Can cache busting improve website performance?

What is cache busting and how does it work?

Cache busting is a technique used to force browsers to load the latest version of a resource, like CSS or JavaScript files, instead of using a cached version. This is often done by changing the URL of the resource, such as adding a version number or a query string.

Can cache busting actually improve my website's performance?

Yes, cache busting can improve performance by ensuring users always receive the most up-to-date files, which can prevent issues caused by outdated resources. However, it should be used judiciously to avoid unnecessary loading times.

Are there any downsides to using cache busting?

One downside is that it can lead to increased load times if used too frequently, as users may have to download new files every time they visit. It's important to balance cache busting with effective caching strategies.

What are some best practices for implementing cache busting?

Best practices include using versioning in file names, implementing a proper cache-control policy, and only busting the cache when significant changes are made to resources.