| Used Operating Systems by Visits |
| 1 | 1995 | 21.27 | 1783 | 47.89 | +http://www.baidu.com/search/spider.html |
| 2 | 3829 | 40.82 | 1085 | 29.14 | Windows NT |
| 3 | 683 | 7.28 | 293 | 7.87 | +http://www.bing.com/bingbot.htm |
| 4 | 388 | 4.14 | 149 | 4.00 | +http://www.google.com/bot.html |
| 5 | 1457 | 15.53 | 101 | 2.71 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 310 | 3.30 | 52 | 1.40 | +http://yandex.com/bots |
| 7 | 80 | 0.85 | 41 | 1.10 | +http://www.exabot.com/go/robot |
| 8 | 89 | 0.95 | 34 | 0.91 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 109 | 1.16 | 34 | 0.91 | +http://www.linkdex.com/about/bots/ |
| 10 | 77 | 0.82 | 31 | 0.83 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 97 | 1.03 | 31 | 0.83 | +http://www.linkdex.com/bots/ |
| 12 | 82 | 0.87 | 31 | 0.83 | help@moz.com |
| 13 | 36 | 0.38 | 15 | 0.40 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 22 | 0.23 | 9 | 0.24 | +http://fulltext.sblog.cz/ |
| 15 | 5 | 0.05 | 5 | 0.13 | +http://www.loadtime.net/bot.html |
| 16 | 7 | 0.07 | 4 | 0.11 | +http://help.coccoc.com/ |
| 17 | 3 | 0.03 | 3 | 0.08 | +http://pmoz.info/doc/botinfo.htm |
| 18 | 5 | 0.05 | 3 | 0.08 | +http://www.semrush.com/bot.html |
| 19 | 2 | 0.02 | 2 | 0.05 | +http://tweetmeme.com/ |
| 20 | 26 | 0.28 | 2 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 21 | 3 | 0.03 | 2 | 0.05 | +info@netcraft.com |
| 22 | 6 | 0.06 | 2 | 0.05 | Windows 98 |
| 23 | 1 | 0.01 | 1 | 0.03 | OpenBSD [unknown version] |
| 24 | 2 | 0.02 | 1 | 0.03 | +http://www.netseer.com/crawler.html; cr... |
| 25 | 2 | 0.02 | 1 | 0.03 | http://crawler.sistrix.net/ |
| 26 | 3 | 0.03 | 1 | 0.03 | +http://www.yunyun.com/spider.html |
| 27 | 1 | 0.01 | 1 | 0.03 | Windows 95 |
| 28 | 1 | 0.01 | 1 | 0.03 | Windows 3.1 |
| 29 | 2 | 0.02 | 1 | 0.03 | SpreadTrum |
| 30 | 1 | 0.01 | 1 | 0.03 | Linux i686 [unknown version] |
| 31 | 2 | 0.02 | 1 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 1 | 0.01 | 1 | 0.03 | WinHttp.WinHttpRequest.5 |
| 33 | 8 | 0.09 | 1 | 0.03 | +http://siteexplorer.info/ |
| 34 | 1 | 0.01 | 0 | 0.00 | http://desktop.google.com/ |
| 35 | 1 | 0.01 | 0 | 0.00 | Win32 |
| 36 | 1 | 0.01 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 37 | 1 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 38 | 4 | 0.04 | 0 | 0.00 | Linux 2.4.x |
| 39 | 24 | 0.26 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 40 | 8 | 0.09 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 41 | 4 | 0.04 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 42 | 1 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
