| Used Operating Systems |
| 1 | 15379 | 49.75 | 102 | 1.56 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5260 | 17.02 | 12 | 0.18 | Windows XP |
| 3 | 5071 | 16.41 | 4402 | 67.28 | +http://www.baidu.com/search/spider.html |
| 4 | 2380 | 7.70 | 985 | 15.05 | Windows NT |
| 5 | 793 | 2.57 | 325 | 4.97 | +http://www.google.com/bot.html |
| 6 | 649 | 2.10 | 212 | 3.24 | +http://www.bing.com/bingbot.htm |
| 7 | 282 | 0.91 | 52 | 0.79 | +http://www.linkdex.com/bots/ |
| 8 | 221 | 0.71 | 94 | 1.44 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 181 | 0.59 | 48 | 0.73 | +http://yandex.com/bots |
| 10 | 87 | 0.28 | 27 | 0.41 | +http://www.semrush.com/bot.html |
| 11 | 78 | 0.25 | 31 | 0.47 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 45 | 0.15 | 3 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 13 | 39 | 0.13 | 39 | 0.60 | http://www.openfos.com |
| 14 | 39 | 0.13 | 39 | 0.60 | http://www.topicway.com |
| 15 | 36 | 0.12 | 15 | 0.23 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 34 | 0.11 | 16 | 0.24 | Windows 98 |
| 17 | 32 | 0.10 | 24 | 0.37 | Windows 95 |
| 18 | 31 | 0.10 | 8 | 0.12 | +http://fulltext.sblog.cz/ |
| 19 | 30 | 0.10 | 2 | 0.03 | +http://webmeup-crawler.com/ |
| 20 | 28 | 0.09 | 14 | 0.21 | http://www.bing.com/bingbot.htm |
| 21 | 26 | 0.08 | 2 | 0.03 | +https://www.lipperhey.com/en/about/ |
| 22 | 26 | 0.08 | 13 | 0.20 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 15 | 0.05 | 9 | 0.14 | ) - BrowseX (2.0.0 Windows |
| 24 | 14 | 0.05 | 1 | 0.02 | +http://megaindex.com/crawler |
| 25 | 14 | 0.05 | 7 | 0.11 | +http://duckduckgo.com |
| 26 | 13 | 0.04 | 6 | 0.09 | http://www.botje.com/plukkie.htm |
| 27 | 13 | 0.04 | 1 | 0.02 | Linux i586 [unknown version] |
| 28 | 12 | 0.04 | 4 | 0.06 | +http://www.exabot.com/go/robot |
| 29 | 11 | 0.04 | 7 | 0.11 | Windows 3.1 |
| 30 | 9 | 0.03 | 3 | 0.05 | +http://ahrefs.com/robot/ |
| 31 | 8 | 0.03 | 8 | 0.12 | Auto; Windows |
| 32 | 8 | 0.03 | 3 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 33 | 6 | 0.02 | 1 | 0.02 | Linux [unknown version] |
| 34 | 6 | 0.02 | 5 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 35 | 6 | 0.02 | 4 | 0.06 | X11 |
| 36 | 5 | 0.02 | 5 | 0.08 | Windows ME |
| 37 | 4 | 0.01 | 1 | 0.02 | +http://www.profound.net/domainappender |
| 38 | 3 | 0.01 | 3 | 0.05 | Windows 2000 |
| 39 | 3 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 40 | 2 | 0.01 | 0 | 0.00 | +http://www.domainoptima.com/robot |
| 41 | 2 | 0.01 | 1 | 0.02 | Linux i686 [unknown version] |
| 42 | 1 | 0.00 | 1 | 0.02 | Windows CE |
| 43 | 1 | 0.00 | 1 | 0.02 | +https://gimmeusa.com/crawler.html |
| 44 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 45 | 1 | 0.00 | 1 | 0.02 | +https://www.wslta.com/WoTBoT.html |
| 46 | 1 | 0.00 | 1 | 0.02 | +http://www.domaintuno.com/robot |
| 47 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 48 | 1 | 0.00 | 0 | 0.00 | Windows Phone OS 7.0; Trident/3.1; IEMob... |
| 49 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 50 | 1 | 0.00 | 1 | 0.02 | +http://www.uptime.com/uptimebot |
| 51 | 1 | 0.00 | 0 | 0.00 | Android 2.3.5 |
