What’s the difference between Expires and Cache-Control headers?

Cache-Control was introduced in HTTP/1.1 and offers more options than Expires They can be used to accomplish the same thing but the data value for Expires is an HTTP date whereas Cache-Control max-age lets you specify a relative amount of time so you could specify "X hours after the page was requested HTML Cache control is a very similar question and has a good link to a caching tutorial that should answer most of your questions (e. G mnot.net/cache_docs/#EXPIRES ). To sum up though Expires is recommended for static resources like images and Cache-Control when you need more control over how caching is done.

Cache-Control was introduced in HTTP/1.1 and offers more options than Expires. They can be used to accomplish the same thing but the data value for Expires is an HTTP date whereas Cache-Control max-age lets you specify a relative amount of time so you could specify "X hours after the page was requested". HTML Cache control is a very similar question and has a good link to a caching tutorial that should answer most of your questions (e.g. , mnot.net/cache_docs/#EXPIRES).

To sum up though, Expires is recommended for static resources like images and Cache-Control when you need more control over how caching is done.

Cache-Control was introduced in HTTP/1.1 and offers more options than Expires. They can be used to accomplish the same thing but the data value for Expires is an HTTP date whereas Cache-Control max-age lets you specify a relative amount of time so you could specify "X hours after the page was requested". HTML Cache control is a very similar question and has a good link to a caching tutorial that should answer most of your questions (e.g. To sum up though, Expires is recommended for static resources like images and Cache-Control when you need more control over how caching is done.

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