The answer
It removes repeated network work, which reduces load time, bandwidth usage, and server load for repeat visits.
Browser Cache and Web Performance Basics
Why is caching important for frontend performance?
More FAQs in Browser Cache and Web Performance Basics
Browser caching is when the browser stores a resource locally so it can reuse it on later requests instead of downloading it again.
Static assets like CSS, JavaScript, images, fonts, and sometimes API responses or HTML depending on cache headers.
It tells the browser how long a resource can be cached and whether it must be revalidated before reuse.
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