Website Visitor Identification·16 min read·Anonymous Visitor Identification — Part 8 of 13
Third-Party Cookies Didn't Die. The Deprecation Did.
Google decided in April 2025 to keep third-party cookies in Chrome, then retired most of Privacy Sandbox that October. The cookieless migration much of the industry planned for is not happening in the form it was sold. This guide covers what was actually announced, why B2B visitor identification never depended on third-party cookies, what server-side collection does and does not fix, and how long each kind of signal really lasts.
