A cookie is a small piece of data that a website asks your browser to store on your computer or mobile device. The cookie allows the website to “remember” your actions or preferences over time.
Most browsers support cookies, but users can set their browsers to decline them and can delete them whenever they like.
Cookies can also be used for online behavioural target advertising and to show adverts relevant to something that the user searched for in the past.
A cookie can be classified by its lifespan and the domain to which it belongs. By lifespan, a cookie is either a:
As for the domain to which it belongs, there are either:
You can control and/or delete cookies as you wish – for details, see AllAboutCookies.org. You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.