; http://en.wikipedia.org/wiki/User_agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322) Mozilla/5.0 (Windows; U; Windows NT 5.1; nl; rv:1.8) Gecko/20051107 Firefox/1.5 Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.12) Gecko/20080201 Firefox/2.0.0.12 Opera/9.0 (Windows NT 5.0; U; en) Lynx/2.8.4rel.1 libwww-FM/2.14 Mozilla/2.0 (compatible; Ask Jeeves/Teoma) Mozilla/3.0 (Slurp/si; slurp@inktomi.com; http://www.inktomi.com/slurp.html) Mozilla/5.0 (compatible; Yahoo! Slurp;http://help.yahoo.com/help/us/ysearch/slurp) Mozilla/5.0 (compatible; googlebot/2.1; +http://www.google.com/bot.html) Googlebot/2.1 (+http://www.google.com/bot.html) Googlebot-mobile msnbot/1.0 (+http://search.msn.com/msnbot.htm) Baiduspider ( http://www.baidu.com/search/spider.htm) Mozilla/4.0 (compatible; GoogleToolbar 4.0.1306.3130-big; Windows XP 5.1; MSIE 7.0.5730.11) Mozilla/4.0 (compatible; GoogleToolbar 4.0.1306.3130-big; Windows XP 5.1; MSIE 6.0.2900.2180)