At A Glance
Sell-side decisioning is changing how publishers and advertisers collaborate, improving efficiency and fostering more meaningful connections. Experian’s syndicated audiences and data solutions help both sides reach the right audiences with greater transparency and privacy.In our Ask the Expert Series, we interview leaders from our partner organizations who are helping lead their brands to new heights in AdTech. Today’s interview is with Paul Zovighian, VP of Marketplaces at Index Exchange.
Sell-side activation vs. buy-side packaging
What’s fundamentally changed with sell-side decisioning, and how does it now diverge from traditional buy-side packaging?
Sell-side decisioning is programmatic’s next major evolution – one that redefines how intelligence enters the transaction. Advances in infrastructure and computing power now allow supply-side platforms(SSPs) to act in the crucial pre-bid moment, enriching impressions with context, quality, and data before they reach the buy side.
This isn’t just about efficiency; it’s about unlocking new value. Smarter requests mean buyers see only the most relevant opportunities, while publishers gain recognition for the true worth of their audiences and environments.
We’re still at the beginning of this shift. Many players still package inventory without engaging in real pre-bid intelligence. As the market matures, the companies that evolve toward sell-side decisioning will be the ones to set the pace for programmatic’s future.
Economic shifts with scaled curation
As curation scales, what economic levers shift for both publishers and buyers, and how do those shifts influence deal structure and media planning?
As curation scales, one of the most powerful levers is data. It’s the industry’s most valuable asset, and on Index it keeps its full worth. We don’t take a platform cut or add hidden fees, so data partners benefit from the clearest, most efficient economics in the market. Data vendors gain confidence that their economics aren’t eroded by a platform tax.
For publishers, this means stronger yield and more ad spend flowing directly into working media. When data retains its full value, it enhances how impressions are packaged, priced, and differentiated—driving more competition for quality inventory and more opportunities for revenue.
For buyers, it means compressed supply paths and total transparency – they know exactly what they’re paying for. With no intermediaries and full transparency into economics, buyers gain a clearer view of where their budgets go and the confidence that their investments reach real audiences in trusted environments. They benefit from cleaner supply chains, better performance, and more meaningful alignment between spend and outcome. The result is a healthier marketplace where both sides benefit from efficiency, fairness, and scale.
Moving decisions upstream for value
What decisions historically made in DSPs should now move upstream to publishers or SSPs to unlock more value, and which should remain buy-side?
Decisioning is no longer confined to demand-side platforms(DSPs). We can enrich impressions by applying intelligence — via data, algorithms, creative technology, and more, before they even reach the buy side — adding context, filtering out low-quality supply, and expanding audience discovery.
This isn’t about shifting roles; DSPs remain critical for campaign strategy, optimization, and budget allocation. The sell side simply ensures every bid request is smarter from the start, creating more value for all parties.
In doing so, we also alleviate pressure on DSPs — enabling more comprehensive data discovery by searching for signals at the top of the funnel, prior to optimization. That means DSPs can focus on what they do best, supported by a cleaner, more transparent supply path.
Index Marketplaces use cases explained
Index Marketplaces is designed to enable the strength of our partners, and Experian brings one of the broadest sets of demographic and audience insights in the industry. That scale enables a wide variety of applications, from more precise audience activation to deeper measurement and analytics.
What’s different on the sell side is how those insights are applied. By activating Experian’s syndicated audiences directly at the point of decision, their value is realized in real time and across the full scale of the open internet. Buyers gain a clearer path to relevant audiences, and publishers benefit from stronger alignment between data and media.
It’s an approach that ensures partners like Experian can maximize the impact of their assets while helping the market move toward more intelligent, performance-driven activation.
Identity signals with stronger privacy
For identity partners like Experian, what’s the right way to bring audience, context, and propensity signals into sell-side activation?
The beauty of sell-side decisioning is that it reduces the hops in how identity signals are applied. Without it, IDs have to travel through multiple platforms, creating extra handoffs and additional risks of data loss or leakage.
With sell-side decisioning, those signals are obfuscated under a deal ID and applied directly at the point of decision. That means audience, context, and propensity data are activated securely, without ever leaving the sell-side environment.
For partners like Experian, it’s the cleanest path to value: fewer hops, stronger privacy protection, and clearer economics for everyone in the chain.
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About our expert
Paul Zovighian
VP of Marketplaces, Index Exchange
Paul Zovighian carries over a decade of industry expertise, stemming from his analytics and optimization roots to his current post as VP, Marketplaces, where he is focused on the commercial activation of Index’s newest product, Index Marketplaces. Previously, in his role as VP of corporate development, Paul led Index’s first-ever business acquisition. In his spare time, he enjoys long walks on the beach and befriending cats in NYC’s thriving bodega community.
About Index Exchange
Index Exchange is a global advertising supply-side platform enabling media owners to maximize the value of their content on any screen. They’re a proud industry pioneer with over 20 years of experience connecting leading experience makers with the world’s largest brands to ensure a quality experience for consumers.
FAQs
Sell-side decisioning allows publishers to add intelligence, like audience data and context, before ad impressions are sent to buyers. This makes the process more efficient and ensures advertisers see only the most relevant opportunities.
Traditional buy-side packaging happens after impressions are sent to demand-side platforms (DSPs). Sell-side decisioning moves some of that intelligence upstream, enriching impressions earlier and reducing inefficiencies.
Curation refers to the process of organizing and enriching ad inventory with data and context. For publishers, it leads to better yield and more ad spend going directly to their media. For advertisers, it means clearer, more transparent supply paths.
By applying audience and identity signals directly on the sell side, data stays within a secure environment. This reduces the number of platforms handling sensitive information, lowering the risk of data loss or leakage.
Experian provides demographic and audience insights that are activated directly at the point of decision. This helps advertisers reach the right audiences more effectively while ensuring publishers can maximize the value of their inventory.
When publishers and SSPs handle some decisioning earlier, DSPs can focus on campaign strategy and optimization. This creates a cleaner, more efficient process for everyone involved.
A deal ID is a unique identifier used in programmatic advertising to bundle audience and context signals securely. It ensures data is applied without being exposed or shared across multiple platforms.
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With Tapad, part of Experian, technology, AdsWizz AudioMatic is the first Audio buying platform to offer cross-device identity resolution across the U.S. and EMEA NEW YORK and LONDON, July 17, 2019 /PRNewswire/ — Tapad, part of Experian and a global leader in digital identity resolution, today announced a new joint capability with AdsWizz , the leading technology provider for digital audio advertising solutions. The partnership combines Tapad's digital cross-device technology with AdsWizz's AudioMatic buying platform, enabling the ability to connect audio ad experiences across screens. AudioMatic, AdsWizz's audio-centric buying platform, supports programmatic audio buying and entirely new audio ad experiences for listeners. The integration of The Tapad Graph onto its platform enables new opportunities for marketers to reach, engage and measure each interaction with their desired consumers on digital radio and podcasts channels, and across devices. This partnership makes AdsWizz the first audio buying platform to offer this enhanced cross-device identity capability in the US and EMEA markets. "Marketers need privacy-safe digital identity resolution to reach their consumers," says Tom Rolph, VP of EMEA at Tapad. "With audio becoming an increasingly powerful medium for engagement, it's important that our technology extends to this channel, which is why we are excited to announce our integration with AdsWizz's AudioMatic platform." Digital audio is experiencing high growth, with 84% of advertisers and agencies saying it will play a bigger role in their media plans in the future. Today, 60% of digital audio is consumed via a mobile device.* The Tapad Graph is the largest digital identity resolution graph with differentiated global scale. The partnership enables audio advertisers to leverage The Tapad Graph for enhanced attribution, analytics, and targeting. Alexis van der Wyer, CEO at AdsWizz, added, "Digital audio is increasingly becoming ubiquitous in our media consumption and in our daily digital interactions, and because of that, audio advertising offers tremendous opportunity to personally interact with consumers in every moment of their daily lives. By integrating with Tapad, we enable our advertising partners to increase the effectiveness and the relevance of their marketing messages across audio channels." To learn more about Tapad and our digital identity resolution products, visit our identity solutions page. *Digital Audio Exchange, "The Rise of Digital Audio Advertising," https://thisisdax.com/wp-content/uploads/2019/07/DAX-Whitepaper.pdf About Tapad Tapad, Inc. is a global leader in digital identity resolution. The Tapad Graph, and its related solutions, provide a transparent, privacy-safe approach connecting brands to consumers through their devices globally. Our one-of-a-kind Graph Select offering enables marketers the flexibility and freedom of choice to correlate devices to varied objectives, driving campaign effectiveness and business results. Tapad is recognized across the industry for its product innovation, workplace culture and talent, and has earned numerous awards including One World Identity's 2019 Top 100 Influencers in Identity Award. Headquartered in New York, Tapad also has offices in Chicago, London, Oslo, Singapore and Tokyo. About AdsWizz: AdsWizz has created the end-to-end technology platform that is powering the digital audio advertising ecosystem. AdsWizz powers well-known music platforms, podcasts and broadcasting groups worldwide with a comprehensive digital audio software suite of solutions that connect audio publishers to the advertising community. From dynamic ad insertion to advanced programmatic platforms to innovative new audio formats, AdsWizz efficiently connects buyers and sellers in digital audio. AdsWizz is headquartered in San Mateo, California, with an IT Development hub in Bucharest, Romania, and presence in 39 markets around the world. About AudioMatic: AdsWizz Demand Side, audio-centric DSP and audio buying platform, AudioMatic, enables programmatic audio buying and entirely new audio ad experiences that are proven to be more engaging and more effective, and have delivered measurable results for agencies and their brands all over the world. All the biggest ad agencies have used our programmatic trading platform, including Omnicom, GroupM, Havas, Publicis, Mobext, and more. Contact us today