
The cookieless future is here, and it’s time to start thinking about how you will adapt your strategies to this new reality. In a cookieless world, you will need to find new ways to identify and track users across devices. This will require reliance on first-party data, contextual advertising, and alternative identifiers that respect user privacy.
To shed light on this topic, we hosted a panel discussion at Cannes, featuring industry leaders from Cint, Direct Digital Holdings, the IAB, MiQ, Tatari, and Experian.

In this blog post, we’ll explore the future of identity in cookieless advertising. We’ll discuss the challenges and opportunities that this new era presents, and we’ll offer our tips for how to stay ahead of the curve.
How cookieless advertising is evolving
Programmatic advertising is experiencing multiple changes. Let’s dive into three key things you should know.
Cookie deprecation
One significant change is cookie deprecation, which has implications for tracking and targeting. Additionally, understanding the concept of Return on Advertising Spend (ROAS) is becoming increasingly crucial.
The demand and supply-side are coming closer together
Demand-side platforms (DSPs) and supply-side platforms (SSPs) have traditionally been seen as two separate entities. DSPs are used by advertisers to buy ad space, while SSPs are used by publishers to sell ad space. However, in recent years, there has been a trend toward the two sides coming closer together.
This is due to three key factors:
The rise of header bidding
Header bidding is a process where publishers sell their ad space to multiple buyers in a single auction. This allows publishers to get the best possible price for their ad space, and it also allows advertisers to target their ads more effectively.
Cookie deprecation
As third-party cookies are phased out, advertisers need to find new ways to track users, and they are turning to SSPs for help. SSPs can provide advertisers with data about users, such as their demographics and interests. This data can be used to target ads more effectively.
The increasing importance of data
Advertisers are increasingly looking for ways to target their ads more effectively, and they need data to do this. SSPs have access to a wealth of user data, and they’re willing to share this data with advertisers. This is helping to bridge the gap between the two sides.
The trend toward the demand-side and supply-side coming closer together is good news for advertisers and publishers. It means that they can work together to deliver more relevant ads to their users.
Measuring and tracking diverse types of media
The media measurement landscape is rapidly evolving to accommodate new types of media, such as digital out-of-home (DOOH). With ad inventory expanding comes the challenge of establishing identities and connecting them with what advertisers and agencies want to track.
Measurement providers are now being asked to accurately capture instances when individuals are exposed to advertisements at a bus stop in New York City, for example, and tracking their journey and purchase decisions, such as buying a Pepsi.
To navigate cookieless advertising and measurement, we must prioritize building a strong foundational identity framework.
What you should focus on in a cookieless advertising era
In a cookieless advertising era, you will need to focus on two key things: frequency capping and authentic identity.
Frequency capping
Frequency capping is a practice of limiting the number of times an ad is shown to a user. This is important in cookieless advertising because it helps to prevent users from being bombarded with ads. It also helps to ensure that ads are more effective, as users are less likely to ignore or click on ads that they have seen too many times.
Frequency capping is often overhyped and yet overlooked. Instead of solely focusing on frequency, consider approaching it from an identity perspective. One solution could be to achieve a perfect balance between reaching a wider audience and avoiding excessive repetition. By increasing reach in every programmatic buy, you naturally mitigate frequency control concerns.
Authentic identity
The need for authentic identities in a digital and programmatic ecosystem is undeniable. While we explore ways to connect cookies, mobile ads, and other elements, it’s crucial to remember who we are as real individuals. By using anonymized personal identifying information (PII) as a foundation, we can derive insights about households and individuals and set effective frequency caps across different channels.
Don’t solely focus on devices and behaviors in your cookieless advertising strategy and remember the true value of people and their identities.
What’s next for cookieless advertising?
The deprecation of third-party cookies is a major challenge for the digital advertising industry. Advertisers will need to find new ways to track users and target their ads.
Here are three specific trends that we can expect to see in cookieless advertising.
First-party data is moving in-house
Many major media companies, equipped with valuable identifier and first-party data, are choosing to bring it in-house. They are focused on using their data internally rather than sharing it externally.
“Many larger media companies are opting to bring their identifier and first-party data in-house, creating more walled gardens. It seems that companies are prioritizing data control within their own walls instead of sharing it externally.”
laura manning, svp, measurement, cint
Fragmentation will continue
The number of identifiers used to track people online is growing rapidly. In an average household, over a 60-day period, there are 22 different identifiers present. This number is only going to increase as we move away from cookies and toward other identifiers.
This fragmentation makes it difficult to track people accurately and deliver targeted advertising. This means that we need new identity solutions that can help make sense of these new identifiers and provide a more accurate view of people.
A portfolio of solutions will address signal loss
Advertisers are taking a variety of approaches to cookieless advertising. A few of the solutions include:
- Working with alternative IDs.This refers to using alternative identifiers to cookies, such as mobile device IDs or email addresses. These identifiers can be used to track people across different websites and devices, even without cookies.
- Working with data index at a geo level. This refers to using data from a third-party provider to get a better understanding of people’s location. This information can be used to target ads more effectively.
- Working with publisher first-party data that’s been aggregated to a cohort level. This refers to using data that is collected directly from publishers, such as website traffic data or purchase history. This data can be used to create more personalized ads.
- Working with contextual solutions. This refers to using contextual data, such as the content of a website or the weather, to target ads. This can help to ensure that ads are relevant to the user’s interests.
“Cookie deprecation is often exaggerated, and alternate solutions are already emerging. As data moves closer to publishers and first-party data gains prominence, the industry will adapt to the changes.”
mark walker, ceo, direct digital holdings
There is no one-size-fits-all solution for cookies, and you will need to be flexible and adopt a variety of different approaches.
How will these solutions work together?
You can take a waterfall approach to cookieless advertising. A waterfall approach is a process where advertisers bid on ad impressions in sequential order. The first advertiser to meet the minimum bid price wins the impression.
In the context of cookieless advertising, a waterfall approach can be used to prioritize different targeting signals. For example, you might start by bidding on impressions that have a Ramp ID, then move on to impressions that have a geo-contextual signal, and finally bid on impressions that have no signal at all.
This is a flexible approach that can be adapted to different needs and budgets.
Watch our Cannes panel for more on cookieless advertising

We hosted a panel in Cannes that covered the future of identity in cookieless advertising. Check out the full recording below to hear what leaders from Cint, Direct Digital Holdings, the IAB, MiQ, Tatari, and Experian had to say.
Check out more Cannes content:
- Our key takeaways from Cannes Lions 2023
- Insights from a first-time attendee
- Four new marketing strategies for 2023
- Exploring the opportunities in streaming TV advertising
- Maximize ad targeting with supply-side advertising
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The stakes are high when it comes to advertising during football’s biggest games as the cost of advertising continues to rise, with the average 30-second TV ad during the 2023-24 Sunday Night Football season priced at $882K. With record viewership at the College Football Playoff and the Super Bowl drawing in 123.7 million average viewers, the largest TV audience on record, it's no surprise that brands are willing to pay those prices since football games are prime time for reaching engaged audiences. In fact, an estimated 51% of viewers search for an ad they saw during the game, underscoring the potential of second-screen engagement to amplify campaign impact. Whether you advertise on TV during these games or not, brands are exploring how they can use football season to drive a deeper connection to their audience. To do this, brands need data driven strategies. In this blog post, we’ll reveal audience segments designed for you to craft tailored marketing strategies that resonate with football fans in the stands and on the couch. You can find the complete audience segment name in the appendix. Make a game-winning play with Experian Audiences With playoff season fast approaching, it’s the perfect time to go on the offensive and target football fans. Utilize Experian’s syndicated audiences to ensure your marketing messages resonate with fans when they're the most engaged. Experian's 2,400+ syndicated audiences are available directly on over 30 leading television, social, and programmatic advertising platforms. Reach consumers based on who they are, where they live, and what they do using data ranked #1 in accuracy by Truthset. Run omnichannel campaigns based on a reliable understanding of households, people, digital identifiers, and marketing attributes. Four football audience categories to add to your advertising lineup Football fans come in all shapes, sizes, and viewing habits. From dedicated supporters to casual viewers, targeting the right audience can make or break your campaign. Here are four football audience categories you can target: Sports enthusiasts College football fans 21+ audiences TV viewers Let’s huddle up and break down the audience segments within each category. Whether it’s tailgating, tuning in, or cheering from the stands, these insights will get your campaign into the end zone. Sports enthusiasts Whether they’re following their favorite teams, attending games in person, or watching professional sports events on TV, football fans are deeply engaged, making them an ideal target for advertisers looking to score big. Here are five audiences to target: NFL Enthusiasts Football (FLA/Fair Lending Friendly)1 Sports Enthusiasts NFL Stadium Visitors Professionals Sports Event College football fans College football fans bring unmatched passion and loyalty, with bowl games during the 2023 season drawing on average of 4.6 million viewers across 40 total games—a 5% increase year-over-year. From students to alumni, these fans represent an invaluable opportunity for advertisers to connect with a deeply invested audience. Here are four audiences to target to connect with passionate college football fans: College Football Stadium Visitors College Football Bowls College Students College Sports Venues 21+ audiences With 84% of U.S adults reporting that they drink alcohol while watching football on TV, targeting 21+ audiences during game season is a winning play. Whether they’re cracking open a cold one at a tailgate, hosting a game-day party, or relaxing on the couch, these audiences represent a key audience for brands looking to tap into football culture. Here are four audiences that you can target this post season: Imported Light Beer Enthusiasts Domestic/Imported Beer High-end Spirit Drinkers Discretionary spend: Alcohol and wine $331 – $726 These audiences can help you serve up campaigns that pour directly into the heart of football fandom. TV viewers Football games attract some of the most engaged and diverse TV audiences, with 85% of sports fans preferring to watch live sports on TV rather than in-person. Notably, for the first time, viewers aged 18 to 49 spent the majority of their sports viewing time (54%) via streaming. This shift highlights the immense opportunity for advertisers to connect with highly attentive viewers tuned into every play. Here are seven audiences that you can use to create a game-winning strategy to reach engaged TV watching football fans: Cable Satellite or Streaming Network Subscribers Streaming Video: High Spenders Cord Cutters Cable and Streaming TV Service Subscribers Paid TV High Spenders Screen Size – Large Co-Watchers Whether they're catching the action on a large TV screen or streaming from their phone, these audiences will help you craft campaigns that deliver results with highly engaged viewers. Score big with Experian this postseason As some of football’s biggest games approach, it’s time to huddle up and connect with consumers who live for the thrill of the game. Whether they’re tuning in to cheer for their favorite teams, tailgating with friends, or enjoying the game-day experience from home, Experian Marketing Data provides the playbook to score big with targeting, enrichment, and activation. With Experian’s data-driven insights, you can turn every opportunity into a game-winning play! Connect with our audience team You can activate our syndicated audiences on-the-shelf of most major platforms. For a full list of Experian’s syndicated audiences and activation destinations, download our syndicated audiences guide. Explore our other seasonal audiences that you can activate today. View now 1 “Fair Lending Friendly” indicates data fields that Experian has made available without use of certain demographic attributes that may increase the likelihood of discriminatory practices prohibited by the Fair Housing Act (“FHA”) and Equal Credit Opportunity Act (“ECOA”). These excluded attributes include, but may not be limited to, race, color, religion, national origin, sex, marital status, age, disability, handicap, family status, ancestry, sexual orientation, unfavorable military discharge, and gender. Experian’s provision of Fair Lending Friendly indicators does not constitute legal advice or otherwise assures your compliance with the FHA, ECOA, or any other applicable laws. Clients should seek legal advice with respect to your use of data in connection with lending decisions or application and compliance with applicable laws. Appendix Sports enthusiasts Lifestyle and Interests (Affinity) > Activities and Entertainment > NFL Enthusiasts Lifestyle and Interests (Affinity) > Sports and Recreation > Sports Enthusiast Mobile Location Models > Visits > NFL Stadium Visitors Lifestyle and Interests (Affinity) > Sports > Football (FLA / Fair Lending Friendly)2 Travel Intent > Activities > Professional Sports Event College sports fans Mobile Location Models > Visits > University Stadium College Football Visitor Lifestyle and Interests (Affinity) > Sports > College Football Bowls Mobile Location Models > Visits > College Students Mobile Location Models > Visits > College Sport Venues 21+ audiences Lifestyle and Interests (Affinity) > Activities and Entertainment > Imported Light Beer Enthusiasts Lifestyle and Interests (Affinity) > In-Market > Domestic/Imported Beer Lifestyle and Interests (Affinity) > Retail > High-end Spirit Drinkers Financial – Analytics IQ > Discretionary Spend > Alcohol and Wine: $331-$726 TV viewers Television (TV) > Household/Family Viewing > Cable Satellite or Streaming Network Subscribers Retail Shoppers: Purchase Based > Entertainment > Streaming/Video/Audio/CTV/Cable TV: Streaming Video: High Spenders Television (TV) > Household/Family Viewing > Cord Cutters Television (TV) > Household/Family Viewing > Cable and Streaming Service Subscribers Television (TV) > TV Enthusiasts > Paid TV High Spenders Television (TV) > Viewing Device Type > Screen Size – Large Television (TV) > Household/Family Viewing > Co-Watchers Latest posts

Following the success of our recent launch of Third-Party Onboarding, we are excited to introduce the Experian marketplace, a new addition to our portfolio of data-driven activation solutions. Experian’s marketplace bridges TV operators, programmers, supply partners, and demand platforms with top-tier third-party audiences across retail, CPG, health, B2B, and location intelligence. Easily activate premium audiences from leaders like Attain, Alliant, Circana, and Dun & Bradstreet – driving precise, efficient consumer reach. "Experian has been a longstanding partner of DISH Media, and we’re excited to be an early adopter of their marketplace which leverages the foundation of their identity solutions to ensure maximum cross-channel reach as we look to expand the breadth and depth of data we use for addressable TV."Kemal Bokhari, Head of Data, Measurement & Analytics, DISH Media As privacy regulations evolve and traditional identity signals shift, many activation platforms face declining addressability. This impacts their ability to effectively reach consumers, which is critical to staying competitive. Experian’s marketplace, powered by our identity graphs which include 126 million households, 250 million individuals, and 4 billion active digital IDs, enables audiences to be easily activated and maintain high addressability across display, mobile, and connected TV (CTV) channels. Benefits of Experian's marketplace Enhanced addressability and match rates: All audiences delivered from our marketplace benefit from our best-in-class offline and digital identity graphs, which ensure addressability across all channels like display, mobile, and CTV. Unlike other data marketplaces, Experian ensures all identifiers associated with an audience have been active and are targetable, improving the accuracy of audience planning. Simplified audience planning and distribution for TV Operators: TV operators can build custom audiences matched directly to their subscriber footprint and distribute them across all advanced TV channels (data-driven linear, addressable, digital, and CTV) for maximum impact. Diversification within the data marketplace ecosystem: With the recent departure of Oracle’s advertising business, the optionality for buyers and sellers to connect with third-party data has become increasingly limited. With Experian marketplace, we’re excited to offer a new solution to the market that ensures data-driven targeting can continue to take place at scale. Lower activation costs: Experian’s marketplace offers transparent, pass-through pricing with no additional access fees, enabling partners to maximize their earnings while reducing costs. Audience diversity and scale: Platforms can access a broad range of audiences across top verticals from our partner audiences, which can be combined with 2,400+ Experian Audiences. This offers the flexibility, reach, and scale necessary to effectively execute advertising campaigns. Remove compliance concerns: Experian’s rigorous data partner review ensures available audiences comply to all federal, state and local consumer privacy regulations. “Circana and Experian have enjoyed a deep partnership for over a decade. We are exceedingly excited to extend our partnership and be an early adopter and launch partner of the Experian data marketplace. This additional capability will enable the ecosystem to more easily access Circana’s purchase-based CPG and General Merchandise (for example Consumer Electronics, Toys, Beauty, Apparel etc.) audience segments to drive performance outcomes across all media channels.”Patty Altman, President, Global Solutions, Circana “Capturing the attention of target audiences across channels is critical for marketers navigating an increasingly connected digital world. We are excited to be an exclusive provider of B2B solutions within Experian’s marketplace, helping brands and media agencies to accelerate their reach, addressability and targeting capabilities across TV, mobile and connected TV channels.” Georgina Bankier, VP of Platform Partnerships at Dun & Bradstreet Better connections start here: Experian's marketplace Experian’s marketplace, easily accessible from our Audience Engine platform, brings unparalleled addressability, enabling our clients to reach more relevant consumers and increase revenue. If you’re interested in learning more about Experian’s marketplace or becoming an active buyer or seller in our marketplace, please contact us. Contact us Latest posts

2024 marked a significant year. AI became integral to our workflows, commerce and retail media networks soared, and Google did not deprecate cookies. Amidst these changes, ID bridging emerged as a hot topic, raising questions around identity reliability and transparency, which necessitated industry-wide standards. We believe the latest IAB OpenRTB specifications, produced in conjunction with supply and demand-side partners, set up the advertising industry for more transparent and effective practices. So, what exactly is ID bridging? As signals, like third-party cookies, fade, ID bridging emerged as a way for the supply-side to offer addressability to the demand-side. ID bridging is the supply-side practice of connecting the dots between available signals, that were generated in a way that is not the expected default behavior, to understand a user’s identity and communicate it to prospective buyers. It enables the supply-side to extend user identification beyond the scope of one browser or device. Imagine you visit a popular sports website on your laptop using Chrome. Later, you use the same device to visit the same sports website, but this time, on Safari. By using identity resolution tools, a supply-side partner can infer that both visits are likely from the same user and communicate with them as such. ID bridging is not inherently a bad thing. However, the practice has sparked debate, as buyers want full transparency into the use of a deterministic identifier versus an inferred one. This complicates measurement and frequency capping for the demand-side. Before OpenRTB 2.6, ID bridging led to misattribution as the demand-side could not attribute ad exposures, which had been served to a bridged ID, to a conversion, which had an ID different from the ad exposure. OpenRTB 2.6 sets us up for a more transparent future In 2010, the IAB, along with supply and demand-side partners, formed a consortium known as the Real-Time Bidding Project for companies interested in an open protocol for the automated trading of digital media. The OpenRTB specifications they produced became that protocol, adapting with the evolution of the industry. The latest evolution, OpenRTB 2.6, sets out standards that strive to ensure transparency in real-time bidding, mandating how the supply-side should use certain fields to more transparently provide data when inferring users’ identities. What's new in OpenRTB 2.6? Here are the technical specifications for the industry to be more transparent when inferring users’ identities: Primary ID field: This existing field now can only contain the “buyeruid,” an identifier mutually recognized and agreed upon by both buyer and seller for a given environment. For web environments, the default is a cookie ID, while for app activity, it is a mobile advertising ID (MAID), passed directly from an application downloaded on a device. This approach ensures demand-side partners understand the ID’s source. Enhanced identifier (EID) field: The EID field, designated for alternative IDs, now accommodates all other IDs. The EID field now has additional parameters that provide buyers transparency into how the ID was created and sourced, which you can see in the visual below: Using the above framework, a publisher who wants to send a cross-environment identifier that likely belongs to the same user would declare the ID as “mm=5,” while listing the potential third-party identity resolution partner under the “matcher” field, which the visual below depicts. This additional metadata gives the demand-side the insights they need to evaluate the reliability of each ID. "These updates to OpenRTB add essential clarity about where user and device IDs come from, helping buyers see exactly how an ID was created and who put it into the bidstream. It’s a big step toward greater transparency and trust in the ecosystem. We’re excited to see companies already adopting these updates and can’t wait to see the industry fully embrace them by 2025."Hillary Slattery, Sr. Director, Programmatic, Product Management, IAB Tech Lab Experian will continue supporting transparency As authenticated signals decrease due to cookie deprecation and other consumer privacy measures, we will continue to see a rise in inferred identifiers. Experian’s industry-leading Digital Graph has long supported both authenticated and inferred identifiers, providing the ecosystem with connections that are accurate, scalable, and addressable. Experian will continue to support the industry with its identity resolution products and is supportive of the IAB’s efforts to bring transparency to the industry around the usage of identity signals. Supply and demand-side benefits of adopting the new parameters in OpenRTB 2.6 Partner collaboration: Clarity between what can be in the Primary ID field versus the EID field provides clear standards and transparency between buyers and sellers. Identity resolution: The supply side has an industry-approved way to bring in inferred IDs while the demand side can evaluate these IDs, expanding addressability. Reducing risk: With accurate metadata available in the EID field, demand-side partners can evaluate who is doing the match and make informed decisions on whether they want to act on that ID. Next steps for the supply and demand-sides to consider For supply-side and demand-side partners looking to utilize OpenRTB 2.6 to its full potential, here are some recommended steps: For the supply-side: Follow IAB Specs and provide feedback: Ensure you understand and are following transparent practices. Ask questions on how to correctly implement the specifications. Vet identity partners: Choose partners who deliver the most trusted and accurate identifiers in the market. Be proactive: Have conversations with your partners to discuss how you plan to follow the latest specs, which identity partners you work with, and explain how you plan to provide additional signals to help buyers make better decisions. We are beginning to see SSPs adopt this new protocol, including Sonobi and Yieldmo. “The OpenRTB 2.6 specifications are a critical step forward in ensuring transparency and trust in programmatic advertising. By aligning with these standards, we empower our partners with the tools needed to navigate a cookieless future and drive measurable results.” Michael Connolly, CEO, Sonobi These additions to the OpenRTB protocol further imbue bidding transactions with transparency which will foster greater trust between partners. Moreover, the data now available is not only actionable, but auditable should a problem arise. Buyers can choose, or not, to trust an identifier based on the inserter, the provider and the method used to derive the ID. While debates within the IAB Tech Lab were spirited at times, they ultimately drove a collaborative process that shaped a solution designed to work effectively across the ecosystem.”Mark McEachran, SVP of Product Management, Yieldmo For the demand side: Evaluation: Use the EID metadata to assess all the IDs in the EID field, looking closely at the identity vendors’ reliability. Select partners who meet high standards of data clarity and accuracy. Collaboration: Establish open communication with supply-side partners and tech partners to ensure they follow the best practices in line with OpenRTB 2.6 guidelines and that there’s a shared understanding of the mutually agreed upon identifiers. Provide feedback: As OpenRTB 2.6 adoption grows, consistent feedback from demand-side partners will help the IAB refine these standards. Moving forward with reliable data and data transparency As the AdTech industry moves toward a cookieless reality, OpenRTB 2.6 signifies a substantial step toward a sustainable, transparent programmatic ecosystem. With proactive adoption by supply- and demand-side partners, the future of programmatic advertising will be driven by trust and transparency. Experian, our partners, and our clients know the benefits of our Digital Graph and its support of both authenticated and inferred signals. We believe that if the supply-side abides by the OpenRTB 2.6 specifications and the demand-side uses and analyzes this data, the programmatic exchange will operate more fairly and deliver more reach. Latest posts