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.
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Q&A with John Fetto, Senior Analyst, Marketing & Research Earlier this year, Experian Marketing Services released our Cross-Device Video Analysis. The analysis has generated such strong and sustained interest from marketers and the media, we wanted to explore the subject further. The following is an exchange with the report’s lead author John Fetto who answers some common questions that we’ve received since the analysis was published. Q: In the Cross-Device Video Analysis, you report that consumers are “cutting the cord” on pay cable and satellite television services. Can you elaborate on this trend? What’s driving it? According to our research at Experian Marketing Services, U.S. consumers are increasingly likely to have high speed Internet at home but no cable or satellite TV subscription. There are two primary consumer trends driving this: 1) Households that never subscribed to a pay TV service are now upgrading to broadband Internet; 2) Households that previously subscribed to both pay TV service and broadband Internet that have since cancelled the cable or satellite TV subscription. While the vast majority of U.S. households pay for either cable or satellite TV, an estimated 15.1 million (or 12.9 percent of households) do not. That’s up from 13.5 million households (11.9 percent) who didn’t pay for TV in 2009. At the same time, the share of broadband households is also rising. Today, 72.7 million homes (61.4 percent) have broadband Internet, up from 65.0 million homes (56.9 percent) in 2009. As Americans’ Internet connection at home is increasingly fast enough to deliver high quality video content through sites like YouTube, Netflix, Hulu and the like, as well as the ability to consume that online video content across an array of devices ranging from Internet-connected televisions to smartphones and tablets to computers, they are increasingly questioning whether they need to continue paying for TV. And more and more consumers are deciding to cut the cord. Q: With more consumers cutting the cord, how are they consuming video content? While the most commonly used device to consume online video is the smartphone — used by 24 percent of adults during a typical week to watch online video, according to our research — “cord cutters” are primarily using Internet-connected TV to consume online video. In fact, an adult who watches online video on their TV is 3.2 times more likely than the average adult to be a cord-cutter. This means that the Internet-connected TV market is critical in predicting the future of the cord-cutting consumer. As existing devices like Apple TV, Chromecast and Roku are upgraded and new devices like Amazon Fire TV are introduced to the market, consumers will have more and more options to consume online video without sacrificing quality or screen size. As a result, more consumers will be reconsidering whether they need to continue paying for TV. Q: What percent of consumers get their television programming from various sources including cable, satellite, online streaming and free over the air TV? Combined, 87.1 percent of U.S. households subscribe to either cable or satellite TV. While Experian Marketing Services doesn’t specifically measure the percent of Americans who watch TV through an over the air feed (OTA) we know that among those who do not subscribe to cable or satellite, the vast majority (77 percent) still watch TV. And while it’s possible that some are viewing TV from a cable or satellite feed away from home, the most likely source of their TV content would be from OTA sources. That means that at least 10 percent of American adults are watching some TV through an OTA feed. In addition, 48 percent of all adults watch online video each week through a variety of devices. Those who don’t pay for TV are 12 percent more likely than those who have cable or satellite TV to watch online video (54 percent vs 48 percent). Q: The cord-cutting trend has many implications for the cable and satellite companies, but what do consumer-facing marketers and advertisers need to know about this trend? The growth in online video viewing creates many opportunities for marketers. Online audiences can be more easily targeted and served up advertising that is more relevant, responsive and measureable. Marketers can also be more confident that their online ad was actually seen, given that viewers are typically unable to skip ads. And while CPMs for online video ads may generally be lower than those of TV, marketers can use that savings to negotiate costs based on clicks or transactions rather than impressions, giving them a better picture into audience interest and insights to inform their budget allocation. Millennials are the most device “agnostic,” with more than one-third saying they don’t mind watching video on a portable device even if it means a smaller screen. That’s more than double the rate of those ages 35 and older. This decentralized viewing can create headaches for marketers who need to start a relationship with Millennials during this stage of their lives when they’re most open to trying out new brands and have yet to settle down. On the plus side, marketers who do manage to reach this audience will find them much more open to advertising than average. In fact, Millennials are more than four times more likely to say that video ads that they view on their cell phone are useful. So while the challenge is big, so is the potential reward. Download the full analysis to learn more about: Cross-device video behaviors to optimize media mix approach The impact of the growing trend in cord-cutters The rising influence of Internet-connected TV How to get more impact from video content
School may be out for the summer, but this is the perfect time for marketers to begin back-to-school planning. Follow these five simple tips and be on your way to back-to-school success. Searchers are actively seeking out ideas around clothes, hairstyles and dorm room décor as they prepare for the school year to start. Leverage sites like Pinterest to promote back to school merchandise and content. Don’t forget to include DIY and customization options as these appeal to today’s students. Don’t underestimate the influence of moms and college students. These consumers are more likely to actively search for the best deals online so test using deal-seeking terms like “free” and “sales” in promotional campaigns. In 2013, Marketers experienced a 35 percent lift in unique clicks when they used the word ‘college’ in the subject line. This year, try targeting specific ages for back-to-school by including terms like “college” and kids” in the subject line. Timing of back-to-school campaigns matters. While August is the key month for back-to-school campaigns, there may be more opportunity to mail additional campaigns for school supplies in July, and clothing and accessories in early September. Don’t forget to personalize! Last year, we saw a 44 percent increase in unique open rates for emails that contained personalization in the subject line. These tactics should be included in a strong back-to-school mailing program. For more information on back-to-school planning, download the 5 Lessons for Back-to-school Marketers in 2014 report.
Experian Marketing Services conducted an analysis into the attitudes, language preferences, spending habits and media behaviors of Hispanic Consumers, some of which were featured in the 2014 Hispanic Market Overview presented by López Negrete Communications. This post highlights findings from that analysis, which focus on Hispanic consumers’ adoption and use of smartphones. Hispanic consumers, who today account for 15 percent of the total U.S. adult population and 22 percent of Millennials, represent an ideal audience for mobile engagement and mobile advertising. While cell phone ownership rates among Hispanic and non-Hispanic adults are equal, Hispanics are more likely to own a smartphone and use it as their primary device to connect to the Internet. According to the latest estimates from Experian Marketing Services, 63 percent of Hispanic adults own a smartphone versus 60 percent of non-Hispanics. That’s up from 52 percent and 51 percent, respectively, since 2012. Among smartphone owners, Hispanics are 17 percent more likely than non-Hispanics to say that they access the Internet more through their phone than through a computer. In fact, 45 percent of Hispanic smartphone owners are mobile-dominant when it comes to going online compared with 38 percent of non-Hispanics. Marketers courting the influential Hispanic consumer must consider this fact and take a mobile-first approach to ensure that online marketing efforts, including everything from email to websites to e-commerce, are designed to engage the customer as effectively on a mobile device as on a computer. Even traditional marketing tactics such as television ads should reflect the growing likelihood that Hispanics have a smartphone either nearby or physically in their hand and are ready to engage. In fact, 37 percent of all Hispanic adults say that they often use their cell phone while watching television compared with 29 percent of non-Hispanics. Among smartphone owners, the share of Hispanics who use their phone while watching television shoots up to 50 percent versus 42 percent of non-Hispanics. Millennial smartphone owners are among the most likely to be splitting their attention between the big and small screen with 61 percent of Hispanic Millennials and 58 percent of non-Hispanic Millennials doing so. Knowing what specific mobile activities Hispanics are engaging in is critical for marketers in identifying the best tactics for reaching them via mobile. The chart below shows that Hispanics engage in most smartphone activities at above average rates, but they are much more likely than non-Hispanics to IM/chat on their phone. As a result they are slightly less likely than non-Hispanics to email from their phone, though the vast majority of Hispanic smartphone owners still use mobile email. Other activities that marketers will find Hispanics engaging in at above average rates include watching videos, using mobile GPS and listening to music. Learn more about how Experian Marketing Services can help your organization more effectively target, reach and engage today’s Hispanic consumer.