What are some effective cache-busting methods?

What are some effective cache-busting methods?

Cache-busting methods are techniques used to ensure that users receive the most up-to-date version of a resource. Common methods include appending a version number or a timestamp to the file name, using query strings, or setting appropriate cache-control headers.

Can you explain how query strings work for cache-busting?

Sure! By adding a query string to the URL of a resource, like style.css?v=1.2, you can force the browser to fetch the latest version. When the version changes, the browser treats it as a new request.

Are there any downsides to using cache-busting methods?

Yes, frequent cache-busting can lead to increased load times and server requests, as users may not benefit from cached resources. It's important to balance freshness with performance.

What about using version numbers in file names?

Using version numbers in file names, like script.v1.js, is effective because it changes the URL whenever the file is updated, ensuring users always get the latest version without affecting other cached resources.