👉 Whitelists are lists that list items or categories that should be displayed on a web page, as they meet certain criteria. These include those that have been seen before, are recommended by other users, or are relevant to the content being displayed. The word "whitelist" is often used in computer science and refers to a set of data stored in memory that can only be accessed and modified by specific computers or users. For example, a website might display a list of books on its homepage, but it may not allow users to access these lists until they have logged in. The user's browser will check the "whitelist" for any new books that the user has already viewed, ensuring that only those are displayed on the webpage. This helps maintain the integrity of the content by preventing unauthorized access and ensures that the site is up-to-date with the latest information. Whitelists can also be used to limit access to certain types of content or features based on specific criteria, such as age restrictions for users under 13 or a particular language preference.