Cache / Caching
Caching is the process of storing the network data for future re-use in order to lower the time used to transfer such data in future requests.
The Cache is the data being stored for future requests.
Caching is an essential part of optimizing a website for SEO.
* With caching, certain pages that contain images, JavaScript and stylesheets, open much faster the second time, unless their expiration date has passes.