Browser caching is a technique used by web browsers to store copies of web pages, images, and other resources on a user's device. When you visit a website, your browser saves these files so that the next time you visit, it can load the page faster without having to download everything again from the internet. This speeds up your browsing experience and reduces the amount of data used. When a website is updated, the browser may not immediately fetch the new version if it still has the cached files. To ensure you see the latest content, you can clear your cache or refresh the page. This helps maintain an efficient balance between speed and up-to-date information.