| Used Operating Systems |
| 1 | 7259 | 28.32 | 273 | 3.38 | +http://yandex.com/bots |
| 2 | 4962 | 19.36 | 3819 | 47.33 | +http://www.baidu.com/search/spider.html |
| 3 | 3060 | 11.94 | 855 | 10.60 | +http://www.google.com/bot.html |
| 4 | 2371 | 9.25 | 1694 | 20.99 | +http://www.bing.com/bingbot.htm |
| 5 | 2207 | 8.61 | 734 | 9.10 | Windows NT |
| 6 | 1815 | 7.08 | 100 | 1.24 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 781 | 3.05 | 80 | 0.99 | +http://discoveryengine.com/discobot.htm... |
| 8 | 737 | 2.87 | 1 | 0.01 | +http://www.warebay.com/bot.html |
| 9 | 549 | 2.14 | 9 | 0.11 | http://crawler.sistrix.net/ |
| 10 | 374 | 1.46 | 29 | 0.36 | ezooms.bot@gmail.com |
| 11 | 340 | 1.33 | 137 | 1.70 | +http://ahrefs.com/robot/ |
| 12 | 328 | 1.28 | 127 | 1.57 | +http://shoulu.jike.com/spider.html |
| 13 | 312 | 1.22 | 0 | 0.00 | http://www.youdao.com/help/webmaster/spi... |
| 14 | 111 | 0.43 | 52 | 0.64 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 107 | 0.42 | 61 | 0.76 | +http://www.exabot.com/go/robot |
| 16 | 72 | 0.28 | 0 | 0.00 | America Online Browser 1.1; rev1.1; Wind... |
| 17 | 46 | 0.18 | 21 | 0.26 | Windows 98 |
| 18 | 37 | 0.14 | 7 | 0.09 | Linux i686 [unknown version] |
| 19 | 25 | 0.10 | 12 | 0.15 | Windows 95 |
| 20 | 22 | 0.09 | 11 | 0.14 | +http://www.eventguru.com/spider.html |
| 21 | 18 | 0.07 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 22 | 11 | 0.04 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 23 | 10 | 0.04 | 5 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 24 | 8 | 0.03 | 4 | 0.05 | Windows CE |
| 25 | 8 | 0.03 | 1 | 0.01 | crawler@nigma.ru |
| 26 | 7 | 0.03 | 4 | 0.05 | Windows 2000 |
| 27 | 7 | 0.03 | 5 | 0.06 | Linux [unknown version] |
| 28 | 7 | 0.03 | 4 | 0.05 | Windows XP |
| 29 | 7 | 0.03 | 4 | 0.05 | Windows 3.1 |
| 30 | 7 | 0.03 | 4 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 31 | 5 | 0.02 | 0 | 0.00 | http://desktop.google.com/ |
| 32 | 5 | 0.02 | 3 | 0.04 | Windows ME |
| 33 | 4 | 0.02 | 1 | 0.01 | +http://www.hailoo.com/spider.html |
| 34 | 4 | 0.02 | 2 | 0.02 | Intel Mac OS X 10.6 |
| 35 | 3 | 0.01 | 1 | 0.01 | Intel Mac OS X 10.5 |
| 36 | 2 | 0.01 | 2 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 37 | 2 | 0.01 | 2 | 0.02 | +http://www.marketwire.com |
| 38 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 39 | 1 | 0.00 | 1 | 0.01 | OpenBSD [unknown version] |
| 40 | 1 | 0.00 | 1 | 0.01 | X11 |
| 41 | 1 | 0.00 | 1 | 0.01 | SunOS sun4u |
