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Third‑Party Cookies

Tracking

Cookies set by a company you didn’t visit directly.

Definition

Third‑party cookies are created by a domain other than the site you’re visiting, often used by ad or tracking companies.

In plain English Cookies set by a company you didn’t visit directly.

Why this matters

Why it matters: They can follow you across many sites to build a profile.

Example

Example: A tracker sets the same cookie on many websites to recognize you.