I’ve just read this interesting post on how to speed up your web application with an automated system for working with browsers cache for your assets (CSS, JavaScript, images etc.).

Previously I’ve used query strings parameters within asset requests so that they act as a ‘cache bust’ parameter, these have usually been the source control revision number and is built into the release process. But I’ve never taken the step of force an expiry date on content that can be cached and the solution in the post is a lot more fine grained than my previous solutions. Something to consider for the future.