Netflix Expands Ads Suite with Conversion API, Amazon and Yahoo Data, and Lumen Attention Measurement

Netflix made its most aggressive advertising infrastructure push yet on March 4, 2026, announcing a wave of new measurement, targeting, and attribution capabilities for its Ads Suite. The package includes a proprietary Conversion API, audience integrations with Amazon DSP and Yahoo DSP, and an attention measurement partnership with Lumen Research. Taken together, the updates signal that Netflix is no longer just selling ad impressions — it's building the measurement stack advertisers need to justify serious spend.

The Conversion API

The headline feature is Netflix's own Conversion API (CAPI), a server-to-server attribution tool that lets advertisers connect their marketing data — conversions, website activity, purchase events — directly to Netflix's ad platform for real-time campaign optimization.

Netflix piloted the CAPI with Tinuiti, the largest independent full-funnel agency in the US. The results were significant: campaigns outperformed benchmarks by more than 75% across financial services, ed tech, and retail clients. The CAPI is now available to advertisers following the pilot.

The move follows a broader industry trend. As AdExchanger noted, Netflix is embracing the "CAPI trend" that Meta, Google, TikTok, and Snap have all adopted — replacing pixel-based tracking with server-side data connections that are more durable in a privacy-constrained environment. For CTV specifically, where there are no browser cookies or pixels to fire, server-to-server attribution is the only viable approach.

Amazon and Yahoo DSP Integrations

Starting in Q2 2026 in the United States, advertisers will be able to leverage Amazon Audiences when buying Netflix inventory programmatically through Amazon DSP. The integration draws on trillions of Amazon's proprietary shopping, streaming, and browsing signals to build audience segments based on lifestyle, interests, and purchasing behavior.

Separately, Netflix activated Yahoo DSP audiences built from hundreds of millions of Yahoo's interest, behavioral, purchase, and life stage signals. The Yahoo integration uses deterministic matching from logged-in users, offering higher-confidence identity resolution than probabilistic approaches.

Both integrations represent a philosophical shift for Netflix. The company initially insisted on keeping its ad business entirely in-house, but the reality of scaling a $3 billion ad revenue target — roughly double its 2025 ad revenue of $1.5 billion — requires the reach and sophistication of established programmatic infrastructure.

Lumen Attention Measurement

In a separate but complementary announcement, Lumen Research launched an attention measurement solution for Netflix advertisers. The integration uses Lumen's eye-tracking-based machine learning models to measure how much attention ads actually capture across Netflix's CTV, desktop, and mobile inventory.

The solution is initially available to advertisers in the UK, Germany, France, Italy, and Spain for measuring both local and global campaigns. Lumen CEO Mike Follett said the partnership allows clients to "access Netflix data for attention measurement, ultimately empowering them to make smarter investment decisions and drive greater effectiveness across their media mix."

This is particularly significant in the context of the MRC and IAB attention measurement guidelines released in November 2025. Netflix adopting third-party attention measurement — rather than just reporting its own engagement metrics — gives buyers an independent signal to evaluate CTV ad quality on the platform.

The Competitive Landscape

Netflix's measurement maturation is happening against a backdrop of intensifying CTV competition. Disney has been building out its Compass measurement portal with AI-powered brand analytics. Amazon has the advantage of its own retail data for closed-loop attribution. YouTube leverages Google's full measurement stack. For Netflix, which lacks its own commerce data or search signals, the path to measurement credibility runs through partnerships — and this batch of announcements shows the company is executing on that strategy.

What Advertisers Should Do

For brands already spending on Netflix or evaluating CTV allocations, three actions follow from these announcements. First, test the Conversion API — the Tinuiti pilot results suggest meaningful performance gains from server-side attribution on CTV. Second, evaluate the Amazon and Yahoo DSP integrations when they launch in Q2, particularly if your media plan already runs through those platforms. Third, if you're buying Netflix in European markets, activate Lumen's attention measurement to get an independent read on ad quality alongside Netflix's own reporting.

Netflix's ad business is still young, but the measurement infrastructure is catching up fast.