
We’re excited to introduce the next segment in our Q&A series, Ask the Expert! Ask the Expert features a series of conversations with product experts where we dive into the areas you care most about like identity resolution, targeting, attribution, and more. Our next segment features a conversation about sell-side targeting.
Mike Chowla, SVP of Product at OpenX joins us to chat with Experian’s SVP of Sales & Partnerships, Chris Feo. OpenX is the world’s leading sell-side platform for audience, data, and identity targeting. In their conversation, Mike and Chris review:
- The shift to targeting on the sell-side
- How first- and third-party data are being used on the sell-side
- How OpenX is thinking about alternative IDs

What is sell-side targeting?
Sell-side targeting optimizes the way buyers and supply-side platforms (SSPs) work together. This approach moves the responsibility of inventory and audience targeting from the demand-side platform (DSP) into the SSP, providing advertisers with increased reach and better performance.
With sell-side targeting, locating your target audience becomes easier as you have a more direct connection with publishers. This increases your ability to scale against a target audience. Specifically, the SSP directly matches the buyer’s audience or data segment to the publisher inventory and audience and automatically sends the impression to the buyer’s DSP of choice via a deal ID, providing advertisers with improved reach and performance metrics as well as control over their inventory. With more direct access, your budget can likely go further, and you can decrease your effective cost per mille (eCPM) and get more working media.
“Supply-side targeting is the next phase of how supply path optimization (SPO) and buyers will need to work more closely with SSPs.” – Mike Chowla, SVP, Product, OpenX
Buying on the sell-side vs. open exchange
When buying on the open exchange, you have access to a vast number of impressions. With sell-side targeting, you can apply your campaign targeting directly on the supply-side and activate those impressions through a deal ID. Sell-side targeting works across various formats including web display, mobile, in-app, and connected TV (CTV) for a seamless advertising experience.
OpenX offers the unique capability to match users using their device graph within their SSP. This means you can target users from traditional data sources such as cookies or mobile ad IDs (MAIDs) and reach them in CTV or app environments. This gives you even more reach and precision in your advertising efforts.
The role of first- and third-party data on the sell-side
Buyers are showing a keen interest in bringing their own first-party data into the process of sell-side targeting. Meanwhile, certain agencies have been actively involved in working with identity and data. OpenX is currently collaborating with several agency ID solutions such as Choreograph, Merkel, and Horizon.
Buyers are also purchasing third-party data and data segments from various providers through OpenX’s platform for sell-side targeting purposes. By utilizing this data on the supply side, buyers are able to increase the match rate against their first- and third-party data segments in all environments. This ultimately maximizes scale against these audiences and drives a more efficient CPM due to eliminating waste.
Measurement and attribution on the sell-side
In the current state of SSP advertising, there is more of an emphasis on targeting capabilities than measurement and attribution. That said, SSPs can provide granular log level reports that can be utilized for multi-touch attribution (MTA) or mixed media models (MMM). These granular insights not only inform measurement and attribution models, but they also provide valuable optimization insights such as clearing price.
Additionally, advertisers have all of the same reporting options that they’re used to getting through their DSP because their buys are activated via deal ID in the DSP of their choice.
What to consider when transitioning to sell-side targeting
There are two primary items you should consider when transitioning to sell-side targeting:
- Supply
- Reach
Reach
Collaborating with partners who have the right capabilities can greatly improve reach and audience extension across different devices. For instance, if you bring your first-party audience or a third-party audience and are identifying that consumer via a cookie or MAID, being able to extend that targeting segment to other devices and platforms can be highly beneficial.
Supply
It’s crucial to collaborate with partners who have the right access to supply and direct connections with publishers. While targeting is essential, it’s equally important to have high-quality supply to drive performance.
Reaching consumers in a cookieless future
Whether you’re targeting on the demand or sell-side, it always starts with the consumer and who you’re trying to reach.
Significant changes in the consumer privacy landscape are impacting advertisers’ ability to access various signals emitted by consumers through their devices and browsers. Recent developments from Apple and Google have further amplified this situation.
Alternative IDs as a solution to signal loss
In response, we’re seeing the emergence of alternative IDs like UID2, Ramp ID, and ID5. OpenX supports these types of IDs and considers them crucial for audience buying in a privacy-centric cookie-less future.
We are still in the early stages of this evolution. While some of the IDs have good coverage, cookies will continue to be the primary targeting method as long as they remain available.
Nevertheless, we see alternative IDs as one of several solutions that will become increasingly important as third-party cookies disappear. Contextual buying will also emerge, and a set of solutions will come together to enable advertisers to keep finding their audience in a cookie-less world.
Overcoming signal loss with identity resolution
Looking ahead, as we continue to lose signals due to the evolving consumer privacy landscape, we will witness two things:
- Continued fragmentation
- A wide variety of identifiers
Content will continue to be available on various devices. We’re currently experiencing the emergence of connected TV, but who knows what other devices will surface over the next five to ten years. As cookies disappear, which have been the primary identifier, and alternative IDs are introduced, the wide variety of identifiers will create further fragmentation. This highlights the need for identity in the future.
Identity resolution at Experian matches fragmented identifiers to a single profile to create a unified, cross-channel view of your consumers. Our identity resolution solutions can help future-proof your marketing strategies.
How Experian and OpenX work together
Experian is a key player in OpenX’s OpenAudience solution and helps to power many of their data segments as well as their identity graph. While OpenX collaborates with a variety of providers and operates a fully interoperable platform, Experian remains valuable to the core technology within OpenX’s SSP.
“Experian powers a lot of the data segments and identity graph that OpenX has in our OpenAudience capabilities as part of our SSP.” – Mike Chowla, SVP, Product, OpenX
Watch the full Q&A
Visit our Ask the Expert content hub to watch Mike and Chris’s full conversation on sell-side targeting. In the Q&A, Mike and Chris also share their thoughts on the impact artificial intelligence (AI) will have on the AdTech industry and their go-to sources for staying up to date on all things AdTech.
About our experts

Mike Chowla, SVP, Product, OpenX
Mike Chowla is the SVP of Product at OpenX where he leads product development and innovation, from customer discovery and user research to the development, delivery, and support of a market-leading product suite. Chowla holds a BS in Engineering from the University of Southern California, and an MBA from The University of Pennsylvania.

Chris Feo, Chief Business Officer, Experian
As SVP of Sales & Partnerships, Chris has over a decade of experience across identity, data, and programmatic. Chris joined Experian during the Tapad acquisition in November 2020. He joined Tapad with less than 10 employees and has been part of the executive team through both the Telenor and Experian acquisitions. He’s an active advisor, board member, and investor within the AdTech ecosystem. Outside of work, he’s a die-hard golfer, frequent traveler, and husband to his wife, two dogs, and two goats!
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Advertisers are always looking for ways to improve the targeting and effectiveness of their campaigns. One strategy that's gaining popularity lately is using curated private marketplace (PMP) deals, allowing advertisers to buy premium ad inventory in a private auction environment. But how do data providers and PMPs work together to make PMP advertising more successful? What is a private marketplace (PMP)? Advertising PMPs, or private marketplace deals, are a type of programmatic advertising where advertisers and publishers negotiate and set up a direct deal between themselves to buy or sell advertising inventory in a private auction environment. In PMP deals, publishers can make their premium inventory available to a select group of advertisers, who can bid on it in a private auction using demand-side platforms (DSPs). These private auctions typically offer higher-quality inventory and a more targeted audience than open exchange auctions, which are accessible to all advertisers. However, traditional PMPs had their limitations, including often being limited to accessing inventory from a single publisher group. Audigent takes PMP advertising to the next level with SmartPMPs Audigent's key differentiator is that instead of activating audience data from the DSP, which is the industry standard, they integrate directly with supply-side platforms (SSPs). By taking this route, audience data and inventory from hundreds or even thousands of publishers can now be packaged together into a single deal ID / SmartPMP. SmartPMPs empower media buyers with the ability to access and buy against unique, customizable data segments on premium curated publisher inventory in combinations that otherwise would not have been available. Activating data via the supply-side also enables supply-side optimizations. This means that instead of simply being a data provider, Audigent plays an active role in the success of media buyers' programmatic campaigns by optimizing toward performance goals in coordination with demand-side buyers. The result is the full alignment of demand- and supply-side technologies for the first time in programmatic. SmartPMPs drive campaign performance Audigent performance data compared to the programmatic open exchange: How Experian and Audigent partner in PMP advertising Experian and Audigent collaborate using Consumer View audience data. By supplying valuable insights into users' interests, behaviors, and demographics, we help advertisers create more targeted and personalized ad campaigns with Audigent. This can lead to higher engagement rates, greater brand awareness, and increased conversions for Audigent and Experian clients. By activating Experian data via Audigent SmartPMPs, advertisers unlock the ability to reach highly engaged users across premium, curated inventory sources on key channels like connected TV (CTV), display, video, and more. Unlock the potential of programmatic advertising with us Our strategic collaboration with Audigent is transforming the programmatic advertising space. Our partnership enables our customers to tailor their ads directly to their desired audience. This elevated personalization results in higher conversion rates and optimized campaigns for superior ROI performance. Contact us for more information about our digital audience segments on the Audigent platform. To learn more about our partner Audigent, visit www.audigent.com. Contact us Latest posts

A successful back-to-school campaign strategy starts with identifying the key audience segments to target. Over half of all searches related to back-to-school happen within a select group of consumers – knowing which ones can go a long way in forming an effective marketing strategy. Focus on this smaller, targeted set to maximize your efforts. With over $72 billion projected in total U.S. back-to-school retail sales this year, you can capture more spend than ever before during this big shopping season by tailoring your strategy to a smaller set of targeted shoppers. Experian data can help you make the most of your back-to-school campaigns by uncovering the top five back-to-school audiences. Five audience segments for 2023 Our data provides key insights into who these shoppers are and how to reach them, allowing you to create personalized content tailored to their needs. What are the top five audiences you should add to your 2023 back-to-school campaign? High-Net-Worth Households Bilingual Multi-Generational Households Suburban Savvy Shoppers Young Suburban Families Tech-Savvy Families What do these audiences look like? Who are they? Where do they shop? Let's review each audience in a little more detail. High-Net-Worth Households This group consists of households with above-average income and education levels. They often lease luxury cars, purchase products in every channel, travel extensively, and are philanthropic supporters of the arts. Key features Wealthy Highly educated Lease luxury cars Purchase products in every channel Travelers Philanthropic supporters of the arts Bilingual Multi-Generational Households Large households in multilingual neighborhoods, filled with married parents and their kids. They are financially cautious, bilingual, and participate in team sports. Key features Bilingual Large households Married with kids Financially cautious Team sports Suburban Savvy Shoppers Middle-aged couples and families who earn above-average incomes, maintain active lifestyles, and spend their money on quality home products and furnishings. Key features Affluent Athletic activities Home products & furnishings Sporting goods High-priced children’s clothing Young Suburban Families This segment includes households in the middle child-rearing stages of life, typically with a dual income household and multiple children of school age. They typically have spacious single-family residences in suburban neighborhoods that are slightly above average in housing values. On weekends, these suburban young families often engage in activities like skateboarding, biking, and video games with their children. Key features Comfortable lifestyle Children’s games Wholesale members Family-centric activities Tech-Savvy Families Highly educated, affluent couples in their peak earning years, with a preference for both traditional and digital media, who live in upscale housing and are savvy investors and environmental philanthropists. Key features Highly educated Affluent Upscale housing Savvy investors Environmental philanthropists Tech apprentices Watch our 2024 video for tips from industry leaders for back-to-school In our new Q&A video with Experian experts, we explore changing consumer behaviors surrounding back-to-school shopping in 2024. In the video, we discuss: Anticipated shifts in consumer behaviors and shopping habits Tactics we predict marketers will employ to navigate signal loss Which channels will be the most successful And more! Watch now Latest posts

The AdTech industry is undergoing rapid changes as it adjusts to the impacts of data deprecation and ever-changing privacy regulations. At the same time, there are fears of a potential economic downturn. How should you handle marketing in a recession? What should your marketing mix look like? In this blog post, we'll cover how to navigate this uncertainty and three essential ingredients for your marketing mix. First, we'll look at the complexity and uncertainty facing marketers. Turbulence with Twitter After Elon Musk's Twitter takeover in October 2022, half of Twitter's top 100 advertisers left the platform and started to seek out alternatives. The retail media boom In the next four years, Forrester Research projects that U.S. retail media ad sales will double to reach 85 billion by 2026.1 Most of this growth is catalyzed by CPG and consumer electronic brands that have a scarcity of zero- and first-party data; they need more media closer to the point of purchase, especially as CFOs are scrutinizing budgets. Consumption continues to fragment It's becoming harder than ever to reach the right person, at the right time, predict their intent, and get a 360-degree view of your customer.2 Data deprecation is top of mind According to Forrester Research, updating their data strategy to address data deprecation is the number one priority for marketers. Addressing data deprecation is also a priority for consumers, who increasingly feel that audience targeting is more intrusive than beneficial.3 Data deprecation affects identity solutions Third-party data and mobile ad IDs (MAIDs) are the connective tissue for identity solutions. As we see those signals go away, there are fewer linkages to resolve identity and it's leading to a rise in fragmented, duplicated, and shallow identity. Recession fears In addition to everything happening in AdTech, there are also fears of a possible recession. According to Forrester, 40% of Gen Z and 41% of Millennials believe fears of an upcoming recession are greatly exaggerated. On the other hand, only 24% of Gen X and 12% of Baby Boomers agree.4 Navigate uncertainty and marketing in a recession With the current macroeconomic conditions, data deprecation, and fragmented consumption in mind, what should your strategy look like for marketing in a recession? Forrester recommends three strategies: People-led planningTest creativeOptimize for marginal costs People-led planning Planning doesn't have to be fragmented. Map offline and online media exposures to consumer decision journeys. Strategies like lifetime value (LTV) driven audience segmentation to correlate awareness at top of the funnel layered with demand generation exposures harvested later in the funnel. To do this, it's crucial to work with providers that give you visibility into the audience buyer's journey to awareness, intent, consideration, and purchase, all the way through to loyalty.5 Test creative Make your creative work harder for you. Apply the same rigor with your creative that you applied to segmentation. Utilize multivariate testing to identify creative that is winning or losing. When you understand how each variable performs, you can scale the variables with creative optimization to have a material impact on performance. Optimize for marginal costs Optimize for marginal costs of acquisition, not just the average. Adjust for incrementality – what is the cost to acquire one more customer, rather than the average cost of acquisition. Find the right marketing mix in a recession With these changes in mind, how can you find the right marketing mix in a recession? We can show you the way. You can create the right marketing mix with three key ingredients: Audiences Identity Activation Let’s explore each ingredient to start you down the path toward marketing campaign success. Audiences: Know your customer The first ingredient to add to your marketing mix in a recession is your audience. Knowing your customer is key to targeting the right audiences successfully. Data-driven targeting can help you find your best audiences based on demographics, modeled lifestyles, and behaviors to improve marketing campaign performance. Not sure where to start when it comes to developing your target audience strategy? We can help. We track digital usage of our data used by advertisers and identified the top four digital audiences that advertisers purchased over the last four years. Four digital audiences to consider Marketing strategies are only as strong as the data foundation they’re built on. The top four digital audiences that advertisers are purchasing from Experian include: Demographics Behavioral Modeled Lifestyles Custom Audiences Demographics Examples include age, gender, relationship status, living situation, life experience, and employment. Behavioral This audience allows marketers to identify households that are more likely to engage in certain activities or belong to certain groups. Modeled Lifestyles Experian’s Mosaic® USA segmentation. This is a household-based consumer lifestyle segmentation system that classifies all U.S. households and neighborhoods into 71 unique types and 19 overarching groups, providing a 360-degree view of consumers’ choices, preferences, and habits. Custom Audiences This is an audience blended from multiple sources or derived from first-party look-alike modeling. Changes in digital audience strategies Over the last four years, Modeled Lifestyles and Custom Audience purchases represented the smallest share of digital activation, while Behavioral and Demographic segments were more popular with advertisers. When the U.S. rolled out the COVID-19 vaccine, consumers became more active. People were shopping in stores, returning to the gym, and taking trips that they had postponed during the height of the pandemic. Marketers turned to higher compositions of Demographic and Modeled Lifestyles to reach these audiences between April and December of 2021. Sustained growth in Demographic audience activation could suggest a move back to tried and true audience strategies as signals continue to decline and amid evolving regulation. With economic uncertainty, marketers return to what they know. Traditional targeting methods like Demographics and Modeled Lifestyles are the baseline of many marketing strategies and we predict that we will continue to see marketers activating against these data sets. Download our 2023 digital audience trends and predictions report to discover our full insights on how digital activation has changed and where we’re headed. Identity: Understand the customer journey Identity resolution is the next ingredient that you should add to your marketing mix in a recession. It should be a foundational element of every marketer's strategy. What is identity resolution? In the simplest terms, identity resolution is the process of matching different devices, IDs, and touchpoints back to a single person. Identity resolution expands marketers' addressability and reach of their target audience and helps inform and measure accurate customer journeys. Identity resolution challenges Identity resolution faces two main challenges: Making the data actionable. Humans are complex. We have behaviors that change based on our current social groups and life events, we use dozens of internet-connected devices in a single day, and we exhibit distinct behaviors that happen online and in the physical world. This means marketers have mounds of data being collected from different channels based on that dynamic behavior of people, making it feel impossible to organize the data in a way that makes it feel actionable, know how it ties back to real humans, and ensure they're doing it in a responsible and compliant way. Signal loss. Marketers continue to lose important signals that they've previously been able to rely on to inform their next move. Signals are being lost as our industry places more privacy regulations and restrictions on what can be tracked and as consumers themselves change behaviors to protect their privacy. As consumer behaviors continue to change and signals disappear, identity resolution gets exponentially harder. Expand addressability and reach with identity resolution Data deprecation adversely affects identity solutions, but identity resolution should be a key ingredient in your marketing mix. Identity resolution ensures that consumers experience more relevant products, offers, and messaging – allowing you to reap the ROI benefits of hitting consumers at the perfect point in their journey. Finding an identity resolution partner When selecting an identity resolution partner, you should understand the data and processes that are implemented behind the scenes. It's important to know: What makes up their consumer database?How fresh is their data?What identifiers can they match?How do they protect consumer privacy? At Experian, we're rooted in deterministic offline data which creates a stable foundation. We then layer in digital and behavioral touchpoints. We have decades of experience managing consumer data safely. We have insights on 250 million individuals, three billion devices, and one trillion device signals. Our databases evolve as quickly as the human behavior powering them does. Our approach to identity resolution is open and agnostic. This means we can collect and ingest nearly all available offline and online identifiers. We can do this in all types of environments, including connected TV (CTV), mobile, and cookieless. We have two types of identity resolution: OfflineDigital This ensures we control how known and anonymous data points are connected for consumer privacy purposes. Identity resolution in action Our depth of data gives our clients access to see the whole human and gain the context around singular data points. Let's walk through an example of our identity resolution capabilities. Challenge Our TV media platform client needed to measure the effectiveness of an ad campaign they were running on behalf of a leading consumer electronics brand. The TV platform wanted to be able to accurately report on which consumers made a purchase after seeing the brand’s TV commercial on their platforms. Solution Using our digital identity resolution services, our client could capture online purchases made on the brand’s website and link them back to a consumer profile. In addition to online transactions, our client used our offline resolution services to resolve email addresses of consumers that purchased offline, using warranty registration details. With online and offline purchase data now resolved back to an individual ID, we also performed identity resolution on viewers in their TV subscriber files that had also been exposed to the TV commercial. This allowed us to identify subscribers that had both seen the ad and purchased a product. We provided our client with a packaged report that they could white-label and pass along to the brand. Results By providing this attribution reporting to the brand, the TV platform could validate the ROI spent on their platform. The brand was extremely satisfied with the results, and they transitioned the one-off TV commercial into an ongoing campaign and purchased quarterly measurement. This led to solid recurring revenue for the TV platform. Activation: Experiment and measure the impact The third and final ingredient to finding the right marketing mix in a recession is activation. Experimentation is the best way to determine which channels work best for your business and provide the most ROI. Demand-side platforms (DSP), video platforms, and sell-side targeting are three important activation channels that you should consider experimenting with. Demand-side platforms We continue to see increased demand for environments where alternative identifiers are being transacted (like DSPs and video). Social channels are decreasing; this can be attributed to changes in privacy, security, and concerns around brand safety. Amazon’s DSP is catching up with Google and Meta to become a top ad platform. Video platforms Digital video and other video channels like over-the-top (OTT) and CTV will continue to grow. Digital video will capture the most ad spend in 2023 (22.4% in 2023 vs 19.3% in 2022). Because of this, advertisers are placing bigger bets on the combination of addressable and CTV. Sell-side targeting Data sharing relationships will become strongest on the sell-side as we move toward consented first-party data. Ad dollars are shifting to channels that use the sell-side approach, like retail media and CTV. Sell-side targeting enables brands to access large amounts of inventory across publishers and retailers. By getting closer to the ad inventory, advertisers can future-proof their strategies by having more access to better data signals. Direct relationships like these will be necessary as privacy regulations increase and signal loss continues. We can help you find the right marketing mix in a recession Now is the time to be opportunistic. Gaining share of voice during a downturn is cost-effective. Proactive marketing builds pent-up demand. Delivering the right message in the right place at the right time means truly knowing your prospects and customers as individuals. At Experian, we bring you the highest-resolution picture of people, so you and your customers can connect with confidence. You can turn prospects into customers with the right audience. By understanding your customers better, you can find more like them. Together we can power better results. Get started Find the right marketing mix Check out our webinar, "Find the right marketing mix with rising consumer expectations." Guest speaker, Nikhil Lai, Senior Analyst from Forrester Research, joined Experian experts Erin Haselkorn and Eden Wilbur. Watch the recording to learn: New data on the complexity and uncertainty facing marketersConsumer trends for 2023Recommendations on finding the right channel mix and the right consumers Watch now Sources 2022 Retail Media Ad Sales Forecast, US. Forrester Research, Inc. 2022. Forrester Analytics Consumer Technographics® Technology, Media, and Telecom Topic Insights 1 Survey. Forrester Research, Inc. 2020. CMO Pulse Survey. Forrester Research, Inc. July 2021. Forrester's Consumer Energy And Retail Online Survey. Forrester Research, Inc.People-Led Planning Solves Customer Problems to Drive Growth. Forrester Research, Inc. August 2, 2021. Latest posts