What are the different caching strategies in HTTP?

What are the different caching strategies in HTTP?

There are several caching strategies in HTTP, including public and private caching, cache-control directives, and ETags. Would you like to know more about a specific strategy?

Can you explain how cache-control directives work?

Cache-control directives are HTTP headers that specify how, and for how long, a resource should be cached. For example, 'max-age' defines the maximum amount of time a resource is considered fresh.

What is the difference between public and private caching?

Public caching allows shared caches to store the response, while private caching restricts it to a single user’s cache. This is useful for sensitive data.

How do ETags help with caching?

ETags are unique identifiers assigned to a specific version of a resource. They help clients determine if the cached version is still valid, reducing unnecessary data transfer.