What is caching? | How is a website cached? | Cloudflare
https://www.cloudflare.com/learning/cdn/what-is-caching/
WebWeb browsers cache HTML files, JavaScript, and images in order to load websites more quickly, while DNS servers cache DNS records for faster lookups and CDN servers cache content to reduce latency. To understand how caches work, consider real-world caches of food and other supplies.
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