Systems and methods which provide an extensible caching framework are disclosed. These systems and methods may provide a caching framework which can evaluate individual parameters of a request for a particular piece of content. Modules capable of evaluating individual parameters of an incoming request may be added and removed from this framework. When a request for content is received parameters of the request can be evaluated by the framework and a cache searched for responsive content based upon this evaluation. If responsive content is not found in the cache, responsive content can be generated and stored in the cache along with associated metadata and a signature formed by the caching framework. This signature may aid in locating this content when a request for similar content is next received.