Glossary
Third-Party Cookie
A cookie set by a domain other than the one you're visiting, historically used for cross-site ad tracking — now deprecated.
Also known as: Third-party cookies · 3P cookie
A third-party cookie is set by a domain other than the site you are visiting, historically used to track users across sites for advertising.
Browser and regulatory changes have phased them out — see cookie deprecation. Creator commerce was built for this world: its first-party attribution needs no third-party cookies.