Caching is the process of temporarily storing data, files, or processing results on high-speed storage media to speed up subsequent access to them. Caching reduces web page loading times and reduces server load.

The purpose of caching is to increase site speed, optimize server resource usage, and improve user experience. This is especially important for sites with a large number of visitors or dynamic content.

In the IT context, caching is applied at the browser, server, CDN (Content Delivery Network) and database levels. It is used to optimize the performance of web projects, speed up content display and reduce request processing costs.

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