Cookies can be subdivided based on their offspring, function and durability.
First party cookies are cookies set by a website visited by the user i.e. the website displayed in the address bar.
Third party cookies are cookies that are set by a domain other than the one being visited by the user. A third party cookie occurs when a user visits a website and a third party sets a cookie through that website (e.g. cookies placed by Google, Twitter and Facebook).
Functional cookies are cookies that ensure the proper functioning of the website (e.g. cookies for log-in or registration, language preferences). Functional cookies are logically first party cookies.
Non-functional cookies are cookies that can be set for statistical, social, targeting and commercial purposes. They are not related to the mere technical support of the website. Cookies with statistical purposes allow us to check which pages of the website you visit, where your computer is localized etc. Cookies with social purposes allow the user to share the content of the visited website through social media directly to others. Cookies with targeting purposes allow a creation of your profile based on your surfing behaviour so that the displayed advertisement will be adapted to your interests. Cookies with commercial purposes keep track of how many and which advertisements were displayed to a user. Non-functional cookies can be first party or third party cookies.
Persistent cookies are stored on a users’ device in between browser sessions which allow preferences or actions of the user to be remembered. The cookies are activated every time the user that set these cookies visits the website (e.g. cookies set by social media such as Twitter, Facebook, Google Analytics etc.) Most non-functional cookies are persistent cookies.