Cookies are small pieces of data stored by a website on a user's device, typically in the web browser, to remember information about their visit. They are used to enhance the user experience by saving preferences, login credentials, and browsing history. For example, cookies can remember your language preferences, shopping cart items, or login status, allowing you to navigate websites more smoothly without needing to re-enter information every time you visit.
Cookies can be categorized into different types, such as session cookies and persistent cookies. Session cookies are temporary and are deleted once you close your browser, while persistent cookies remain on your device for a set period, even after you leave the website. While cookies are essential for many features on websites, they also raise privacy concerns, as they can track browsing activity across different sites. As a result, many websites now notify users about their use of cookies and give them the option to manage their preferences, in compliance with privacy laws like the GDPR.