Kacper Polewiak

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.

This edition of the Cookieless Newsroom highlights intensifying regulatory scrutiny of Big Tech in Europe and growing momentum around privacy-preserving infrastructure in AdTech. Meanwhile, major platforms like Netflix and Spotify are building their own ad ecosystems to seize more control over monetization.

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.

In this Media Review, we focus on the Privacy Sandbox: the status of the current Origin Trials, the progress of the tools not currently in testing, the critique for Topics from the industry, and the news from Google Marketing Live around both the Web and Android Privacy Sandbox.

• Contextual SDA passed both quality tests we performed and described in this article
• The mechanisms we used to assess the contextual SDA signals’ quality were: SSPs’ audiences sent via Deal IDs and RTB House’s proprietary ContextAI engine

Have you heard of Seller-Defined Audiences (SDA) yet? SDA was released at the beginning of 2022 by Project Rearc – an initiative that came to life as the IAB Tech Lab’s answer to the impending demise of 3rd-party cookies. Although a year hasn’t passed since its release, SDA has received significant attention in the press and industry conferences and is considered one of the go-to solutions for targeting when the 3rd-party cookie pond dries up.