Overview
Caching is the term for storing reusable responses in order to make subsequent requests faster. There are many different types of caching available, each of which has its own characteristics. Application caches and memory caches are both popular for their ability to speed up certain responses.
By storing relatively static data in the cache and serving it from the cache when requested, the application saves the time that would be required to generate the data from scratch every time. Caching can occur at different levels and places it in an application.