
Ongoing signal loss is driving marketers, agencies, and platforms to turn to supply-side advertising. By using first-party data from publishers and platforms, supply-side advertising has the potential to deliver high-quality audience and context for more effective ad targeting.
The supply-side refers to the publishers and platforms that sell advertising inventory. These companies have access to first-party data about their users, which can be used to target ads more effectively. By tapping into supply-side advertising, you can overcome the challenges of signal loss and target ads more effectively.
To shed light on this topic, we hosted a panel discussion at Cannes, featuring industry leaders from Audigent, Captify, Newsweek, Pubmatic, Truthset, and Experian.

In this blog post, we’ll explore how partnerships between supply-side channels and publishers are working to enhance advertising opportunities while balancing the need for transparency and control in programmatic ad buying.
Shift toward supply-side advertising
Traditionally, the demand-side dominated the programmatic media buying chain due to an abundance of supply. However, with the emergence of finite data and its interpretation, collaboration between supply-side technology companies and publishers is required to redefine these economics.
It’s no longer sufficient for the demand-side to blindly negotiate prices based on limited knowledge. Marketers can still define their target audience, but effective communication is key. This presents an opportunity for premium journalistic outlets to guide the industry’s understanding of how data from the supply-side impacts media buying economics in the future.
“Supply-side technology partnerships with publishers are now in a position to shape the economics of programmatic media buying as there is a finite amount of data. It’s crucial for supply-side technology companies to collaborate with publishers to shape these new economics. This presents an opportunity for premium journalistic outlets to provide guidance on how data from the supply-side can affect the future of media buying.”
matthew papa, svp, business & corporate development, captify
Democratizing data from the supply-side
Cookies haven’t brought significant benefits to premium publishers. They mainly serve to retarget users from sites like The Wall Street Journal to advertising sites. This approach primarily serves the purpose of generating revenue.
The elimination of third-party cookies presents an opportunity for premium publishers to shift this dynamic. By using their knowledge of first-party audiences, and using identifiers like Experian’s LUID, publishers can own and understand their audience data, which can then be modeled.
Here’s how publishers can win
Establishing a connection with consumers and emphasizing the value exchange is essential to building trust. Determining what incentives and benefits consumers find meaningful will be crucial in gaining their opt-in.
With consumers
The Apple tracking transparency initiative, specifically the deprecation of IDFA signals, had significant implications for mobile app developers. Overnight, opt-in rates plummeted, causing a drastic decline in iOS ad monetization. To combat this, developers focused on demonstrating the value exchange to consumers—better ad experiences and personalized content.
By articulating the benefits over a couple of years, opt-in rates increased from 10-15% to 30-40%. The key takeaway is the need to effectively communicate the value exchange to consumers.
With partners
Trust plays a crucial role in planning your first-party data strategy. Publishers, advertisers, and data partners highly value their proprietary data. However, there are concerns about how it’s used, mishandled, or leaked in the ecosystem. Building trust between partners is essential. It’s important to work with trustworthy partners who are agnostic, committed to innovative solutions, and globally oriented. These partners can help navigate the complexities of laws and regulations. Choosing the right partners is crucial in a world where first-party data is a key asset.
“Power is shifting toward brands that have strong relationships with customers and possess first-party data. As the ownership of customer data becomes more important, it is crucial to establish a first-party data strategy to better serve customers and adapt to changing market dynamics.”
chip russo, president, truthset
Balance probabilistic and deterministic data
Focus on building trust with consumers and collaborating with reliable companies to share data. However, it’s important to remember that achieving a 100% opt-in rate is unlikely.
The cookie, which has become omnipresent, requires us to shift our strategic thinking. We need to consider both deterministic and probabilistic approaches instead of viewing them as mutually exclusive. The landscape will be fragmented, with some consumers opting in and others not.
“Probabilistic and predictive audience data holds immense potential. With the power of AI, we can expect enhanced performance and efficacy in media campaigns. At Audigent, we firmly believe that this data will outperform deterministic data, making it an integral part of our strategy.”
drew stein, ceo, audigent
Premium content
Trust plays a crucial role in leading to premium content. By placing trust in the best media brands, data, and technology partners, we can expect to see improvements in media, journalism, and advertising. This shift may have a direct impact on the long tail of free natural resources, making it more challenging for them to thrive. However, this change is ultimately beneficial since it promotes higher-quality media experiences overall.
“The homepage surface is making a comeback in the publishing industry, proving its value in establishing a direct connection with readers. While we acknowledge the importance of technology partnerships for addressability and identity, our core competency as a publisher remains outstanding journalism that captures and engages great audiences.”
kevin gentzel, cco, newsweek
Watch our Cannes panel for more on supply-side advertising

We hosted a panel in Cannes that covered supply-side advertising. Check out the full recording below to hear what leaders from Audigent, Captify, Newsweek, Pubmatic, Truthset, and Experian had to say.
Check out more Cannes content:
- Our key takeaways from Cannes Lions 2023
- Insights from a first-time attendee
- Four new marketing strategies for 2023
- Exploring the opportunities in streaming TV advertising
- The future of identity in cookieless advertising
Follow us on LinkedIn or sign up for our email newsletter for more informative content on the latest industry insights and data-driven marketing.
Latest posts

Distribution via LiveRamp enables seamless cross-device customer experiences through more platforms NEW YORK, Nov. 15, 2016 /PRNewswire/ — Tapad, now part of Experian and the leading provider of unified cross-device marketing technology solutions, today announced an expanded partnership with LiveRamp™, an Acxiom® company and leading provider of omnichannel identity resolution, to make the proprietary Tapad Device Graph™ accessible beyond Tapad-hosted direct integrations. Through LiveRamp, Tapad's Device Graph Access now extends to more than 400 ad tech and mar tech platforms. Tapad's Device Graph™ enables marketers to understand, monetize and measure consumer engagement across all digital channels, and Tapad's unified consumer view is recognized as one of the most accurate, scalable cross-device solutions in the market today. Through the expanded partnership with LiveRamp, the Tapad Device Graph can be distributed to the hundreds of platforms used to reach consumers on digital channels and measure campaign performance – even as devices are added daily to Tapad's extensive graph. "Increasingly, marketers want access to cross-device targeting and measurement capabilities within their preferred platforms," said Anneka Gupta, chief product officer of LiveRamp. "Our expanded partnership makes it easy for marketers to access Tapad's graph through the rapidly growing set of integrations available in our partner ecosystem." This is the latest of several initiatives between the two technology platforms designed to make the integration of cross-screen platforms seamless, privacy-safe and easy to use for dynamic and engaging marketing efforts. "During the past year, Tapad has expanded its global presence and rapidly grown its data business – Tapad Coral – doubling the number of companies integrating our device graph into their platforms and growing our annualized run rate by 210%," said Pierre Martensson, GM of Tapad Coral and APAC. "Our expanded partnership with LiveRamp positions us to meet the increased demand for Tapad Device Graph Access and enable new platforms to apply our graph with unprecedented speed." Connect with us today to get started

Every organization has first-party data — and first-party data is every organization’s golden goose. But not all organizations understand how to capitalize on its potential. Part of the challenge: With data growing at such an exponential rate, many marketers struggle to sift through the attributes that can inform their next customer interaction. While the abundance of available data can have tremendous value, it can be rendered useless without the know-how to activate it properly. I recently participated in a panel at the AdExchanger Programmatic I/O Conference, where we discussed the nuances of first-party data, as well as how we’ve seen it evolve over the years. One of the many discussion points we came to a consensus on: All marketers need to develop a true data-driven marketing approach. Take stock of all available data Too many marketers lack sufficient knowledge about all the data housed by their organizations. With the sheer volume of data available, marketers need to determine which data points are most useful to their campaigns. Unfortunately, many organizations have decentralized first-party data sets — causing marketers to ask, “Who owns the data?” By breaking down departmental silos, marketers can connect the “data dots” and gain a true view of their evolving customer base. This single customer view leads to more thoughtful customer interactions. Make first-party data scalable The drawback to first-party data is that it is only representative of a brand’s current customer base. But how can brands expand their reach? One trend that has picked up momentum is more marketers are pooling their resources. By engaging in cooperative programs or leveraging third-party data sources, marketers are able to augment what they know about their customers with what other brands and publishers have on file. Now marketers can interact with their customers with relevant messages across more channels and devices. Track the return on investment Marketers leverage their first-party data to inform customer interactions across all channels, including websites, email, customer care centers, mobile apps, etc. But marketers have been challenged in quantifying the return on investment in their marketing efforts. Sure, marketers can rely on low-hanging fruit, such as clicks and impressions, but they need to think beyond these metrics. If marketers can properly activate their first-party data and create personalized communications, they will be able to measure the sales impact — both offline and online — for all campaigns. The power of first-party data knows no bounds. It truly is the gold standard of assets that most organizations carry. It just needs to be developed. If marketers can refine their approach and develop a true data-driven marketing strategy, they can realize the potential of first-party data. And that realization is the first step in the process to marketing success.

Cross-Screen Pioneer Explores the Power of Connected Cars as a Vehicle for Customer Engagement LAS VEGAS, NV — (October 26, 2016) –Kate O’Loughlin, GM of Media for Tapad, addressed the J.D. Power Automotive conference audience today in Las Vegas, NV. With more than 1,400 participants representing every facet of the automotive marketing profession, the conference has become the industry's leading marketing event. Bringing the unified, cross-screen perspective to the stage, O’Loughlin discussed the vital role of connected cars in the consumer engagement process. She is a founding member of Tapad which launched the world’s first cross-screen marketing technology in 2010. Tapad was acquired by the Telenor Group early in 2016. Key points from O’Loughlin’s J.D. Power 2016 address included: The marketers who deliver relevant and engaging content in a privacy-safe setting will be in the strongest position to navigate the proliferation of connected devices, including the connected points in cars. As automakers innovate the technology in cars, marketers need to be prepared for the size and diversity of data available for understanding consumers. It’s going to be increasingly difficult to wade through the data, so now is the time to build a solid framework for understanding the person behind the data. Marketers who evolve — and take a holistic approach — to their campaign measurements will achieve marked improvements in efficiency and an enhanced understanding of their core audiences. Actionable brand engagement metrics like Viewable Exposure Time (VET) will continue to overtake traditional advertising performance metrics. VET evaluates the optimal amount of time an ad is present on a screen to incite consumer action. In early testing by Tapad, campaigns that employ VET see conversion rate performance improvements from 13 to 60%. The consumer-centric technology solutions of the future need to be as scalable as they are affordable. Learn more about Tapads’ recommended Viewable Exposure Time metric contact us today! Contact us