| Used Operating Systems |
| 1 | 7865 | 57.28 | 2903 | 44.61 | Windows NT |
| 2 | 2978 | 21.69 | 2758 | 42.38 | +http://www.baidu.com/search/spider.html |
| 3 | 794 | 5.78 | 242 | 3.72 | +http://www.google.com/bot.html |
| 4 | 690 | 5.03 | 51 | 0.78 | +http://yandex.com/bots |
| 5 | 193 | 1.41 | 97 | 1.49 | +http://www.bing.com/bingbot.htm |
| 6 | 181 | 1.32 | 107 | 1.64 | Windows 95 |
| 7 | 120 | 0.87 | 45 | 0.69 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 88 | 0.64 | 11 | 0.17 | +http://OpenLinkProfiler.org/bot |
| 9 | 71 | 0.52 | 31 | 0.48 | +http://help.coccoc.com/ |
| 10 | 68 | 0.50 | 17 | 0.26 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 67 | 0.49 | 19 | 0.29 | +http://fulltext.sblog.cz/ |
| 12 | 63 | 0.46 | 33 | 0.51 | +http://www.exabot.com/go/robot |
| 13 | 52 | 0.38 | 24 | 0.37 | help@moz.com |
| 14 | 47 | 0.34 | 11 | 0.17 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 45 | 0.33 | 34 | 0.52 | +http://www.easou.com/search/spider.html |
| 16 | 44 | 0.32 | 32 | 0.49 | +http://www.linkdex.com/about/bots/ |
| 17 | 40 | 0.29 | 2 | 0.03 | +http://www.descargarprogramagratis.com/ |
| 18 | 34 | 0.25 | 2 | 0.03 | X11 |
| 19 | 30 | 0.22 | 2 | 0.03 | +http://webmeup-crawler.com/ |
| 20 | 25 | 0.18 | 13 | 0.20 | Windows CE |
| 21 | 24 | 0.17 | 9 | 0.14 | Windows 98 |
| 22 | 21 | 0.15 | 10 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 23 | 19 | 0.14 | 1 | 0.02 | Android |
| 24 | 18 | 0.13 | 1 | 0.02 | J2ME/MIDP |
| 25 | 17 | 0.12 | 9 | 0.14 | Windows 2000 |
| 26 | 16 | 0.12 | 2 | 0.03 | http://www.searchmetrics.com/en/searchme... |
| 27 | 15 | 0.11 | 6 | 0.09 | Android 2.3.5 |
| 28 | 12 | 0.09 | 4 | 0.06 | Auto; Windows |
| 29 | 9 | 0.07 | 3 | 0.05 | Windows ME |
| 30 | 8 | 0.06 | 1 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 31 | 7 | 0.05 | 0 | 0.00 | Linux 2.4.x |
| 32 | 6 | 0.04 | 4 | 0.06 | +http://www.proximic.com/info/spider.php |
| 33 | 6 | 0.04 | 0 | 0.00 | Windows 9. |
| 34 | 6 | 0.04 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 35 | 6 | 0.04 | 2 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 36 | 6 | 0.04 | 4 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 37 | 5 | 0.04 | 0 | 0.00 | Linux [unknown version] |
| 38 | 4 | 0.03 | 1 | 0.02 | Windows XP |
| 39 | 4 | 0.03 | 4 | 0.06 | +http://www.loadtime.net/bot.html |
| 40 | 4 | 0.03 | 3 | 0.05 | +http://www.grapeshot.co.uk/crawler.php |
| 41 | 3 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 42 | 3 | 0.02 | 2 | 0.03 | http://www.google.com/bot.html |
| 43 | 2 | 0.01 | 0 | 0.00 | Win32 |
| 44 | 2 | 0.01 | 1 | 0.02 | http://crawler.sistrix.net/ |
| 45 | 2 | 0.01 | 1 | 0.02 | +http://www.openhose.org/bot.html |
| 46 | 2 | 0.01 | 0 | 0.00 | +http://image2play.com/ |
| 47 | 2 | 0.01 | 2 | 0.03 | Windows 3.1 |
| 48 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 49 | 1 | 0.01 | 0 | 0.00 | http://desktop.google.com/ |
| 50 | 1 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 51 | 1 | 0.01 | 1 | 0.02 | mailto: crawling@ubermetrics-technologie... |
| 52 | 1 | 0.01 | 1 | 0.02 | Intel Mac OS X 10.6 |
