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
Tapad expands linear TV analytics solution, enabling optimal reach and frequency across TV and digital platforms NEW YORK, Jan. 24, 2017 /PRNewswire/ — Tapad, now a part of Experian, has partnered with WideOrbit, the leading provider of advertising management software for media companies, to develop the industry's first programmatic TV-buying platform powered by a device graph. Tapad is the leading provider of unified, cross-screen marketing technology solutions and was first to market with a device graph, the Tapad Device Graph™. WideOrbit's robust supply platform and industry-leading footprint offers access to premium TV inventory on top networks, reaching more than 99 million households across local affiliates. The partnership pairs Tapad's demand-side technology with WideOrbit's supply-side inventory. As a result, marketers can leverage cross-device audiences in their TV buys for the first time. Additionally, integrating the Tapad Device Graph™ with digital feedback loops and audiences both accelerates optimization and enables precise audience discovery for TV marketers. "The integration of WideOrbit's quality TV supply takes orchestrated cross-screen media buys to the next level," said Marshall Wong, Tapad's SVP of TV market development. "Marketers can now optimize TV campaigns within days instead of weeks. This also untethers them from buying against generic demographics like age and gender. By allowing brands to employ their own CRM or third-party data, we can move them much closer to audiences who will take action." "Integrating Tapad's device graph with WideOrbit's programmatic marketplace delivers enormous value to marketers looking to add TV to cross-device campaigns," said Ian Ferreira, EVP of programmatic at WideOrbit. "Television still delivers the most efficient reach of any medium, and Tapad's platform now allows marketers to purchase premium broadcast inventory that extends the power of cross-screen campaigns to TV with a single, unified solution." "Our clients build lasting relationships with consumers through thoughtful and pioneering marketing," said Jeff Giacchetti, VP of digital at Mediavest Spark. "The strategic partnership of demand-side technology and supply-side inventory makes it easier for brands to find efficient, incremental reach and are critical in this endeavor." For more information about Tapad's cross-platform advertising solutions, please visit https://www.experian.com/marketing/consumer-sync Contact us today!
Personal skill development for marketers to foster a broader view of the industry is critical to marketing programs success.
Global Engineering Team Staffing Up New Oslo Hub; Nordic Operational Team Also Slated for Q1'17 NEW YORK, Jan. 11, 2017 /PRNewswire/ — Tapad, now a part of Experian, the leader in cross-device marketing technology, is opening an office in downtown Oslo, Norway, effective January 16, 2017. This development reflects Tapad's continued growth following its acquisition by the Telenor Group in early 2016. Tapad Oslo will be comprised of a globally-focused engineering team as well as an upcoming operational headquarters for the region. Jeff Olchovy, a senior Tapad developer and one of its earliest employees, will forge the company's Nordic engineering presence by supporting the build-out of the team. The initial hiring plan of more than 20 open positions includes roles such as Head of Engineering, Senior Software Engineers and Solution Engineers. Plans for Tapad's Nordic Region business line, including its leadership, will be announced within the first quarter of 2017. "Given the caliber of technical talent and our extensive network in the region, Oslowas the logical choice at this stage of our growth," says Dag Liodden, Tapad CTO and co-founder. "This enables us to continue building out our innovative team on a global scale in a region that is close to our hearts and minds." In collaboration with its New York-based developers, Tapad's Oslo-based engineers will continue to advance the company's renowned product portfolio, such as the Tapad Device Graph™. An early adopter of Scala and big data processing technologies, Tapad has long been an influencer in U.S. tech. "As the head of our platform group, which daily processes several petabytes of data and is the foundation for all of our real-time systems, Jeff is a highly respected engineer," said Pål Høye, Tapad's senior vice president of engineering. "Given his experience and skillset, he is ideally suited to find and lead an innovative team focused on building the industry-leading products we are known for." Tapad has 15 offices in six countries with more than 200 employees worldwide. For more information on Tapad and to explore open positions, visit www.experian.com/careers/ In 2016, Tapad launched an entrepreneurial mentorship initiative, the Propeller Program, which selected five Norwegian startups to share Tapad's New York Cityworkspace, receive C-level guidance and help establish a U.S. presence. To learn more about the Propeller Program, visit www.tapad.com/propeller-program. About TapadTapad Inc. is a marketing technology firm renowned for its breakthrough, unified, cross-device solutions. With 91.2% data accuracy confirmed by Nielsen, the company offers the largest in-market opportunity for marketers and technologies to address the ever-evolving reality of media consumption on smartphones, tablets, home computers and smart TVs. Deployed by agency trading desks, publishers and numerous Fortune 500 brands, Tapad provides an accurate, unified approach to connecting with consumers across screens. In 2015, Tapad began aggressively licensing its identity management solution, the Tapad Device Graph™, and swiftly became the established gold-standard throughout the ad tech ecosystem. Tapad is based in New York and has offices in Atlanta, Boston, Chicago, Dallas, Detroit,Frankfurt, London, Los Angeles, Miami, Minneapolis, San Francisco and Toronto. Tapad's numerous awards include: EY Entrepreneur of The Year (East Coast) 2014, among Forbes' Most Promising Companies two year's running, Deloitte's Technology Fast 500, Crain's Fast 50, Entrepreneur 360, Digiday Signal Award, iMedia ASPY Award and a MarCom Gold Award.