Cookieless solutions? We've got you covered.

Over half of the open web is cookieless - and it's taking a chunk out of your programmatic advertising revenue.

With Quantcast technology, you'll drive maximum outcomes from your full audience, with or without third-party cookies. Simple.

More than half of open web consumers are already 'invisible' to marketers.

Third-party cookie-blocking movements from browsers, regulators, and consumers have caused a cookie-dependent ad ecosystem to fragment. Limiting ad campaign reach, measurement, and optimization opportunity.

We'll do for you what cookies never could.

Give programmatic advertising an upgrade with the Quantcast Advertising Platform.

Plan, activate, and measure audiences and campaigns with real-time accuracy third-party cookies can't match.

Prioritize clarity over crumbs

Sourcing real-time granular data from over 100m+ digital destinations, our platform generates unique, accurate, ever-evolving insights into audience behavior, interest, and intent.

The perfect recipe for reach and results

Powerful machine learning recognizes and acts on even the smallest online data signals, for full audience addressability. So you can drive the very best outcomes across the entire open web.

Quantcast delivers total audience addressability. Cross-channel, full-funnel.

Spend effectively and efficiently, everywhere.

Rediscover your most high-value consumers in the environments they love.

Finding audiences consistently across every channel gets you more bang for your buck - whatever your objective, cookies or not.

Measure what matters. Cookies or no cookies.

Understand the impact of your advertising in real time.

Accurately quantify and report on:
- Scale (e.g., spend, impressions)
- Reach (e.g., uniques, brand lift)
- Performance (e.g., clicks, conversions)

Relevance and accuracy, while respecting privacy.

Deliver relevant ads to the right audiences at the right moment.

Swap cookies for machine learning, numerous bidstream signals, our vast real-time dataset, and your own first-party data.

8000+ cookieless campaigns and counting...

Tried and tested cookieless solutions, built to drive impossible outcomes.

Quantcast gets advertisers ahead of the curve.

When Yokohama needed to reach tire shoppers in previously inaccessible environments, our cookieless technology didn't just double their reach – it delivered their most efficient quarter ever, with 46% lower CPA.

The cookieless technology you need to succeed

Now that audiences are no longer well-mapped by 'deterministic' signals like third-party cookies, you need a new way to find and understand them.

Quantcast's two decades of AI and machine learning innovation have resulted in powerful 'probabilistic' advertising technology, measuring the pulse of the open web in real time to predict audience behaviors with astonishing accuracy.

It's purpose built to deliver you the very best programmatic campaign reach and performance.

Mapping the open web

Large language models (LLMs) contextualize the open web's content into an organized digital library of categories and concepts, with an understanding of relational links between every topic and page.

Building audience blueprints

Billions of contextual and behavioral signals feed machine learning models to encapsulate, in real time, the ever-evolving behaviors of audiences browsing the open web. Omnichannel and full-funnel.

Cookieless measurement with Quantcast

Advertising's greatest challenge doesn't have to be yours.

Measure and report on audiences and campaigns, from brand to demand - with or without cookies.

The Future of Cookieless Measurement

In this playbook, you'll find guidance on the best ways to approach all-important cookieless measurement, including:

- Different types of measurement
- Best practices for marketers
- Recommendations for the future

A new era of probabilistic measurement

Hear from our Lead Product Manager about probabilistic measurement, and how its development will shift the marketing landscape - especially in a post-cookie world.

Cookieless FAQs

Why is Quantcast's cookieless advertising solution best-in-market?

Unlike other DSPs, Quantcast is not solely reliant on third-party data to help our customers reach their desired audience. Since 2021, we have built a suite of cookieless solutions that are tried and tested. We have the largest owned data set on the open web, and coupled with our multi-signal approach to the post-cookie world and AI and machine learning algorithms, we help our customers achieve results like no other platform.

Does cookieless advertising offer the same performance as cookie-based?

Cookieless advertising with Quantcast enhances overall performance by giving you access to new users, customers who you could not reach otherwise, at a lower cost. Cookieless prospecting is now the second best performing tactic on media plans after cookie-based retargeting.

How do you measure cookieless ads with Quantcast?

Our Q Pixel and conversion API allow us to collect site events and offline conversion events. Where we have deterministic conversion data through logged-in users, we use it to attribute conversions. When we do not, we calculate the probability an impression is linked to a conversion. To ensure scale and effectiveness, we leverage all signals available to inform our models. You can measure cookieless performance in terms of spend, impressions, uniques, clicks, and conversions, justifying investments in cookieless environments.

See what Quantcast can do for you.