What are cookies used for in internet browsing?

Cookies are small pieces of data stored on a user's device by a web browser while browsing a website. Their primary function is to store browsing information, which enhances the user's experience by remembering preferences, login details, and items placed in shopping carts. This personalization allows websites to provide a tailored experience, making navigation easier and more efficient for users.

For instance, when a user visits a site frequently, cookies can remember their previous interactions, such as language preferences or user settings. This results in a more cohesive and enjoyable browsing experience, as users do not need to re-enter information or recreate settings each time they visit the site.

While other choices mention aspects of internet functionality and security, they do not align with the key role of cookies in enhancing user experience. Cookies do not significantly improve computer performance, monitor internet speeds, or block malicious sites; those tasks are managed by different technologies and tools.