在Firefox下用web development插件查看header信息可以得到以下提示:
Server: nginx/0.7.63 Date: Sat, 26 Dec 2009 07:37:48 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding X-Powered-By: PHP/5.2.10 X-Pingback: http://www.eastdesign.cn/xmlrpc.php Expires: Wed, 11 Jan 1984 05:00:00 GMT Last-Modified: Sat, 26 Dec 2009 07:37:48 GMT Cache-Control: no-cache, must-revalidate, max-age=0 Pragma: no-cache Content-Encoding: gzip]]>