With s:cache you cache part of pages serverside - i.e. a dynamic part of a page that changes from time to time but is expensive to compute. With meta tags in html headers you cache whole pages clientside - you can tell the client to ask everytime if theres a newer version available, to use the current page for 24 hours, ... (have a look at the html spec)! Those 2 have nothing to do with each other. Simply use client side caching if your page hasn't changed and the client has the current version - this saves you cpu time & bandwith and cost just a bit of thinking ;) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4012477#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...