| Used Operating Systems by Visits |
| 1 | 6341 | 6.69 | 5677 | 48.50 | +http://www.baidu.com/search/spider.html |
| 2 | 60241 | 63.56 | 4026 | 34.40 | +http://www.bing.com/bingbot.htm |
| 3 | 18020 | 19.01 | 850 | 7.26 | Windows NT |
| 4 | 6708 | 7.08 | 591 | 5.05 | +http://www.google.com/bot.html |
| 5 | 286 | 0.30 | 119 | 1.02 | +http://discoveryengine.com/discobot.htm... |
| 6 | 476 | 0.50 | 110 | 0.94 | +http://yandex.com/bots |
| 7 | 305 | 0.32 | 68 | 0.58 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 293 | 0.31 | 47 | 0.40 | [email protected] |
| 9 | 551 | 0.58 | 27 | 0.23 | +http://ahrefs.com/robot/ |
| 10 | 24 | 0.03 | 22 | 0.19 | Windows 95 |
| 11 | 386 | 0.41 | 18 | 0.15 | http://crawler.sistrix.net/ |
| 12 | 28 | 0.03 | 15 | 0.13 | Windows 98 |
| 13 | 26 | 0.03 | 13 | 0.11 | Windows |
| 14 | 535 | 0.56 | 13 | 0.11 | Intel Mac OS X 10.6 |
| 15 | 244 | 0.26 | 12 | 0.10 | Linux i686 [unknown version] |
| 16 | 22 | 0.02 | 11 | 0.09 | +http://www.eventguru.com/spider.html |
| 17 | 19 | 0.02 | 11 | 0.09 | +http://www.exabot.com/go/robot |
| 18 | 16 | 0.02 | 10 | 0.09 | Windows 3.1 |
| 19 | 9 | 0.01 | 9 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 20 | 7 | 0.01 | 6 | 0.05 | Windows 2000 |
| 21 | 51 | 0.05 | 6 | 0.05 | J2ME/MIDP |
| 22 | 6 | 0.01 | 6 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 23 | 10 | 0.01 | 5 | 0.04 | +http://shoulu.jike.com/spider.html |
| 24 | 5 | 0.01 | 4 | 0.03 | [email protected] |
| 25 | 17 | 0.02 | 3 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 26 | 8 | 0.01 | 3 | 0.03 | +http://www.acoon.de/robot.asp |
| 27 | 2 | 0.00 | 2 | 0.02 | Windows CE |
| 28 | 2 | 0.00 | 2 | 0.02 | Linux [unknown version] |
| 29 | 2 | 0.00 | 2 | 0.02 | Windows ME |
| 30 | 2 | 0.00 | 2 | 0.02 | SunOS sun4u |
| 31 | 5 | 0.01 | 2 | 0.02 | X11 |
| 32 | 30 | 0.03 | 1 | 0.01 | PPC Mac OS X 10.4 |
| 33 | 10 | 0.01 | 1 | 0.01 | +http://www.warebay.com/bot.html |
| 34 | 33 | 0.03 | 1 | 0.01 | +http://www.aihit.com/ |
| 35 | 1 | 0.00 | 1 | 0.01 | X11; Linux i686; en |
| 36 | 2 | 0.00 | 1 | 0.01 | Linux 2.4.x |
| 37 | 1 | 0.00 | 1 | 0.01 | +http://tweetmeme.com/ |
| 38 | 3 | 0.00 | 1 | 0.01 | Windows XP |
| 39 | 7 | 0.01 | 1 | 0.01 | Windows Phone OS 7.5 |
| 40 | 1 | 0.00 | 1 | 0.01 | OpenSolaris |
| 41 | 1 | 0.00 | 1 | 0.01 | +http://www.sharegloo.com |
| 42 | 18 | 0.02 | 1 | 0.01 | Macintosh |
| 43 | 1 | 0.00 | 1 | 0.01 | +http://eripp.com |
| 44 | 2 | 0.00 | 1 | 0.01 | +http://domains.checkparams.com/ |
| 45 | 2 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 46 | 1 | 0.00 | 0 | 0.00 | Series 60 |
| 47 | 2 | 0.00 | 0 | 0.00 | BlackBerry |
| 48 | 1 | 0.00 | 0 | 0.00 | Android |
| 49 | 2 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 50 | 1 | 0.00 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 51 | 2 | 0.00 | 0 | 0.00 | http://site.uta.la/ |
| 52 | 7 | 0.01 | 0 | 0.00 | PPC Mac OS X 10.5 |
| 53 | 1 | 0.00 | 0 | 0.00 | PPC Mac OS X Mach-O |
