Home The Big Story The Third Delay For Third-Party Cookies Leaves Ad Tech In Limbo

The Third Delay For Third-Party Cookies Leaves Ad Tech In Limbo

SHARE:

Well, folks, it’s happened again. For the third time, Google pushed back its original deadline to remove third-party cookies from Chrome. On Tuesday, it said it would no longer remove cookies in 2024, and didn’t set a new deadline for removal.

On this week’s episode, the editorial team talks through this latest announcement from Google, and how the delay will affect the rest of ad tech’s plans to go cookieless.

But first, how did we get here? Leading up to this moment, it seemed like Google would finally quit cookies.

At the beginning of this year, Google removed cookies for 1% of Chrome traffic in January, which is more than it has done over the previous four years. With promises backed up by action, many believed Google’s assertion that it would fully remove cookies in the second half of 2024.

At the same time that Google was planning to deprecate third-party cookies, the pushback on its replacement, the Privacy Sandbox, intensified.

The IAB Tech Lab released a scathing report showing all the areas where its Privacy Sandbox Task Force deemed a replacement wasn’t ready in February. And industry testers shared a chorus of concerns about details of the Privacy Sandbox, from latency to its in-browser decisioning to its waterfall-like auction setup that seemed to preference Google. The business implications of these complicated technical details are still being untangled by the ad tech community.

Meanwhile, almost every ad tech company now has some sort of cookieless solution, with varying levels of performance or adoption. And other mobile browsers and apps don’t use cookies – but often, seem like they still can’t entice buyers to shift budget from cookie-enriched Chrome. With the latest pushback, ad tech remains in limbo. It’s a strange place to be. But we’re here with you to talk it out.

Must Read

Why 2025 Marked The End Of The Data Clean Room Era

A few years ago, “data clean rooms” were all the ad tech trades could talk about. Fast-forward to 2026, and maybe advertisers don’t need to know what a data clean room is after all.

The AI Search Reckoning Is Dismantling Open Web Traffic – And Publishers May Never Recover

Publishers have been losing 20%, 30% and in some cases even as much as 90% of their traffic and revenue over the past year due to the rise of zero-click AI search.

No Waiting for May – CES Is Where The TV Upfront Season Starts 

If any single event can be considered the jumping-off point for TV upfronts, it’s the Consumer Electronics Showcase (CES), which kicks off this week in Las Vegas, Nevada.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters
Comic: This Is Our Year

Comic: This Is Our Year

It’s been 15 years since this comic first ran in January 2011, and there’s something both quaint and timeless about it. Here’s to more (and more) transparency in 2026, and happy New Year!

From AI To SPO: The Top 10 AdExchanger Guest Columns Of 2025

The generative AI trend generated endless hot takes this year, but the ad industry also had plenty to say about growing competition between DSPs and SSPs. Here are AdExchanger’s top 10 most popular guest columns of 2025 and why they resonated.

Comic: Season's Beatings

Enjoy this weekly comic strip from AdExchanger.com that highlights the digital advertising ecosystem …