i readout about "Leverage browser caching" setting up an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network. i do want to mention it in my webpages + CSS, sothat i can use static resources; and minimize the website loading time. so would you mind offering me more details over that..how do i do that... all i want to set up modify date and expiry date...where i can do so... thanks a lot....
You should do this from the .htaccess file on your hosting account. Here is a basic tutorial for a starting point: http://tutorialpedia.org/tutorials/Apache+enable+file+caching+with+htaccess.html If you are using wordpress, joomla or another CMS, there are plugins that can help you