
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

In a youth-obsessed world where fresh faces sell products, despite all efforts it’s a cruel reality that fashion models will eventually have to look for a new job. While they may try to self preserve with plastic surgery, Botox and laser treatments, let’s face it – they can’t be models forever. The advertising industry knows that a fresh face can’t be overlooked to sell products, so why should it be different for traditional direct marketers? Customers are the lifeblood of any business, yet businesses lose anywhere from 10-30% of them per year. Today’s “always on” shopper makes decisions in every channel – direct, online and in-store. In looking for better ways to sell more products to current and new customers, marketers seek out ways to expand their prospect universe to improve customer acquisition levels. Why? Customers are the lifeblood of any business, yet businesses lose anywhere from 10-30% of them per year. This makes new customer acquisition extremely important to both protect and grow business year over year. The acquisition challenge is that traditional prospect universe expansion is becoming increasingly difficult. Many marketers have exhausted list and co-op rental names, and optimization strategies. They’ve been using the same predictive prospecting models against compiled prospect data or co-ops for a long time. But these tools, which are based on traditional demographics, are increasingly leading to a decline in good prospect identification and acquisition. We know that in prospecting, there is no customer behavioral data to drive higher performing analytics – no plastic surgery or proverbial fountain of youth. In today’s multi-channel shopping world, the fresh face of online behavior can’t be overlooked. While direct marketers in self-preservation mode have leveraged traditional acquisition models for years, the reality is that if they do not consider fresh new data and modeling solutions, they will be looking for their next, new job. So, what can marketers do to overcome prospect universe expansion hurdles with online insight to increase acquisition and ROI? Meet direct marketing’s fresh new face: online behavioral data and modeling. Online behavioral data addresses a key challenge of traditional direct marketers: profitable prospect universe expansion. By incorporating online behavioral data (website traffic and behavior, search, demographics, lifestyle data) into offline marketing strategies, marketers can: Identify previously untapped prospect universes Suppress likely non-responders Enhance offline prospecting Where else do consumers so actively demonstrate their purchase interest and behavior? Where else do we go when we want to learn about something? Anything? We go online. But most direct marketers have not enhanced their offline marketing efforts with online data, missing the opportunity to incorporate online behavior into targeting efforts. With this fresh new data source, direct marketers are able to: Better understand customer behavior across channels Refresh their current models Develop better models, built from true, multi-channel data Ultimately, direct marketers will be able to identify new pockets of high-value prospects that traditional response models miss, resulting in an increase in revenues and profit. Fashion models and trends change, and sometimes that’s for the best, otherwise we might still be wearing parachute pants and slap bracelets. Luckily, you now know what the new face of marketing is and can begin integrating online behavior into your existing customer data today to leverage new marketing opportunities. Discover the new fresh face of direct marketing; learn more about online behavioral profiling and modeling.

Public attitudes are more open and accepting of LGBT Americans today, and marketers are increasingly showing their support of their LGBT customers. Experian Simmons includes a measure of sexual orientation among non-Hispanic respondents of our National Consumer Study, the only known large probability sample syndicated study to include such a measure. In our 2012 LGBT Demographic Report, we looked at marriage and cohabitation habits, as well as income levels and discretionary spend of LGBT and heterosexual adults alike. This data helps marketers better understand and connect to the growing and already influential LGBT demographic and to benchmark important factors against the heterosexual population. A look into individual earnings and household incomes shows that lesbian women earn more than heterosexual women regardless of relationship status. Specifically, the typical adult lesbian woman personally earns $43,100 per year compared with $37,600 claimed by the average heterosexual woman. Furthermore, the typical household income of a married or partnered lesbian woman is $7,200 higher than that of a married or partnered heterosexual woman. Mean individual earnings and household income of women, by sexual orientation When it comes to individual income, gay and straight men may earn roughly the same amount, but married or partnered gay men personally take home nearly $8,000 more, on average, than their straight counterparts. Additionally, the average household income of a married or partnered gay man is $116,000 versus $94,500 for a straight married or partnered man. Mean individual earnings and household income of men, by sexual orientation Income levels are important to consider when targeting consumers, but more important is determining the amount of money they have left over after the bills are paid for non-essentials. Despite having higher incomes, some may be surprised to learn that lesbian women have only the same amount as heterosexual women to spend on discretionary items. Likewise, gay men have less than heterosexual men for non-essentials overall, even though their incomes overall are quite equal. This is mostly likely due to the fact that both lesbian and gay adults tend to reside in larger cities where the cost of living can be considerably higher. Interestingly though, when household size is brought into the equation, we see that gay males actually have more to spend on non-essentials per capita than straight men. Gay men, for instance, live in households that spend $6,256 per capita annually on discretionary spending, nearly $1,000 more than what the households of heterosexual men spend per person. For more demographic and attitudinal information on the trends among the LGBT population, download the 2012 Lesbian, Gay, Bisexual, Transgendered Demographic Report.

My Experian Marketing Services’ colleagues and resident data experts Bill Tancer and Marcus Tewskbury answered the above question for marketers during our recent 2012 Holiday Planning Webinar. The webinar recapped key 2011 holiday marketing results, plus featured trends, benchmarks and recommendations for a successful and profitable 2012 holiday shopping season. Here are a few cool facts: For the first time, last year’s Cyber Monday beat Thanksgiving Day as the busiest online shopping day of the year Facebook and Pinterest were the top traffic sources to the Experian Marketing Services Retail 500 Pinterest visitors most often went to etsy.com and amazon.com from the pinterest.com site Dynamic content in emails can drive up to a 70% lift in open rates Tying web, email and in-store promotions together enhances the shopping experience and improves sales The bottom line is that marketers need to understand where there customers are, when they are there, and what they are doing. Armed with that knowledge, you can deliver personalized and targeted holiday messages that are sure to make this shopping season merry and bright (and profitable!). View the webinar to learn more.