What is cache expiration and why is it important?

What is cache expiration and why is it important?

Cache expiration refers to the time period after which cached data is considered stale and needs to be refreshed. It's important because it ensures that users receive the most up-to-date content, improving user experience and performance.

How can I set cache expiration for my website?

You can set cache expiration using HTTP headers like 'Cache-Control' and 'Expires'. These headers tell browsers how long to store cached content.

What happens if I set the expiration time too long?

If the expiration time is set too long, users may see outdated content, which can lead to confusion and a poor user experience.

Are there best practices for cache expiration?

Yes, best practices include setting appropriate expiration times based on content type, using versioning for assets, and regularly reviewing cache policies.