CTV Transparency: Why App-Level Signals Are Not Enough

In the CTV space, "premium" should describe the on-screen content. But it often describes how the inventory was packaged and sold. As budgets moved from linear into programmatic, program-level signals – genre, show title, content rating – were frequently missing or inconsistent.

To buy at scale, the industry leaned on what was available: app names, Deal IDs, and surface-level delivery metrics. While these proxies make CTV easier to transact, they also hide the differences among environments. A single CTV app can carry scripted content alongside ambient video, screensavers, or mobile games adapted for TV platforms. Meanwhile, a Deal ID can bundle all of that under one label.

Peer39's data show that only about one-third of CTV bid requests include any genre data at all, and much of what's there is shallow or inaccurate. Without reliable content signals, buyers are forced to trust packaging without insight into what's actually happening on screens.

Worse, because surface metrics like completion rate remain strong regardless of content type, risk is obscured within standard reporting. Across the open exchange, roughly 25.2% of CTV bid requests qualify as Fake CTV.

None of this is visible at the app level. So the question is: how do you test whether your CTV supply is what you think it is?

How to Audit Your CTV Transparency

Before expanding spend or adding new supply paths, buyers can pressure-test their CTV environments using three questions to surface app-level reporting gaps.

1. Can I see the actual program or content my ads appeared in?

If post-buy reporting shows app names but not show titles, genres, or episode-level detail, you're looking at a label, not the content. A buyer who can't answer this question can only confirm that delivery occurred and not evaluate whether a placement was worth the spend.

2. Can I verify the channel or service, not just the app name?

Some apps carry a mix of professionally produced content and filler; others package entirely different programming tiers depending on the deal. If you can't independently verify the channel behind the app, you're trusting a label.

3. Can I confirm impressions started on a TV screen?

In environments where content signals are missing, "CTV" inventory can include mobile, tablet, or desktop delivery that technically qualifies under platform definitions but doesn't reflect the living room experience buyers expect.

When two or more of your answers are "no," you're not buying with incomplete data. You're buying blind.

Buying CTV Without Program-Level Data? Here Is What to Do

If you fail the CTV transparency audit, there's no need to pull spend overnight. Instead, start building in checks that will surface risk before it scales.

Start with reporting. Pull a raw placement report and look beyond app names. Flag any line items where program, genre, or screen type can't be identified. If a meaningful share of impressions lacks these data points, supply quality is being assumed rather than measured. This takes minutes and costs nothing.

Next, isolate and compare. Split and run the same campaign across two groups: supply paths where program and genre data are available, and paths where they're not. If both groups post similar completion rates but the signal-poor group shows weaker site visit rates, lower brand lift, or can't explain what content actually ran, budget may be disappearing without a trace.

Then, tighten pre-bid controls. Rather than relying on deal structure or app-level inclusion lists to define quality, apply authenticated signal-based categories before bidding. This shifts the definition of "premium" from a packaging decision back to a content decision.

Finally, hold partners accountable for signal availability. If a publisher, SSP, or DSP can't provide program-level transparency, that's a constraint worth naming explicitly. Buyers who ask "Can I see the show?" and "Can I verify the channel?" as part of vendor conversations will quickly learn which paths support real CTV transparency and which rely on assumptions.

How Authenticated CTV Signals Improve Campaign Performance

When program-level signals are present and verified, Peer39's data shows that applying authenticated signals reduces Fake CTV exposure from 25.2% of open exchange bid requests to just over 2%, without sacrificing scale.

The inventory that remains mirrors what a linear buyer would recognize: scripted programming, news, sports, and entertainment running on TV screens. Quality stops being an assumption built into the deal structure and becomes something buyers can observe, measure, and act on.

The feedback loop that made linear defensible and that app-level CTV reporting largely broke, works again.

The data behind these benchmarks, and a closer look at how authenticated CTV signals compare to open exchange delivery, is available in our full report, "How CTV Transparency Is Dragging Down Performance."