Cookies - first party and third party

The difference between First-Party and Third-Party Cookies

First party cookies First-party cookies either originate on or are sent by the website (the domain name) of the service currently being used. First-party cookies are commonly used to store information such as user preferences.

Third-party cookies Third-party cookies come from other websites or web services that may be connected to the site you are currently viewing. Third-party cookies are frequently used to track webpage use for advertising or other marketing purposes. Advertising content served into a webpage from somewhere outside that website (such as ‘sponsored links’ columns or banner advertising networks) usually use third-party cookies. Third-party cookies can be either persistent or session cookies.

Fourth-party cookies These are possible when a third party ad server delivers advertising using another party. A common situation is when a third party server is delivering advertising using formats such as Rich Media which are often streamed from another organisation. Cookies associated with the other organisation would be 'Fourth Party' cookies. reverse lookup

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