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http-headerscache-control

What's the difference Expires and Cache-control:max-age?

Could you tell me the difference of Expires and Cache-control:max-age?

Solution

  • Expires was defined in the HTTP/1.0 specifications, and Cache-Control in the HTTP/1.1 specifications.

    I would suggest defining both so you cater to both, the older clients that only understand HTTP/1.0, and the newer ones.