Home Data-Driven Thinking Ad IDs Kill The Cookie. What Then?

Ad IDs Kill The Cookie. What Then?

SHARE:

hulett“Data-Driven Thinking” is written by members of the media community and contains fresh ideas on the digital revolution in media.

Today’s column is written by Cameron Hulett, executive director at EMEA Undertone.

When Google revealed plans for its own Internet tracking technology – called AdID – to replace the cookie, it signalled the death knell for this much maligned piece of software code. Shortly afterward, Microsoft promised its own cookie alternative, with Apple and Facebook following suit.

It’s a poignant moment. While cookies have taken a battering in recent years, they are ubiquitous and are a current requirement for tracking Internet browsing, with marketers using them as a de facto tool to target advertisements across the Web.

However, in recent years cookies have come to be thought of as invasive, and today Apple’s Safari, Mozilla’s Firefox and Microsoft’s Internet Explorer 10 all either block them by default or made it easier for users to do so.

More importantly, from a commercial standpoint, is that cookies are largely restricted on mobile devices, a market that is growing at warp speed. These devices include Apple’s iPad and iPhones, and Android. This means the new tracking dynamics are being driven primarily by the increasing dominance of mobile advertising. Thus, mobile platforms are rendering the cookie obsolete because advertisers couldn’t track people across multiple platforms.

All For One, One For All

Where is all this leading? The tech giants will be fighting over the data that is created via their own tracking systems. However, there’s nothing new in this. The tech industry is characterised by innumerable spats and as we move forward there’ll be a battle to create an industrywide tracking standard that provides advertisers with the data they need to better target ads. Will one Ad ID become the de facto winner? Will all Ad IDs become interlinked? Or will privacy concerns delay the process enough for newer technologies to supersede it all?

Whatever happens, rival platforms will inevitably fall in line as this market matures.

What will happen then? The new breed of unique identifiers will enable marketers to connect the dots between devices, target better ads to individuals and attribute marketing spend with greater accuracy – no small feats.

On one level, this can be seen simply as an evolutionary step in which marketing endeavours are ultimately informed by greater reach and greater accuracy. In fact, unique IDs are arguably the only accurate way to unlock the marketing challenge of cross-screen devices. As the media space becomes increasingly fragmented, this is crucially important.

Follow Cameron Hulett (@cameronhulett) and AdExchanger (@adexchanger) on Twitter.

Must Read

Will OpenAI’s New Measurement Tools And Ads Manager Prove Its Worth As An Ad Channel?

OpenAI announced a CAPI, along with the public launch of its self-serve ads manager, as the latest features of its rapidly evolving ads business.

Scales and hands touching the bowls with index fingers from opposite sides. Arguments, evidence and tricks in trial. Concept of judging, trial and justice

The FTC Bars Kochava From Selling Sensitive Data Without Consent

It’s been nearly four years since the Federal Trade Commission first accused Kochava of selling highly sensitive location data. Now, the two have finally reached a settlement.

Comic: CTV Tracking

Upfronts Advertisers Say They Want Outcomes – And Amazon Licks Its Chops

Amazon has packaged a handful of upgrades to its ads measurement solutions, obviously catered to TV and streaming media advertisers.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters
AdExchanger Senior Editors Anthony Vargas and Alyssa Boyle.

POSSIBLE 2026: AdExchanger's Hot Takes

AdExchanger Senior Editors Alyssa Boyle and Anthony Vargas share their takeaways from three days chatting about agentic AI at POSSIBLE.

Reddit Reports A 75% Boost In Q1 Ad Revenue As It Reaches For 100 Million Daily US Users

Generative AI search has pushed traffic off a cliff across most of the internet, but not on social platforms. Reddit included.

POSSIBLE 2026: Can AI Help Agencies Finally Break Down Those Silos?

Domenic Venuto, indie agency Horizon Media’s chief product and data officer, sat down with AdExchanger during POSSIBLE at the Fontainebleau in Miami to unpack the role of AI in today’s media and advertising landscape.