A cookie, also known as an HTTP cookie, web cookie, or browser cookie, is usually a small piece of data sent from a website and stored in a user's web browser while a user is browsing a website. When the user browses the same website in the future, the data stored in the cookie can be retrieved by the website to notify the website of the user's previous activity. They are typically used to make websites more functional, or work more efficiently, as well as to provide information to the owners of the site. Cookies allow websites to distinguish you from other users which can help provide you with a better experience when browsing the website.