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For example: a stable release of jQuery will never change until the next version. When that happens, the URL will change.
Also, images like a website logo can be cached and when it changes I simply change the URL that is used to call it.
The header I know of is
Expires: Tue, 01 Feb 2050 00:00:00 GMT
I believe there are one or more additional headers I can use to add to the caching for proxies and maybe there is something I don't know about.
Are there any other headers I should know about?
Granted the cache will get deleted beyond my control. But I want to cache as much as possible.
Also this does not cover CSS/JavaScript minify/compile and it also does not count image compression or content compression such as gzip.
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Cache-control is an HTTP header used to specify browser caching policies in both client requests and server responses. Policies include how a resource is cached, where it's cached and its maximum age before expiring (i.e., time to live).
Cache-Control is a HTTP cache header that contains a set of parameters to define the browser's caching policies in the client requests and server responses. When a client makes a request to the server, the browser can cache, or store copies of resources for faster access and lower latency.
The Cache-Control HTTP header field holds directives (instructions) — in both requests and responses — that control caching in browsers and shared caches (e.g. Proxies, CDNs).
Expires is HTTP/1.0 and HTTP/1.1 introduced the more versatile Cache-Control where you can not just specify an expiration date but also cacheability and revalidation.
I recommend you to read Mark Nottingham’s Caching Tutorial.
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