A cookie is a small piece of data that is stored on a user’s device (such as a computer, phone, or tablet) by a website they visit. Cookies are typically used to remember the user’s preferences, login information, or browsing history on that website. They can also be used for tracking user behavior and serving targeted advertising.
There are two main types of cookies: session cookies and persistent cookies. Session cookies are temporary and are deleted when the user closes their browser, while persistent cookies remain on the user’s device until they expire or are manually deleted.
Cookies can be useful for improving the user experience on a website, but they can also raise privacy concerns if they are used to track users without consent. Most web browsers allow users to control or delete cookies.