HTTP caching is the process of storing web server responses (e.g. HTML, images, CSS files) in a temporary storage location (cache), so that subsequent requests for the same content can be served faster. Caching is important because it reduces the amount of time needed to access and retrieve data from a server, thereby speeding up web page load times and improving the user experience. When a client (e.g. web browser) makes a request for a resource that is cached, instead of retrieving the resource again from the server, the cached version is returned to the client. This reduces the network traffic and server load, thereby making the site faster and more responsive.
