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Third-party cookies have been the foundation of targeted advertising for a long time. Around 75% of marketers worldwide rely on third-party cookies, with approximately 42.2% of websites using them to gather user data. These tiny bits of code silently track our online activities, collecting search history and product preferences to help advertisers tailor their campaigns to our needs.
However, as fears over online privacy have grown, the third-party cookie era is ending. Most American consumers are worried about data privacy when engaging with brands online. Privacy concerns are widespread across all age groups, with 82.7% of 18- to 24-year-olds and 87.8% of 55- to 65-year-olds expressing apprehension about how their data is handled, according to eMarketer.
While some other search engines have already eliminated third-party cookies, Google Chrome — which holds 65% of the global browser market — is just beginning to phase them out as new alternatives are tested. Google’s third-party cookie deprecation is expected to impact marketers in a big way.
Let’s talk about what that impact will look like and how marketers can reconcile consumer demands for browsing privacy with their preference for personalized ad experiences.
What is cookie deprecation?
Cookie deprecation is a process where web browsers, like Google Chrome, phase out the use of a specific cookie type. In the context of this article, we’re referring to third-party cookies, small pieces of data stored on a device by websites a person visits.
Advertisers and other companies use third-party cookies to track a person’s actions on the web. They help those companies learn about an individual’s interests and show them targeted ads. But over time, internet users have become more aware of cookies and how much companies know about them, so browsers are phasing out third-party cookies to respect user privacy.
The timeline and reasons behind the shift
In January 2020, Google announced it would no longer allow third-party marketing cookies by 2022. Realizing it needed to find an alternative first, it pushed the deadline back several times over the years, eventually confirming that third-party cookies would be deprecated by the end of 2024 — a big deal for the advertising industry. So, what’s the motivation behind this change?
Many people are becoming increasingly worried about online privacy and the intrusiveness of third-party cookies. In recent years, lawmakers have pressured tech companies to make changes in response to their constituents’ concerns about online privacy rights. By getting rid of third-party cookies, browsers like Chrome are trying to give users more control over their data and respect privacy demands to create a more privacy-friendly browsing experience.
This shift is part of a broader trend in the digital world toward greater privacy protections, with browsers like Firefox and Safari having already phased out third-party cookies. We’ve also seen other significant moves in this direction, including the following. These regulatory efforts reflect a growing awareness of how important it is to protect data privacy and consumer rights in a world gone digital.
- Apple’s App Tracking Transparency (ATT) framework was introduced in iOS 14.5, requiring users to get permission before tracking their data across other apps or websites.
- The Global Privacy Control (GPC) strives to improve users’ control over their internet privacy by letting them signal their preferences for data sharing.
- Europe’s General Data Protection Regulation (GDPR) and California’s Consumer Privacy Act (CCPA) have strict guidelines for how companies handle personal data to prioritize transparency and user consent.
Google’s most popular browser, Chrome, recently made its first big move toward third-party cookie deprecation. On January 4, 2024, Google announced the rollout of a new “Tracking Protection” feature, limiting cross-site tracking by default. They’re doing this gradually, activating the feature for 1% of random Chrome users worldwide, about 30 million people.
Google Chrome’s cookie phase-out impact
Chrome’s third-party cookie deprecation is expected to have the farthest-reaching consequences for marketers like you, as it has almost two-thirds of the browser market worldwide. It’s important to note that this phase-out specifically targets third-party cookies, not first-party cookies, which are generated and stored by the website a user visits directly and will be unaffected by this change.
Here are a few of the impacts to prepare for.
Reduced tracking capabilities
Once third-party cookies are eliminated, you may face challenges in understanding consumer behavior across different websites. Without this tracking capability, understanding your audiences and effectively tailoring advertising campaigns might become more difficult.
Required shift in strategy
It will be key for you to adapt your advertising strategies to rely less on third-party data and more on alternative targeting methods. This shift may involve greater emphasis on contextual advertising, which targets people based on the content of the websites they visit instead of browsing history, and first-party data gathered directly from site users to personalize advertising campaigns.
Additionally, in order to move beyond reliance on cookies and third-party identifiers, activation platforms like demand-side platforms (DSPs) must evolve to identify addressable IDs within bid streams. This adaptability is essential as digital advertising shifts toward privacy and cookieless environments. By being able to recognize addressable IDs in bid streams, DSPs can help facilitate more accurate, personalized targeting and help advertisers reach their audiences across channels and devices without privacy concerns. As a marketer, you should understand the capabilities of your chosen platforms and inquire about their support for evolving targeting methods and data sources.
New compliance regulations
By limiting the ability to track users across the web, Google aims to enhance user privacy and control over their data. You’ll need to embrace privacy-centric approaches to advertising to comply with evolving privacy regulations and build trust with consumers.
Challenges posed by Google’s cookie deprecation in 2024
Marketers are responding to the announcement of third-party cookie deprecation with an eye toward innovation as they proactively seek new solutions. As of early 2024, 56% of marketers in the United States were testing cookieless alternatives. Knowing their customer acquisition will be less efficient without these cookies, they’re looking for ways to maximize the value of their existing customers, increase retention, and make better use of first-party data. Others have been slow to react due to a lack of awareness or uncertainty about how to handle the changes.
Here are some additional challenges advertisers can expect to face as third-party cookies begin to be phased out.
Impact on targeting and personalization
The decline of third-party cookies is expected to have a major impact on targeting and personalization strategies. As advertisers will no longer have access to individual browsing histories, some may struggle to reach specific audiences and deliver personalized content. As a result, they have begun to explore using first-party data and contextual targeting to preserve relevance and consumer engagement.
Attribution and measurement challenges
The future removal of third-party cookies may also make it harder to measure the effectiveness of advertising and accurately attribute conversions. Marketers are currently searching for reliable alternatives to track users across channels and touchpoints. Google’s Attribution Reporting API and private aggregation methods are being explored as potential solutions to these attribution and measurement challenges.
Data privacy and compliance challenges
Future third-party cookie deprecation makes data privacy and compliance a top priority. With the introduction of stricter regulations like GDPR and CCPA, you need to ensure your data collection and usage practices comply with privacy laws. To maintain the trust of consumers and abide by regulatory requirements, it has become essential to shift toward first-party data collection and more transparent consent mechanisms.
Lack of resources to invest in alternative solutions
One of the main challenges advertisers will face with future cookie deprecation is a lack of resources to invest in alternative solutions. Many businesses don’t have the financial resources or technical expertise to explore and implement new targeting and measurement methods.
Additionally, some companies have been reluctant to adopt new solutions because they want to thoroughly test and evaluate their efficacy. The fear of investing resources in unproven technologies or strategies has led to a cautious approach among marketers and advertisers. However, this reluctance to adapt could hinder their ability to remain competitive.
Many companies may also face logistical challenges due to the complexity of transitioning from reliance on third-party cookies to alternative data sources and targeting methods. Integrating new technologies, adjusting workflows, and retraining staff requires time and effort, adding to the complexity of the transition.
Adapting to a cookieless world
Even though third-party cookies are going away, you still have other types of data in your arsenal to help you continue reaching your audience.
Use first-party data
First-party data, collected from customers or website visitors directly, offers valuable insights into consumer behavior and preferences. By investing in proven data collection methods and analytics tools, you can understand your audience more accurately and tailor your messaging and targeting accordingly.
Explore Experian’s signal-agnostic products
Experian is leading the charge in preparing marketers for a cookieless world with our audiences and foundation built from over 200 offline data sources. Our signal-agnostic Graph supports universal IDs and enables brands to expand their existing IDs to all other digital and addressable IDs within our Graph.
Advertisers can enhance their strategies by working with Experian to enrich first-party data with our demographic and behavioral attributes to gain a better understanding of audiences without cookies. Additionally, our data collaboration solutions enable marketers to collaborate with partner data, deriving greater value and enabling deeper insights for effective marketing campaigns. Experian is future-proofing identity strategies to ensure continued marketing performance and success.
Discover alternative targeting technologies
As third-party cookies become obsolete, marketers are starting to investigate alternative targeting technologies for optimizing campaigns. These may include contextual targeting, which focuses on the content and context of a user’s web browsing activity, as well as emerging solutions like cohort-based targeting, which groups users based on shared interests and behaviors. Think of third-party cookie deprecation as the opportunity to innovate and rethink strategies that have relied too heavily on one type of technology.
Best practices for marketers in the post-cookie era
Embracing best practices for a privacy-centric advertising environment can help you maintain your effectiveness and thrive in a cookieless world. Let’s talk strategies to help you succeed in the post-cookie era.
Focus on customer consent and transparency
Having consumers opt-in to sharing their data is an excellent way to build your data pool ethically. One way to do this is by encouraging users to create accounts or log in to access exclusive content or features while providing valuable information in exchange for their data. Another way is by conducting surveys or quizzes to gather insights directly from users about their preferences, interests, and behaviors. You could also use interactive content like polls and contests to engage users and collect data. These approaches can enrich your data pool while demonstrating your commitment to respecting user privacy and preferences.
Prioritize obtaining explicit consent from users before using or gathering their data for your advertising. Implement transparent data practices by clearly communicating to consumers how you’ll use their data and providing easily accessible options to manage their privacy preferences. By building trust through transparency and respecting user choices, you can forge stronger relationships with your audience.
Enhance the customer experience with quality data
In the future absence of third-party cookies, first-party data will be paramount in helping you understand and engage with your audience effectively. Invest in strategies that will help you collect high-quality data directly from customers, such as through interactive content, preference centers, and loyalty programs. By obtaining and using accurate, relevant data, you can provide personalized experiences that resonate with audiences and drive meaningful engagement.
Collaborate with evolving technology platforms
As Google’s cookie deprecation reshapes advertising, it will be important to collaborate closely with technology providers and key industry players who are adapting to these changes. Make sure your chosen platforms are keeping up with the industry and offering solutions that align with the shift to cookieless environments. Partnering with platforms that are proactively addressing these challenges will make it easier to navigate the changing marketing environment and drive better results for consumers and campaigns.
Prepare for the future of advertising with Experian
Despite the fact that third-party cookies are going away, there’s no need to panic. This change offers new opportunities for innovation and strategic refocus. With the emergence of alternative targeting methods, such as first-party data, you can still reach your target audiences effectively while respecting user privacy. By staying proactive and utilizing your available resources, you can navigate the cookieless future with confidence and continue to drive meaningful connections with your audiences.
With a robust suite of data-driven solutions and a breadth of addressable IDs, Experian can help you continue to reach and engage with your target audiences. Our Consumer Sync identity solution is signal-agnostic and empowers consistent consumer interactions, while our Consumer View data solution offers privacy-compliant data to help you connect meaningfully with consumers and reach audiences effectively. Connect with Experian today to discover how we can help you prepare for and thrive in a cookieless future.
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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, programmatic advertising platforms, and directly within Audigent for activation within private marketplaces (PMPs). Reach consumers based on who they are, where they live, and their household makeup. Experian ranked #1 in accuracy by Truthset for key demographic attributes. Access to unique audiences through Experian’s Partner Audiences available on Experian’s data marketplace, within Audigent for activation in PMPs and directly on platforms like DirectTV, Dish, Magnite, OpenAP, and The Trade Desk. 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! Need a custom audience? Reach out to our audience team and we can help you build and activate an Experian audience on the platform of your choice. Additionally, work with Experian’s network of data providers to build audiences and send to an Audigent PMP for activation. Connect with our audience team Connect with us 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
As marketers face growing fragmentation and signal loss, Experian has launched a powerful new solution: 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 The data you need to reach real people across every channel Today’s marketers are trying to connect with real people, not just cookies, devices, or IDs, across more channels than ever. But with so many signals disappearing, that’s getting harder to do. That’s where Experian’s data marketplace comes in. Our data marketplace is built on our best-in-class identity graph, which includes 126 million U.S. households, 250 million individuals, and 4 billion+ active digital IDs. 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. Because we start with verified offline data, our audiences are grounded in real-world accuracy, not just digital assumptions. That means when you activate through our marketplace, you can: Reach more of the right people Stay accurate at scale Keep addressability high even as the ecosystem shifts Whether you're running a campaign on 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 Tap into premium data from top partners like: Alliant, Attain, Circana, Dun & Bradstreet, and more. "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. Read the article here How it works: Benefits for buyers, sellers, and platforms Our data marketplace is built to support high-performance media strategies, helping partners activate and scale faster. 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 2,400+ Experian Audiences. This offers the flexibility, reach, and scale necessary to effectively execute advertising campaigns. “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 Want to learn more about our data partners? Q&A with Attain Q&A with Circana Q&A with Webbula “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 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’s campaign focused on driving in-store traffic — particularly during key sales windows. By using Experian’s data marketplace, Yieldmo built a self-serve targeting strategy combining Experian Audiences and high-performing partner segments (e.g., Alliant, Circana, Webbula, and Sports Innovation Lab). They were able to: Quickly identify in-store and conquest segments Easily combine first- and third-party audiences 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 result? Faster setup, more tailored audiences, and stronger in-store outcomes all while reducing manual work. Download the full case study Learn more about our solutions for SSPs Ready to activate? Better connections start 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 2,400+ 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 4 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