Configure Page Output Caching in a web configuration file and apply the settings to multiple pages.
You can set the same caching properties in a Cache Profile as you can set in an individual page's <%@ OutputCache %> directive.
A Cache Profile named Cache1Hour that caches a page for one hour.
File: Web.Config
File: Default.aspx
<%@ Page Language="C#" %>
<%@ OutputCache CacheProfile="Cache1Hour" %>
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Output Cache Profile
<%= DateTime.Now.ToString("T") %>