| Used Operating Systems |
| 1 | 2965 | 33.77 | 1706 | 44.04 | +http://www.baidu.com/search/spider.html |
| 2 | 2422 | 27.59 | 1028 | 26.54 | Windows NT |
| 3 | 932 | 10.62 | 353 | 9.11 | +http://www.bing.com/bingbot.htm |
| 4 | 809 | 9.22 | 293 | 7.56 | +http://www.google.com/bot.html |
| 5 | 577 | 6.57 | 46 | 1.19 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 123 | 1.40 | 21 | 0.54 | +http://ahrefs.com/robot/ |
| 7 | 116 | 1.32 | 106 | 2.74 | Windows 95 |
| 8 | 110 | 1.25 | 41 | 1.06 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 89 | 1.01 | 30 | 0.77 | Windows 98 |
| 10 | 79 | 0.90 | 17 | 0.44 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 60 | 0.68 | 8 | 0.21 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 46 | 0.52 | 6 | 0.15 | +http://yandex.com/bots |
| 13 | 42 | 0.48 | 10 | 0.26 | +http://www.semrush.com/bot.html |
| 14 | 40 | 0.46 | 4 | 0.10 | +http://fulltext.sblog.cz/ |
| 15 | 36 | 0.41 | 3 | 0.08 | +http://OpenLinkProfiler.org/bot |
| 16 | 30 | 0.34 | 5 | 0.13 | Windows XP |
| 17 | 28 | 0.32 | 23 | 0.59 | Windows 3.1 |
| 18 | 28 | 0.32 | 12 | 0.31 | +http://www.exabot.com/go/robot |
| 19 | 26 | 0.30 | 23 | 0.59 | Auto; Windows |
| 20 | 26 | 0.30 | 23 | 0.59 | MSIE 5.5; Windows NT 4.0 |
| 21 | 24 | 0.27 | 1 | 0.03 | +http://webmeup-crawler.com/ |
| 22 | 20 | 0.23 | 18 | 0.46 | http://www.bing.com/bingbot.htm |
| 23 | 18 | 0.21 | 18 | 0.46 | Windows CE |
| 24 | 17 | 0.19 | 17 | 0.44 | Windows 2000 |
| 25 | 17 | 0.19 | 17 | 0.44 | MSIE 5.5; Windows NT 5.0 |
| 26 | 16 | 0.18 | 1 | 0.03 | +https://www.aihitdata.com/about |
| 27 | 14 | 0.16 | 14 | 0.36 | Windows ME |
| 28 | 14 | 0.16 | 14 | 0.36 | ) - BrowseX (2.0.0 Windows |
| 29 | 12 | 0.14 | 1 | 0.03 | +https://www.lipperhey.com/en/about/ |
| 30 | 11 | 0.13 | 1 | 0.03 | +http://megaindex.com/crawler |
| 31 | 8 | 0.09 | 1 | 0.03 | +http://www.xovibot.net/ |
| 32 | 5 | 0.06 | 1 | 0.03 | +http://www.profound.net/domainappender |
| 33 | 4 | 0.05 | 2 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 34 | 3 | 0.03 | 3 | 0.08 | +http://domainsigma.com/robot |
| 35 | 2 | 0.02 | 0 | 0.00 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 36 | 2 | 0.02 | 2 | 0.05 | Linux i686 [unknown version] |
| 37 | 2 | 0.02 | 1 | 0.03 | +info@netcraft.com |
| 38 | 2 | 0.02 | 1 | 0.03 | +http://duckduckgo.com |
| 39 | 1 | 0.01 | 0 | 0.00 | Series 60 |
| 40 | 1 | 0.01 | 1 | 0.03 | Linux [unknown version] |
| 41 | 1 | 0.01 | 1 | 0.03 | X11 |
| 42 | 1 | 0.01 | 1 | 0.03 | Windows Phone OS 7.0; Trident/3.1; IEMob... |
