At A Glance
Addressable advertising helps you reach addressable audiences with relevant messages across digital, TV, and streaming. As signals fragment across browsers, apps, and platforms, AI customer segmentation and privacy-first identity separate guesswork from accuracy. Experian brings trusted data, identity resolution, and activation partnerships together so you can connect with people in ways that feel relevant, respectful, and measurable.In this article…
A decade ago, you could buy media by broad categories and call it a day. But today, your audience lives in a curated world. They watch what they want, skip what they don’t, and expect what they see to match their interests. Research shows that when ads are tailored to households, people pay more attention, stay engaged longer, and are more likely to remember your ads.
That shift in expectations is why addressable advertising continues to grow. It’s a practical response to how media works today, with audiences moving fluidly across platforms, streaming spread across services, and measurement spanning screens and environments. Under these conditions, reaching the right people depends on clarity, not approximation.
Artificial intelligence (AI) strengthens that clarity. When applied responsibly, AI helps connect signals, deepen audience understanding, and deliver relevant messages while protecting consumer data. The result is advertising that feels more human, not less.
What is addressable advertising?
Addressable advertising is the ability to deliver personalized ads to specific individuals or households and measure results using privacy-safe data and identity. It works across digital, connected TV (CTV), linear TV, and over-the-top (OTT) streaming and relies on strong identity resolution and accurate data inputs to ensure your audience definitions remain consistent across channels and over time.
Benefits of addressable advertising
Addressable advertising changes how advertising performs by delivering messages to defined audiences, reducing wasted impressions, and making results simpler to measure.
| Benefit | What it means for you |
| Clarity | Reach the right audience with the personalized messages they want, instead of hoping the right people are watching |
| Efficiency | Avoid wasted impressions by focusing spend where interest already exists |
| Higher ROI | Improve conversion by delivering messages that feel relevant |
| Omnichannel consistency | Carry the same message across digital and TV without starting over |
| Measurable impact | Connect exposure to actions so performance is clear |
| Privacy and compliance | Activate audiences responsibly using privacy-safe data, clear governance, and compliant practices |
These are some of the reasons that addressable advertising has moved from a niche tactic to a core strategy. When audiences are clear, identity is connected, and measurement is built in, advertising becomes relevant, accountable, and easy to improve over time.
Addressable advertising vs. traditional advertising
Unlike traditional advertising, addressable advertising doesn’t depend on broad exposure or assumptions. It’s personalized by design and measurable by default, making it possible to connect ad exposure to outcomes. Another distinction is in how addressable delivers advertising to audiences and how performance is measured.
| Traditional media buys | Addressable advertising buys |
| You pay for broad reach | You pay for relevant reach to defined audiences |
| Ads run by placement or program | Ads are delivered to known households or individuals |
| Personalization is limited | Personalization is built into delivery |
| Measurement indicates trends, not who actually acted | Measurement connects exposure to actions by linking ads to defined audiences across channels |
But before you can activate addressable advertising, you need to understand who you’re actually trying to reach.
What is an addressable audience?
An addressable audience is a group of people you can identify and reach using data-based targeting. In other words, they’re not anonymous “maybe” viewers. They’re a defined audience you can activate across channels.
Here’s what typically builds addressable audiences:
| Factor | What it is | Why it matters |
| First-party data | Data from your own relationships (site activity, app activity, CRM, emails, purchases) | It’s your most direct view of existing customers and prospects |
| Third-party household and individual data | Demographic, behavioral, lifestyle, interest, and intent attributes from trusted providers | It fills gaps so your audience definitions don’t collapse when your own data is limited |
| Identity resolution | A privacy-first way to match people across devices, households, and channels | It improves accuracy so you don’t over-message the same people or miss them entirely |
| Contextual signals | Page-level, content, or viewing context where ads appear | It reinforces relevance in the moment and complements addressable targeting when identity signals are limited |
How Experian helps with addressable audiences
Experian helps you build and activate addressable audiences at scale without losing accuracy or trust. With more than 3,500 syndicated audiences available, you can activate consistently across 200+ destinations — including social platforms like Meta and Pinterest, TV and programmatic environments, and private marketplaces (PMPs) through Audigent.
That means reaching people based on who they are, where they live, and their household makeup, using data governed with care. Our approach is built on accuracy first, which is why Experian data is ranked #1 in accuracy by Truthset for key demographic attributes.
And when standard customer segments aren’t enough, Experian Partner Audiences expand what’s possible. These unique audiences are available through Experian’s data marketplace, within Audigent for PMP activation, and directly on platforms like DIRECTV, Dish, Magnite, OpenAP, and The Trade Desk.
The evolution of addressability and why it matters more than ever
As the media ecosystem shifts, reaching people across browsers, apps, CTV, and streaming platforms has become more complex. Signals are fragmenting everywhere as expectations for relevant, personalized experiences continue to rise, while reliable identifiers become increasingly challenging to access.
In response, addressability is shifting from a channel-specific tactic to an identity-driven approach to reach and measure defined audiences across screens.
That evolution puts new pressure on performance. Marketing budgets require accuracy and accountability, which means targeting must deliver measurable reach and outcomes you can trust.
At the same time, the growth of CTV and streaming is expanding addressable TV opportunities. As CTV inventory grows, so does the need for cross-channel, identity-based activation that works consistently and supports reach, frequency, and measurement in one connected view. That’s why identity has become the foundation for making addressable advertising work today.
When to apply addressable advertising
You don’t need addressable for everything, but it shines when you need your spend to go farther with accurate targeting and resonant messaging.
| Scenario | Why addressable helps |
| Product launches and seasonal pushes | Reach people who are more likely to care without flooding everyone else |
| High-consideration purchases (auto, travel, financial services) | Focus on likely intent and suppress audiences that don’t fit |
| Cross-channel campaigns (digital, TV, mobile) | Keep messaging consistent across screens |
| When using first-party data with AI | Use AI customer segmentation to scale responsibly and improve performance without sacrificing accuracy |
| Regulated categories | Rely on compliant data practices and clearer controls for regulated industries |
Addressable advertising is one way to put relevance and respect into practice — but it shouldn’t be the only time these principles apply. Marketers are expected to be thoughtful about who they reach, how often they show up, and how data is used across every channel. Addressable simply makes it easier to live up to that standard when accuracy, accountability, and scale matter most.
Addressable advertising and third-party data
There’s a common misconception that third-party data is no longer useful, but what’s really changed is the environment around it.
In the early days of digital advertising, third-party data often felt like the Wild West. Today, modern third-party data is more transparent, better governed, and held to far higher standards with:
- Clear data sourcing
- Documented consent practices
- Regular quality audits
- Strict limits on how data can be used
Used responsibly, third-party data plays a critical role in addressable advertising by complementing your first-party data and keeping audience strategies flexible as signals change.
Benefits of third-party data
When paired with identity resolution, high-quality third-party data helps you:
- Fill first-party gaps: Add demographic, behavioral, and interest-based insight when your own data is limited.
- Expand prospecting: Reach new audiences through modeling and lookalike expansion.
- Enrich segmentation: Combine household, behavioral, and interest signals to tailor creative, offers, and messaging to interests for more accurate and personalized activation.
- Support cross-channel addressability: Maintain consistent audience reach across devices and channels even as individual signals change.
Why work with Experian for your data needs?
At Experian, we approach third-party data with the belief that trust comes first. Our data is privacy-compliant, ethically sourced, and governed by strict standards so you can use it confidently.
Accuracy matters just as much. Our identity and data-quality framework verifies that the data behind your audiences holds up in the real world — a key reason Experian is ranked #1 by Truthset for key demographic attributes.
And because addressable advertising only delivers value when audiences move seamlessly from planning to activation, our audiences are interoperable by design. You can activate them across digital, social, and CTV platforms without rebuilding or reformatting your strategy for each channel.
How AI is redefining customer segmentation
Addressable advertising depends on audiences that stay accurate as people move across devices, platforms, and moments. Traditional segmentation built on static rules and snapshots in time can’t keep up with that reality.
AI customer segmentation analyzes massive sets of household and individual data (such as intent, household demographics, purchase behavior, and content consumption) to identify patterns, predict intent, and group people into addressable audiences.
As the AI advertising ecosystem continues to mature, reflected in industry frameworks like the LUMA AI Lumascape, segmentation and identity have become foundational layers rather than standalone tools. Those audiences update as conditions change, so they stay relevant instead of aging out.
Here’s how AI-driven segmentation supports addressable advertising.
| What AI enables | Why it matters |
| Predictive, intent-based audiences | Analyze behavioral and transactional data to group people based on likely next actions |
| Broader audience availability | As more data signals are incorporated responsibly, AI makes it possible to support a wider range of addressable audience options without sacrificing accuracy |
| Deeper insights from data | Discover what people care about, how intent is forming, and which signals are most important with larger, more diverse data sets |
| Real-time audience updates | Keep segments aligned as behaviors change, not weeks later |
| Higher accuracy, less guesswork | Rely on data-driven patterns for decision-making instead of assumptions |
| Ongoing optimization | Refine audiences throughout the campaign lifecycle as performance signals come in |
We’ve used machine learning and analytics for decades to support responsible segmentation — balancing performance with privacy and transparency.
That foundation now supports addressable advertising that adapts in real time while staying grounded in trust.
Addressable TV: Targeting in the streaming era
TV has become an addressable channel powered by data and identity resolution. CTV and OTT streaming are booming, while linear TV continues to decline, reshaping how people watch and how advertising works alongside it. For the first time, CTV spending is expected to outpace traditional TV ad spending in 2028, reaching $46.89 billion and signaling that addressable TV is now central to the media mix.
With CTV and OTT platforms, advertising can now be delivered at the household level. That means two homes watching the same show can see different ads based on who lives there and what they like. This is what makes addressable TV possible.
Benefits of addressable TV
As streaming inventory continues to grow, addressable TV creates new ways to bring relevance and accountability to a channel once defined by broad exposure. Experian links identity data across streaming, linear, and digital platforms to help you manage frequency, attribution, and household-level insights in one connected view.
Addressable TV also raises the bar. To manage reach, frequency, and measurement across streaming and linear environments, addressable TV depends on identity resolution that connects households across screens.
Here’s how addressable TV helps you when identity is in place.
| What addressable TV enables | Why it matters |
| Household-level targeting | Deliver messages that reflect who’s watching, not just what’s on |
| Frequency control across screens | Reduce overexposure and improve viewer experience |
| Cross-channel measurement and attribution | Connect TV exposure to digital actions, site visits, and conversions |
| More efficient use of TV spend | Bring accuracy, accountability, and outcome-based insight to premium inventory and improve reach of streaming-first, harder-to-reach viewer segments |
Ultimately, addressable TV isn’t a replacement for linear TV, but it is an evolution. As streaming becomes the default viewing experience, the ability to engage TV audiences with the same care and clarity as digital is essential.
Use cases for addressable advertising
Addressable advertising works across industries because it adapts to how people make decisions. The examples below are illustrative scenarios that show how addressable audiences, identity resolution, and AI-driven segmentation can come together in practice using Experian solutions.
Retail: Seasonal promotions
A home décor retailer could use identity resolution and AI-driven segmentation to build addressable audiences, such as holiday decorators and recent movers, who are more likely to engage during peak seasonal periods.
Campaigns could then be activated across CTV, display, and social, helping the retailer stay visible across screens while tailoring creative to seasonal intent.
Automotive: In-market car buyers
An auto brand might identify consumers nearing lease expiration using automotive-specific data tied to household and individual attributes.
By suppressing current owners, the brand could avoid wasted impressions and activate addressable audiences across OTT and mobile to reach likely buyers during active consideration.
Financial services: Credit card launch
For a new credit card launch, a national bank could use modeled financial segments to reach credit-qualified prospects.
Addressable digital advertising campaigns could apply frequency controls and personalized messaging, balancing reach with relevance while seamlessly measuring response.
Streaming media: New subscriber growth
A streaming platform looking to grow subscriptions could use an identity graph to exclude current subscribers.
Likely viewers could then be targeted across CTV based on content preferences and viewing behavior, keeping spend focused on net-new growth.
Media and entertainment: Audience expansion for a new release
Ahead of a new release, a film studio could use behavioral and lifestyle data to identify likely moviegoers and fans of similar franchises.
Addressable campaigns across CTV and digital video could help drive awareness and opening weekend attendance.
Travel: High-value traveler acquisition
A travel brand could use travel propensity data and household-level demographics to identify frequent flyers and family vacation planners.
Personalized offers could then be activated across display, social, and programmatic channels to increase bookings while keeping spend focused on higher-value travelers.
How Experian enables more effective addressable campaigns
Addressable advertising is most effective when identity, data, and activation are connected from the start.
Experian brings trusted household and individual data, privacy-first identity resolution, and broad activation partnerships together so you can move from audience insights to activation with minimal friction. Here’s how that comes to life across our core offerings.
Identity resolution with Consumer Sync
Consumer Sync connects devices, emails, digital identifiers, and offline data into a single, privacy-safe identity foundation. This connection helps your audiences stay consistent across streaming, linear TV, mobile, and digital despite changing signals.
Audience insight and segmentation with Consumer View
Consumer View supports clear segmentation, prospecting, and enrichment across industries. It combines demographic, behavioral, and interest-based data to help you build accurate, intent-driven audiences that reflect real people, not assumptions. Data is continuously updated and governed for accuracy.
Omnichannel activation with Audience Engine
Audience Engine enables direct activation of Experian audiences across CTV, digital, social, and programmatic platforms. It supports suppression, frequency management, and cross-channel consistency to keep messaging aligned and exposure controlled.
More efficient media through curation and Curated Deals
Curation combines data, identity, and inventory through Experian Curated Deals. These deal IDs, available off-the-shelf or privately, make it easier to activate high-quality audiences and premium inventory in the platforms you already use without custom setup.
AI-enhanced segmentation and optimization
Our AI-enhanced models analyze large data sets to create and refresh addressable audiences in real time, supporting intent-based targeting and ongoing optimization throughout the campaign lifecycle. These models work seamlessly with demand-side platforms (DSPs), ad platforms, and data clean rooms, so audience insights flow directly into activation and measurement without added complexity.
Seamless integration with your ecosystem
As an advertiser, you want addressable advertising to fit naturally into how you already plan and buy media. That’s why integration matters as much as insight.
Experian integrates with leading DSPs, ad platforms, and data clean rooms, so you can activate addressable audiences in the environments you already use without reworking your strategy or adding complexity. This approach helps you:
- Build and activate addressable audiences: Reach the people you want with accuracy and respect.
- Activate across channels: Keep messaging consistent across digital, TV, and streaming.
- Optimize with data ranked #1 in accuracy by Truthset: Improve performance using the industry’s most reliable data.
When identity, data, AI, and activation come together, addressable advertising does what it’s supposed to do: deliver relevance naturally, measure impact clearly, and give you confidence in every decision along the way.
That’s the foundation for campaigns people want to engage with.
Start creating campaigns audiences want to see
Experian can help you apply addressable advertising in ways that respect consumers, perform across channels, and stand up to real-world measurement.
Connect with our experts today to explore how addressable audiences, AI-driven segmentation, and identity-powered activation can work together in support of your goals.
FAQs about addressable advertising
Addressable data-driven advertising involves delivering personalized ads to specific individuals or households using privacy-safe data and identity.
An addressable audience is a defined group of consumers you can identify and reach based on known household or individual attributes.
Advertising becomes addressable when it’s possible to identify the audience by linking devices and households to people through identity graphs. This allows you to measure ad performance at the audience level and provide more personalized advertising.
Addressable advertising isn’t just for TV; it also works across digital, mobile, streaming, and social channels.
AI improves addressable advertising by analyzing large data sets to predict intent, build more accurate audiences, boost performance over time, and improve your ability to find and build your audiences.
Yes — identity resolution and first-party data are key to cookieless addressability.
Experian supports addressable advertising by providing trusted consumer data, privacy-centric identity resolution, and curated audience segments that activate across CTV, digital, mobile, and streaming platforms.
Latest posts
As marketers face growing signal fragmentation, Experian has launched a data marketplace that brings addressability, interoperability, and identity resolution into one activation-ready platform. Download the overview to see how our data marketplace connects high-quality identity to scalable activation across all screens. Download the overview Why does cross-channel audience consistency matter? Marketers plan campaigns to reach people wherever they watch, browse, and engage. Consistent identity allows those plans to carry across screens without fragmentation. Experian’s data marketplace starts with identity. Our data marketplace is built on our best-in-class identity graph which includes 126 million U.S. households, 250 million individuals, and more than four billion active digital IDs. This foundation supports reliable audience connections across channels and devices. What distinguishes Experian's data marketplace? Experian connects the entire ecosystem — TV operators, programmers, supply-side platforms (SSPs), demand-side platforms (DSPs), and brands — with activation-ready audiences that drive measurable performance. Buyers can access data from retail, CPG, healthcare, B2B, location intelligence, and more. Our audiences are built on verified offline data, which means they're grounded in real-world accuracy, not just digital assumptions. When you activate through our marketplace, you: Reach relevant audiences across screens Maintain accuracy at scale Support addressability as media environments evolve Whether you're running a campaign on connected TV (CTV), mobile, or display, we help you show up in the right place, to the right person, at the right time. Related reading Four CTV advertising misconceptions marketers need to drop "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 Want a quick overview of Experian's data marketplace? Watch our video for a quick overview of how Experian's data marketplace works. How does Experian's data marketplace support buyers, sellers, and platforms? Our data marketplace streamlines how teams plan, distribute, and activate data. Buyers and sellers align workflows while maintaining scale and accountability. Here’s how it delivers: Enhances 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. Simplifies 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. Reintroduces choice within the data marketplace ecosystem With the departure of Oracle’s advertising business, the optionality for buyers and sellers to connect with third-party data has become increasingly limited. With Experian's data marketplace, we’re excited to offer a new solution to the market that ensures data-driven targeting can continue to take place at scale. Reduces activation costs Experian’s data marketplace offers transparent, pass-through pricing with no additional access fees, enabling partners to maximize their earnings while reducing costs. Expands audience diversity and scale Platforms can access a broad range of audiences across top verticals from our partner audiences, which can be combined with 3,500+ Experian Audiences. This offers the flexibility, reach, and scale necessary to effectively execute advertising campaigns. Which data partners participate in Experian's data marketplace? Our data marketplace includes premium data from partners such as Alliant, Attain, Circana, Dun & Bradstreet, and more. Buyers activate these audiences alongside Experian Audiences within one workflow. “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 “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 Q&A with Attain Q&A with Circana Q&A with Webbula How Yieldmo drove in-store traffic for an athletic retailer with Experian's data marketplace Yieldmo, a leading SSP known for its AI-powered creative formats and privacy-forward inventory, partnered with Experian to support an athletic retailer focused on in-store traffic during key sales periods. The team identified high-intent shoppers and activated them across channels. Using our data marketplace, Yieldmo combined Experian Audiences with partner segments from Alliant, Circana, Webbula, and Sports Innovation Lab. This approach allowed the team to: Identify in-store and conquest segments quickly Combine first- and third-party audiences in one place Improve match rates and cross-channel addressability Deliver measurable foot traffic lift “Experian’s data marketplace fills a critical gap, letting us quickly search by brand, build smarter conquest segments, and activate audiences fast. The platform is flexible and the support is hands-on and reliable.”Abby Littlejohn, Director of Sales Planning The campaign delivered faster setup, tailored audiences, and strong in-store performance with less manual effort. Download the full case study Learn more about our solutions for SSPs Get started with Experian's data marketplace Experian’s data marketplace, easily accessible from our Audience Engine platform, brings unparalleled addressability, enabling our clients to reach more relevant consumers and increase revenue. Talk to our team if you’re interested in learning more about our new data marketplace or becoming an active buyer or seller, or download our overview to learn more. FAQs What is Experian’s data marketplace? Experian’s data marketplace is a centralized, activation-ready platform that allows TV operators, programmers, supply partners, and demand platforms to access and activate high-quality, privacy-compliant audiences across CTV, mobile, and display. It supports both first-party onboarding and third-party audience activation. Who is the Experian data marketplace designed for? The Experian data marketplace is built for TV operators, programmers, supply partners, and demand platforms looking to improve audience targeting, match rates, and addressability across fragmented digital environments. What types of audiences are available in the Experian data marketplace? The Experian data marketplace offers a mix of Experian proprietary audiences and third-party data partner segments across verticals like retail, CPG, B2B, healthcare, financial services, and location intelligence. Users can activate over 3,500 Experian Audiences and premium partner segments from providers like Alliant, Attain, Circana, Dun & Bradstreet, Webbula, and more. How does Experian ensure addressability and match rate performance? Experian’s data marketplace is powered by our identity graphs which are rooted in verified offline data, spanning 126 million U.S. households, 250 million individuals, and over four billion active digital identifiers. This foundation ensures that audiences are accurate, actively targetable, and optimized for high match rates across CTV, mobile, and display platforms. Is Experian’s data marketplace privacy-compliant? Yes. All data in the Experian data marketplace is subject to Experian’s rigorous partner review process to ensure compliance with federal, state, and local consumer privacy regulations. Privacy and data stewardship are foundational to our data marketplace’s design. What makes Experian’s data marketplace different from other data marketplaces? Experian’s data marketplace stands out for its focus on audience accuracy, partner integration, privacy compliance, and deep identity expertise. Here’s how we’re different: – Accurate audience planning: Unlike many other marketplaces, Experian ensures that all identifiers tied to an audience are verified as active and targetable — improving match rates and reducing waste. – Seamless partner audience integration: In one platform, you can activate Experian Audiences alongside premium segments from our growing partner network — including Alliant, Attain, Circana, and more. – Privacy and compliance built in: Every partner and audience goes through Experian’s rigorous review process to meet federal, state, and local consumer privacy laws — so you can activate with confidence. – Trusted identity foundation: Experian’s identity graph is grounded in decades of offline data expertise, powering more reliable targeting and activation than marketplaces built solely on digital signals. Where can I learn more or get started? You can download the overview to explore the capabilities, or contact our team to become an active buyer or seller. The Experian data marketplace is available through Experian’s Audience Engine platform. 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. Contact us Latest posts
Note: This Ask the Expert was recorded prior to Experian’s acquisition of Audigent and discusses industry trends and how we’ve worked together in the past. Adopting new strategies based on trust due to evolving privacy regulations and the gradual loss of traditional signals, like third-party cookies, is essential to successfully navigating the future of digital advertising. Advertisers and marketers are at a crossroads, facing the challenge of maintaining personalization and precision while respecting consumer expectations around privacy. To stay competitive, brands must adopt future-ready strategies that focus on trust, privacy-forward technologies, and scalable solutions. In our latest Ask the Expert segment, recorded before Experian acquired Audigent, we explore how first-party data and advanced contextual audience targeting are two critical approaches for successfully navigating these changes. With insights from Greg Williams, President of Audigent, now part of Experian, and Crystal Jacques, VP of Sales at Experian, we discuss how these tools can empower your brand for long-term success. First-party data as a cornerstone strategy First-party data, a powerful tool for building meaningful connections with your audience, has emerged as a fundamental pillar of future-ready strategies. When collected and used effectively, it provides brands with a detailed understanding of consumer preferences and behaviors, enabling real-time campaign adjustments for maximum impact. “Data has become part of every step of the digital advertising supply chain, and should be part of everybody’s buys… the more you can include data in your digital marketing, the better off and the more power you have."Greg Williams, President, Audigent With the continual loss of signal, including third-party cookies, first-party data has proven to be key for brands to stay both competitive and privacy-compliant. Brands using first-party data are better positioned to overcome the challenges of signal loss. This data facilitates improved media targeting and personalized messaging, driving greater engagement and return on investment. Contextually-Indexed Audiences build relevance Experian’s Contextually-Indexed Audiences enable advertisers to target users based on their interests in real-time, without relying on cookies or mobile ad IDs. Machine learning analyzes and maps traffic from over two million websites, linking to Experian’s 2,400 audience segments. With added benefits like audience customization and flexible activation through Audigent’s private marketplaces (PMPs) or demand-side platforms, Experian is setting a new standard for scalable audience targeting. For automotive advertisers, this could mean reaching consumers actively researching luxury electric vehicles on relevant sites. Unlike outdated methods, contextual targeting aligns the message with consumer intent, balancing high precision with consumer privacy. Automotive success story Audigent’s innovative solutions have delivered tangible results. Williams mentions how they helped an automotive brand achieve double the scale and triple their goal of driving test drives. This stands as a testament to the real-world effectiveness of contextual audience strategies and Experian's role in executing them. How to stay ahead of change Here are five strategies to help your brand remain future-ready amid privacy challenges and signal loss: Prioritize first-party data: Build trust and improve targeting accuracy by relying on data that you own directly from your consumers. Test privacy-forward tools: Experiment with solutions like contextual targeting and Google’s Privacy Sandbox to future-proof your advertising. Strengthen identity framework: Create systems to securely manage and use data for cross-channel decision making. Use scalable tools: Partner with trusted providers to deploy solutions that adapt to changing industry standards. Stay proactive and flexible: Continuously evaluate trends and refine approaches to align with emerging consumer and regulatory expectations. A deeper conversation For additional insights, watch our full Q&A. Greg Williams and Crystal Jacques discuss the future of audience targeting, how first-party data reshapes marketing strategies, and how Experian and Audigent have collaborated in the past. Watch now Contact us About our experts Greg Williams, President, Audigent Greg Williams is Audigent's President, responsible for managing Audigent’s vast portfolio of ecosystem partners, enterprise sales, marketing, and client success. An innovator in programmatic ad buying, Williams co-founded MediaMath and was instrumental in building and scaling that company in the US and internationally. He led MediaMath's international expansion in 2011 and grew that business from zero to a top revenue driver for the company in three years. During his 14 years at the company, Williams held global roles and built teams across every function of the organization — most notably leading business and market development, product development, and partnerships. Prior to co-founding MediaMath, Williams held senior positions at [X+1] (which was later acquired by RocketFuel), Nielsen, and Accenture. Crystal Jacques, Head of Enterprise Sales, Experian Head of Enterprise Partnerships, leading Experian's go-to-market team across all verticals. With over ten years of experience in the Identity space, Crystal brings a wealth of expertise to her role. She joined Experian in 2020 through the Tapad acquisition, following her successful stint as the head of Global Channel Partnerships for Adbrain, which The Trade Desk later acquired. Latest posts