Semantic Coherence: OpenX – Signal Evidence & AI Readability

[H2] Adtech That’s Smarter, Safer, and Gives You Control
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EDUCATIONAL VIDEO SERIES
[H2] AI Explained for Real People, Not Algorithms
In Simplifying AI, we translate complex technical concepts into clear, actionable explanations. No buzzwords in sight.
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[H2] Discover What Makes Us Different
[H5] Quality
Quality is built on transparency and powered by direct publisher partnerships, actionable data, AI-driven fraud detection, and first-to-market innovation.
[H5] Performance
Performance is driven by the industry’s largest supply-side identity graph, proprietary AI models, and a user interface that together double reach for better outcomes.
[H5] Adaptability
Adaptability is unlocked through interoperable tools and intuitive platforms, giving partners customizable solutions that deliver superior control and performance.
[H2]
[H3] Our Products
Built on a legacy of data and identity, we are ushering in the next era of digital advertising: safer, smarter, and built to adapt
[H3] OpenXSelect™
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[H4] OpenXSelect
A flexible curation, supply-side targeting (SST), and deal creation platform
[H3] OpenXBuild™
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[H4] OpenXBuild
A flexible software suite for building better advertising solutions
[H3] OpenXControl™
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[H4] OpenXControl
A yield and monetization platform connecting publishers to premium demand
[H3] OpenXExchange™
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[H4] OpenXExchange
A real-time, scalable marketplace for quality inventory and automated ad buying
[H2] What Our Partners Say
“At Havas Media Network North America, transparency and quality are essential to how we activate programmatic media. OpenX’s direct publisher relationships and focus on supply path visibility support our commitment to delivering trusted, premium environments for our clients.”
Tim Engler / EVP Commercial Investment, NA
“At The Guardian, our reader-first model and commitment to independent journalism shape every decision we make, including how we approach advertising. OpenX helps us maintain transparency, protect the user experience, and ensure our inventory is valued appropriately in the marketplace — all while staying aligned with our principles.”
Duane Thompson / Head of Digital Optimisation, Guardian News & Media
“Over the past 18 months our partnership with OpenX has evolved from an SSP you target in a DSP to a partner we have built custom solutions with. The OpenX approach to supply, particularly in CTV, has improved all of our quality metrics and driven greater performance for our clients.”
Wayne Blodwell / Global SVP Programmatic
“With OpenXBuild, we can apply our audience enrichment and bidding algorithms directly inside the exchange. By evaluating impressions closer to supply and bidding more selectively, advertisers have seen a 70% reduction in cost-per-conversion on OpenX traffic compared to unshaped SSP inventory.”
Teddy Jawde / SVP, Product Management
“Because of our relationship we’re able to work together to not only meet campaign goals but also provide stronger results for our clients. With OpenX and Attain, we’re optimizing based on verified outcomes. Advertisers are no longer forced to rely on proxies like CTR, which is a leap forward for programmatic and for our clients.”
Ronald Barillas / Associate Director, Digital Activation
[H2] In the News
[H6] ‘It’s landing at a strange time’: Can POSSIBLE shed light on adland’s black boxes?
Learn More: ‘It’s landing at a strange time’: Can POSSIBLE shed light on adland’s black boxes?
[H6] Citing Supply-Side Intel Gains, Buyers Push Past Cheap Reach
Learn More: Citing Supply-Side Intel Gains, Buyers Push Past Cheap Reach
[H6] Ad Tech Briefing: The days of bloat are over, as efficiency drives ad tech’s C-suite exodus
Learn More: Ad Tech Briefing: The days of bloat are over, as efficiency drives ad tech’s C-suite exodus

[H3] Key benefits
[H3] Supply Quality and Control
[H4] Supply Quality and Control
Control where your ads run. Ensure quality with direct publisher connections, curated inventory, AI-driven quality scores, and supply authentication and protection, powered by trusted partners.
[H3] Scaled Audience Targeting
[H4] Scaled Audience Targeting
Double your reach against qualified cross-channel audiences with the largest independent supply-side identity graph, including more than 242 million connected TV (CTV) users.
[H3] Optimize Performance, Strengthen Insights
[H4] Optimize Performance, Strengthen Insights
Improve campaign performance with real-time, pre-auction intelligence. Access easy-to-use proprietary predictive AI and bidstream decisioning, or deploy partner models to reduce waste and enhance outcomes.
[H3] Maximize Customization and Control
Set your own standards and easily curate or target using intuitive tools designed for your team’s success
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[H2] By the Numbers
[H3] 150k+
Direct publisher domains
[H3] 11x+
Lower cost-per-action using AI-powered optimization tools*
*Source: OMD, major tech brand, 2025 campaign
[H3] 2x
Higher match rate using the OpenX identity graph versus industry standard**
** Source: Merkury, major grocery store, 2025 campaign
“OpenXSelect provides curation that is totally transparent, with levers that put the control in the buyers’ hands. Not only will we get the ability to drive outcomes against specific KPIs end-to-end and access OpenX’s proprietary identity graph, we’ll also gain the confidence of high-quality supply and the time-savings of an intuitive design.”
Wayne Blodwell / Global SVP, Programmatic
[H3] Confused by Curation? We Can Help
Curation and SST work better together. Use curation to control quality, then layer on SST to reach consumers, and drive performance and reach
[H3] Curation
Curation lets buyers select and organize ad inventory beyond simple site lists. Curated deals provide controls for quality, brand suitability, and contextual relevance, and are easily transacted across demand-side platforms (DSPs).
[H3] Supply-Side Targeting (SST)
SST is the evolution of programmatic curation. Buyers can apply first-, second-, and third-party data, as well as custom decisioning models, before the auction, improving campaign performance, efficiency, and scale in real time.
[H3] Confused by Curation? We Can Help
Curation and SST work better together. Use curation to control quality, then layer on SST to reach consumers and drive performance and reach.
[H3] Curation
Curation is the practice of organizing digital ad inventory into curated packages, either ready-built or custom, to meet a brand’s needs. Curation simplifies programmatic buying by creating deal IDs aligned to brand preferences—delivering predictability, transparency, and safety at scale.
[H3] Supply-Side Targeting (SST)
Supply-Side Targeting is the next evolution of curation. It layers advanced audience and performance data directly into curated packages using: First-, second-, or third-party audience segments, AI/ML models for attention, conversion, or engagement, identity data and predictive signals. This data is integrated within the supply path, eliminating extra hops, minimizing data loss, and maximizing relevance.
Activate Media Buys With Turnkey, Curated Inventory, or Data-Driven Audience-Targeting Packages

Inventory Packages
Data-Driven Packages

[H3]
Gamers

US consumers spent over $26.7 billion on mobile games in 2025. OpenX’s curated gamers package reaches highly engaged consumers across video and display inventory at scale. Win with brand-safe inventory that reaches gamers enraptured by their favorite gaming apps and sites.

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[H3]
Live Sports

Get in on all the action with live sports content via high-quality inventory from TV by OpenX. Ensure you reach highly engaged sports fans this season as they tune in live to cheer on their favorite teams on MLB Network, Fox Sports, DirecTV, and more.

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Explore all Inventory Packages

[H3]
Baseball Fans

With nearly 19.4 billion minutes watched, the 2025 baseball season set a new consumption record – up 34% from the previous year. Leverage OpenX’s curated baseball enthusiast package that precisely reaches baseball fanatics, people shopping for team gear, ballpark ticket purchasers, and more.

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[H3]
General Sports

62% of sports fans lock in to supporting a pro sports team by the age 17. Win big with OpenX’s turnkey, data-driven sports package that targets users who consume professional sports content, purchase sporting event tickets, visit professional sports arenas, and more.

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Explore all Data-Driven Packages

[H3] Our Partners
With more than 80 directly integrated data partners, customers can enhance their curation, SST, and measurement strategies for any screen and any campaign objective.
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[H3] In the News
[H6] ‘It’s landing at a strange time’: Can POSSIBLE shed light on adland’s black boxes?
Learn more: ‘It’s landing at a strange time’: Can POSSIBLE shed light on adland’s black boxes?
[H6] Citing Supply-Side Intel Gains, Buyers Push Past Cheap Reach
Learn more: Citing Supply-Side Intel Gains, Buyers Push Past Cheap Reach
[H6] Ad Tech Briefing: The days of bloat are over, as efficiency drives ad tech’s C-suite exodus
Learn more: Ad Tech Briefing: The days of bloat are over, as efficiency drives ad tech’s C-suite exodus
[H3] Curate Smarter. Scale Confidently
OpenXSelect brings buyers closer to premium supply and makes it easy to control inventory quality across all channels.

[H3] Key benefits
[H3] Stronger Performance, Proven Outcomes
[H4] Stronger Performance, Proven Outcomes
Easily deploy your data and intelligence across channels and formats with real-time bidding solutions. Expand reach and improve advertising performance at the source.
[H3] Faster, Easier, Cost-Effective, and Secure
[H4] Faster, Easier, Cost-Effective, and Secure
Deploy advertising solutions once on sustainable, global infrastructure, then activate on your preferred demand-side platform (DSP) to reduce complexity, lower operational overhead, and accelerate decision-making.
[H3] Better Advertising Solutions
[H4] Better Advertising Solutions
Build your own adtech with access to unique audience, publisher, and supply-side auction data. Train AI models, build agentic workflows, or develop new measurement capabilities.
[H2] OpenXBuild
Real-time advertising solutions and sustainable programmatic infrastructure
[H3] 500B+
Average daily ad requests to shape outcomes*
*Source: Internal OpenX reporting
[H3] 272M+
Individual people addressable through our ID Graph
[H3] 45+
Unique signals per ad request to drive insights
“With OpenXBuild, we can apply our audience enrichment and bidding algorithms directly inside the exchange. By evaluating impressions closer to supply and bidding more selectively, advertisers have seen a 70% reduction in cost-per-conversion on OpenX traffic compared to unshaped SSP inventory.”
Teddy Jawde / SVP, Product Management
[H3] The OpenXBuild Software Suite
[H5] Real-Time Bidstream API
Safely and easily deploy your data and decisioning within OpenX infrastructure for real-time pre-auction audience targeting, smarter bidding, maximizing efficiency, and improved performance.
[H5] Identity Resolution API
Enrich your data assets to increase qualified reach. Match IDs, data, and audiences, reducing risk and data leakage with the largest independent supply-side identity graph, reaching 272 million plus people.
[H5] Auction Insights API
Power measurement and insights. Access privacy-forward log-level data — including people exposures, supply dynamics, and auction results — to power reporting, model training, and campaign optimizations.
[H3] OpenXBuild Partners
These OpenX partners offer custom adtech products and agentic AI solutions that run on OpenXBuild infrastructure
[H3] Build Better Advertising Solutions
Access real-time control over bidding performance, audience reach, and auction insights

[H3] In the News
[H6] ‘It’s landing at a strange time’: Can POSSIBLE shed light on adland’s black boxes?
Learn more: ‘It’s landing at a strange time’: Can POSSIBLE shed light on adland’s black boxes?
[H6] Citing Supply-Side Intel Gains, Buyers Push Past Cheap Reach
Learn more: Citing Supply-Side Intel Gains, Buyers Push Past Cheap Reach
[H6] Ad Tech Briefing: The days of bloat are over, as efficiency drives ad tech’s C-suite exodus
Learn more: Ad Tech Briefing: The days of bloat are over, as efficiency drives ad tech’s C-suite exodus