Privacy Sandbox

It might have been delayed, but the end of third-party tracking cookies is coming at the beginning of 2025, and businesses can’t afford to keep pretending otherwise. The good news is that thanks to this delay, there is still a small window of opportunity for companies to prepare for the cookieless future by engaging with the Google Chrome Privacy Sandbox.

In this media review, you can find out more about the latest Google announcements concerning the 3rd-party cookie phase out being postponed until 2024 [Note: In April 2024, it was further postponed until early 2025] and the tests expansion for the Privacy Sandbox for the Web, the news connected with Google’s Origin Trials and Topics API, as well as the reboot to the EU’s digital rulebook by the European parliament—DSA and DMA.

Google Chrome set an ambitious goal in their January 2020 announcement to have the key privacy-preserving advertising technologies deployed by late 2022 for the developer community to start adopting them. On June 24, Google released an updated timeline for the Privacy Sandbox and revealed a plan to phase out support for third-party cookies over a three month period starting mid-2023.

Six months ago, during IETF 111, Google engineers made it clear that they were approaching a new iteration of FLoC, which was related to site topics. Yesterday, they finally announced Topics API. The ad topics concept has also been explored by Meta engineers in their Ad Topic Hints proposal, which builds on user feedback to displayed ads. Also, the PAURAQUE proposal from NextRoll was proposed in such a way that users could define topics which are interesting for them and can be used for personalization.

We are already two months into “Mode B” testing of the Privacy Sandbox, with 3rd party cookies blocked on 1% of Chrome browsers worldwide. As part of our efforts to ensure the advertising industry retains effective tools without third party cookies, we have been actively experimenting with Privacy Sandbox tools. The results so far are encouraging, but there remains much to do.

In this Media Review, we describe Google’s announcement on the Single Origin Trial, Google’s Header Bidding, considerations about FLEDGE, and Tim Cook’s call for a federal data privacy law.