Manage caching. Must give clear instructions to the browser and staging servers how to cache this page.
The possible values are:
|public||the document is cached in all available caches|
|no-store||can be cached, but not stored in the archive|
|max-age = time, must-revalidate||It tells the browser how many seconds to store the document in the cache|
|private||cached by the browser, not cached by the proxy server|
|no-cache||prohibit caching (browser and proxy-server do not cache the document)|
|max-age = time, proxy-revalidate||Specifies how many seconds to store the document in the cache proxy server|
<! - for dynamic pages such as search results ->
< meta http-equiv = "Cache-Control" content = "no-cache, no-store, must-revalidate" >
<! - for public pages such as blog articles ->
< meta http-equiv = "Cache-Control" content = "public, max-age = 31536000" >
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