The term second-party cookie is not commonly used in the industry. It is not a cookie type, but rather a data-sharing agreement between two parties. Second-party data is collected by one company and shared with another company for mutual benefit. For example, a company that sells pet food might partner with a pet store to share data about their customers. The pet store can use this data to improve their marketing campaigns, while the pet food company can use it to better understand their target audience.
Definitions – Second-party cookie
