| Used Operating Systems |
| 1 | 20848 | 74.59 | 2246 | 47.68 | Windows NT |
| 2 | 3250 | 11.63 | 95 | 2.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 1736 | 6.21 | 1623 | 34.45 | +http://www.baidu.com/search/spider.html |
| 4 | 892 | 3.19 | 337 | 7.15 | +http://www.google.com/bot.html |
| 5 | 506 | 1.81 | 263 | 5.58 | +http://www.bing.com/bingbot.htm |
| 6 | 200 | 0.72 | 55 | 1.17 | +http://yandex.com/bots |
| 7 | 67 | 0.24 | 7 | 0.15 | +http://ahrefs.com/robot/ |
| 8 | 61 | 0.22 | 6 | 0.13 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 57 | 0.20 | 6 | 0.13 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 35 | 0.13 | 2 | 0.04 | +http://webmeup-crawler.com/ |
| 11 | 34 | 0.12 | 2 | 0.04 | +http://www.seokicks.de/robot.html |
| 12 | 34 | 0.12 | 3 | 0.06 | Windows 98 |
| 13 | 24 | 0.09 | 2 | 0.04 | +http://advbot.net/bot.html |
| 14 | 22 | 0.08 | 3 | 0.06 | http://crawler.sistrix.net/ |
| 15 | 19 | 0.07 | 9 | 0.19 | +http://www.exabot.com/go/robot |
| 16 | 15 | 0.05 | 2 | 0.04 | +http://www.easou.com/search/spider.html |
| 17 | 14 | 0.05 | 5 | 0.11 | http://www.majestic12.co.uk/bot.php?+ |
| 18 | 13 | 0.05 | 1 | 0.02 | +http://www.aihitdata.com/about |
| 19 | 12 | 0.04 | 1 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 20 | 11 | 0.04 | 3 | 0.06 | +http://www.semrush.com/bot.html |
| 21 | 11 | 0.04 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 22 | 10 | 0.04 | 1 | 0.02 | Linux i586 [unknown version] |
| 23 | 9 | 0.03 | 9 | 0.19 | Windows 95 |
| 24 | 8 | 0.03 | 2 | 0.04 | +http://mercedes-w123.net |
| 25 | 7 | 0.03 | 1 | 0.02 | +http://www.profound.net/domainappender |
| 26 | 6 | 0.02 | 1 | 0.02 | Windows Phone 8.0; Trident/6.0; IEMobile... |
| 27 | 6 | 0.02 | 2 | 0.04 | +http://fulltext.sblog.cz/ |
| 28 | 5 | 0.02 | 1 | 0.02 | Android |
| 29 | 4 | 0.01 | 2 | 0.04 | MSIE 5.5; Windows NT 5.0 |
| 30 | 4 | 0.01 | 3 | 0.06 | +http://www.xovibot.net/ |
| 31 | 4 | 0.01 | 2 | 0.04 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 4 | 0.01 | 4 | 0.08 | +http://domainsigma.com/robot |
| 33 | 3 | 0.01 | 1 | 0.02 | +http://trumpetsheetmusic.org |
| 34 | 3 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 35 | 2 | 0.01 | 0 | 0.00 | documents; +http://docs.google.com |
| 36 | 2 | 0.01 | 0 | 0.00 | Series 60 |
| 37 | 2 | 0.01 | 2 | 0.04 | Windows CE |
| 38 | 2 | 0.01 | 2 | 0.04 | Linux i686 [unknown version] |
| 39 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 40 | 1 | 0.00 | 1 | 0.02 | Macintosh PPC |
| 41 | 1 | 0.00 | 0 | 0.00 | apps-presentations; +http://docs.google.... |
| 42 | 1 | 0.00 | 1 | 0.02 | Windows 3.1 |
| 43 | 1 | 0.00 | 1 | 0.02 | Windows ME |
| 44 | 1 | 0.00 | 1 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 45 | 1 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 46 | 1 | 0.00 | 1 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 47 | 1 | 0.00 | 1 | 0.02 | X11 |
