Cache busting refers to the process of ensuring that a website or application always displays the most up-to-date version of a file or resource, rather than relying on previously stored versions. This is achieved by adding a unique identifier or timestamp to the file’s URL, forcing the browser to retrieve the latest version from the server. This technique is commonly used to prevent users from seeing outdated or incorrect content, resulting in a smoother and more reliable browsing experience. In essence, cache busting is like a refresh button for your website, ensuring that your visitors always see the freshest and most accurate content.