Third-party cookies are a particular kind of cookie that are made by a domain other than the one that the user is visiting. These cookies are used to track user browsing patterns across several websites and/or show targeted ads. They can be used to compile thorough profiles of individuals' online behaviors because they save information including preferences, login information, and the contents of shopping carts. Third-party cookies can help to personalize the user experience, but they can also pose a privacy risk because they may be used to monitor a user's browsing history. Users should be aware of the operation of third-party cookies and take precautions to safeguard their online privacy.