What are the best practices for setting cache headers?

What are the best practices for setting cache headers?

The best practices for setting cache headers include using appropriate cache-control directives, setting expiration dates, and leveraging ETags.

Can you explain what cache-control directives are?

Cache-control directives are HTTP headers that specify how, and for how long, the browser and other caches should store responses.

What is the difference between 'public' and 'private' cache-control?

'Public' allows any cache to store the response, while 'private' restricts it to a single user, preventing shared caches from storing it.

How do ETags work in cache management?

ETags are unique identifiers assigned to a specific version of a resource, allowing caches to validate if the resource has changed.