 | 2040 | 1.89 | 370 | 5.58 | +http://yandex.com/bots |
| 10 | 962 | 0.89 | 423 | 6.38 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 409 | 0.38 | 106 | 1.60 | +http://www.linkdex.com/bots/ |
| 12 | 310 | 0.29 | 2 | 0.03 | +http://webmeup-crawler.com/ |
| 13 | 276 | 0.26 | 12 | 0.18 | +http://fulltext.sblog.cz/ |
| 14 | 260 | 0.24 | 2 | 0.03 | +http://www.warebay.com/bot.html |
| 15 | 250 | 0.23 | 98 | 1.48 | http://www.opensiteexplorer.org/dotbot, ... |
| 16 | 156 | 0.14 | 65 | 0.98 | +http://duckduckgo.com |
| 17 | 116 | 0.11 | 25 | 0.38 | http://www.bing.com/bingbot.htm |
| 18 | 88 | 0.08 | 41 | 0.62 | +http://www.xovibot.net/ |
| 19 | 56 | 0.05 | 16 | 0.24 | Windows 95 |
| 20 | 50 | 0.05 | 19 | 0.29 | Windows 98 |
| 21 | 48 | 0.04 | 27 | 0.41 | +http://www.exabot.com/go/robot |
| 22 | 45 | 0.04 | 13 | 0.20 | Windows XP |
| 23 | 31 | 0.03 | 5 | 0.08 | http://filterdb.iss.net/crawler/ |
| 24 | 30 | 0.03 | 13 | 0.20 | +https://www.mojeek.com/bot.html |
| 25 | 25 | 0.02 | 6 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 26 | 22 | 0.02 | 11 | 0.17 | +http://www.meanpath.com/meanpathbot.htm... |
| 27 | 18 | 0.02 | 6 | 0.09 | Windows ME |
| 28 | 16 | 0.01 | 5 | 0.08 | Linux [unknown version] |
| 29 | 15 | 0.01 | 2 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 30 | 15 | 0.01 | 15 | 0.23 | apps-spreadsheets; +http://docs.google.c... |
| 31 | 14 | 0.01 | 1 | 0.02 | +http://inbyapp.com |
| 32 | 14 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 33 | 11 | 0.01 | 4 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 34 | 10 | 0.01 | 1 | 0.02 | +https://www.aihitdata.com/about |
| 35 | 10 | 0.01 | 5 | 0.08 | +http://www.grapeshot.co.uk/crawler.php |
| 36 | 9 | 0.01 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 37 | 9 | 0.01 | 2 | 0.03 | Windows 3.1 |
| 38 | 9 | 0.01 | 7 | 0.11 | +info@netcraft.com |
| 39 | 7 | 0.01 | 1 | 0.02 | Linux i686 [unknown version] |
| 40 | 7 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 41 | 6 | 0.01 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 42 | 5 | 0.00 | 2 | 0.03 | Auto; Windows |
| 43 | 4 | 0.00 | 0 | 0.00 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 44 | 4 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 45 | 4 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 46 | 4 | 0.00 | 2 | 0.03 | +http://www.findxbot.com |
| 47 | 3 | 0.00 | 1 | 0.02 | Windows 2000 |
| 48 | 3 | 0.00 | 2 | 0.03 | Windows; U; 32bit |
| 49 | 3 | 0.00 | 3 | 0.05 | +http://domainmacro.com |
| 50 | 2 | 0.00 | 0 | 0.00 | https://nmap.org/book/nse.html |
| 51 | 2 | 0.00 | 0 | 0.00 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 52 | 2 | 0.00 | 1 | 0.02 | http://www.botje.com/plukkie.htm |
| 53 | 2 | 0.00 | 2 | 0.03 | +http://www.tbn.com/bot |
| 54 | 2 | 0.00 | 2 | 0.03 | +http://megaindex.com/crawler |
| 55 | 2 | 0.00 | 1 | 0.02 | +http://prlog.ru/ |
| 56 | 2 | 0.00 | 2 | 0.03 | Linux i586 [unknown version] |
| 57 | 1 | 0.00 | 0 | 0.00 | apps-presentations; +http://docs.google.... |
| 58 | 1 | 0.00 | 1 | 0.02 | X11; Linux x86_64; de |
| 59 | 1 | 0.00 | 1 | 0.02 | Macintosh |
