| Used Operating Systems |
| 1 | 23989 | 88.49 | 4993 | 73.05 | Windows NT |
| 2 | 1301 | 4.80 | 1262 | 18.46 | +http://www.baidu.com/search/spider.html |
| 3 | 408 | 1.50 | 164 | 2.40 | +http://www.bing.com/bingbot.htm |
| 4 | 310 | 1.14 | 19 | 0.28 | +http://yandex.com/bots |
| 5 | 270 | 1.00 | 96 | 1.40 | +http://www.google.com/bot.html |
| 6 | 129 | 0.48 | 6 | 0.09 | X11 |
| 7 | 122 | 0.45 | 60 | 0.88 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 73 | 0.27 | 40 | 0.59 | Windows 98 |
| 9 | 71 | 0.26 | 7 | 0.10 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 54 | 0.20 | 3 | 0.04 | Android 2.3.5 |
| 11 | 52 | 0.19 | 42 | 0.61 | Windows 95 |
| 12 | 40 | 0.15 | 5 | 0.07 | +http://www.profound.net/urlappendbot.ht... |
| 13 | 34 | 0.13 | 17 | 0.25 | help@moz.com |
| 14 | 30 | 0.11 | 9 | 0.13 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 26 | 0.10 | 9 | 0.13 | +http://www.easou.com/search/spider.html |
| 16 | 22 | 0.08 | 11 | 0.16 | +http://www.career-x.de/bot.html |
| 17 | 21 | 0.08 | 3 | 0.04 | +http://www.seoprofiler.com/bot |
| 18 | 16 | 0.06 | 4 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 19 | 15 | 0.06 | 15 | 0.22 | MSIE 5.5; Windows NT 4.0 |
| 20 | 12 | 0.04 | 7 | 0.10 | Windows CE |
| 21 | 12 | 0.04 | 10 | 0.15 | Windows 2000 |
| 22 | 11 | 0.04 | 3 | 0.04 | +http://www.semrush.com/bot.html |
| 23 | 10 | 0.04 | 5 | 0.07 | Windows XP |
| 24 | 8 | 0.03 | 8 | 0.12 | Auto; Windows |
| 25 | 8 | 0.03 | 3 | 0.04 | http://crawler.sistrix.net/ |
| 26 | 8 | 0.03 | 6 | 0.09 | Windows ME |
| 27 | 8 | 0.03 | 4 | 0.06 | +http://www.exabot.com/go/robot |
| 28 | 6 | 0.02 | 0 | 0.00 | Macintosh PPC |
| 29 | 6 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 6 | 0.02 | 6 | 0.09 | ) - BrowseX (2.0.0 Windows |
| 31 | 5 | 0.02 | 0 | 0.00 | Linux 2.4.x |
| 32 | 4 | 0.01 | 4 | 0.06 | Windows 3.1 |
| 33 | 4 | 0.01 | 4 | 0.06 | MSIE 5.5; Windows NT 5.0 |
| 34 | 3 | 0.01 | 2 | 0.03 | +http://help.coccoc.com/ |
| 35 | 2 | 0.01 | 0 | 0.00 | Win32 |
| 36 | 2 | 0.01 | 1 | 0.01 | +http://www.netseer.com/crawler.html; cr... |
| 37 | 2 | 0.01 | 2 | 0.03 | Linux [unknown version] |
| 38 | 2 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 39 | 2 | 0.01 | 2 | 0.03 | Linux i686 [unknown version] |
| 40 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 41 | 2 | 0.01 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
| 42 | 1 | 0.00 | 0 | 0.00 | apps-presentations; +http://docs.google.... |
| 43 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.6 |
