Data
Third-Party Cookie
A third-party cookie is a cookie set by a domain other than the one a user is visiting, historically used for cross-site advertising, retargeting, and conversion tracking. As of June 2026 they remain available in Chrome: in April 2025 Google decided to maintain its existing approach of offering users third-party cookie controls in Chrome's settings rather than deprecating cookies by default or adding a standalone prompt — reversing its earlier phase-out plans. They are already blocked by default in Safari, Firefox, and Chrome's Incognito mode, so most marketers continue shifting to first-party and server-side measurement.
Source: privacysandbox.com
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