Caching
Caching is the process of storing frequently accessed data in a temporary, fast-access location so that future requests for that data can be served much more quickly.
How it works
It works by keeping a copy of data, like a webpage or database query result, closer to the user or application after the first request. This matters because it dramatically reduces load times, decreases the workload on primary servers, and improves the overall responsiveness and scalability of software and websites.
Examples
- 1.A web browser storing images from a news site so the page loads faster on a repeat visit.
- 2.A SaaS application temporarily holding user profile information in memory to avoid querying the main database every time.
- 3.A content delivery network (CDN) caching popular videos on servers around the world for faster streaming.