use the Location attribute of the <%@ OutputCache %> to specify where a page is cached.
This attribute accepts the following values:
Any: The page is cached on the browser, proxy servers, and web server (the default value).
Client: The page is cached only on the browser.
Downstream: The page is cached on the browser and any proxy servers but not the web server.
None: The page is not cached.
Server: The page is cached on the web server but not the browser or any proxy servers.
ServerAndClient: The page is cached on the browser and web server, but not on any proxy servers.
<%@ Page Language="C#" %>
<%@ OutputCache Duration="3600" VaryByParam="none" Location="Client" %>
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Cache Location