http Headers influencing Caching - Tutorial / Documentation

Question

Can somebody point me to decent tutorial explaining the various http-header settings influencing caching (for proxies, the browser, their play-together and possible quirks in browsers and caching engines)

I think it is a somewhat neglected feature --- at least I do not make use of it. Caching CSS, JS and pictures (pretty much everything coming from the cookieless domain) should speed up things a bit.

Answer 1

Caching tutorial -- This is pretty good article describing HTTP caching process and related headers.

There is good article about Optimizing cache at Let's make the web faster website. All articles there are worth checking out.

To speed up a things, you can also:

• reduce number of requests needed to load your page
• compress for your HTTP responses
• combine your CSS/JS files together, and minimize them, for example by using YUI Compressor or Google Closure Compiler
• put small images into one big bundle so that they are loaded using single request ( online tool for putting images together)
• Implement SPDY support on your server -- that's probably not something you'll do, but it's interesting idea worth mentioning

Answer 2

在这里你可以找到规格，你可以参考。