What are the best practices for using ETag headers?
An example of an AI chatbot conversation about ETag headers best practices.
What are the best practices for using ETag headers?
ETag headers are used for web cache validation. Best practices include using strong ETags, ensuring they are unique, and updating them when content changes.
Can you explain what a strong ETag is?
A strong ETag is a unique identifier for a specific version of a resource. It changes whenever the resource changes, ensuring clients get the latest version.
How do ETags improve performance?
ETags reduce bandwidth by allowing clients to cache resources. If the ETag matches, the server can respond with a 304 Not Modified status, saving data.
Are there any downsides to using ETags?
Yes, ETags can add overhead to server responses and may cause issues with proxies if not handled correctly. It's important to test their impact.
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