PLAN
CTV measurement explained: from delivery to incremental lift
QUICK ANSWER
Streaming TV measurement runs on three levels. Delivery shows the ads ran; attribution ties exposure to visits or sales in a time window; incrementality compares exposed and unexposed groups to estimate what the ads caused. Decide which level you need before you choose a platform, because platforms describe different levels on their pages.
By The Tuning Desk · CTV Ad Finder · Published 2026-10-18
Built only from each platform's own public pages. We opened no accounts, bought no media and held no demos or vendor interviews.
What do delivery metrics tell you?
Impressions, reach, frequency and video completion rate (VCR) show that ads ran and how often households saw them. They do not show whether the ads changed behaviour. Every platform reports delivery; it is the floor, not the goal, for performance buyers.
How does CTV attribution work?
Attribution connects an ad exposure on a TV to a later action, such as a site visit or purchase, usually by matching the household that saw the ad with devices that later act. A pixel on your site logs those actions, and the attribution window decides how many hours or days after the ad a logged action is still credited. Shorter windows credit fewer actions; longer windows credit more but include more actions that would have happened anyway. Ask each platform how it matches households and which window it uses by default.
What is incrementality, and why does it matter?
Incrementality is the share of results the ads caused, rather than results that would have happened without them. It is estimated by comparing a group that could see the ads with a similar group that could not. A campaign can show strong attributed results and low incrementality if it mostly reached people who were going to buy anyway.
What is a holdout test?
In a holdout test, part of the eligible audience is deliberately not shown the ads. The difference in outcomes between the exposed group and the holdout group estimates lift. The holdout must be chosen before the campaign and kept clean, and it costs you the reach you hold back.
What is a geo test?
A geo test, or geo holdout, runs ads in some regions and not in comparable others, then compares outcomes. It works without user-level tracking and suits channels like TV, but needs enough regions, enough time and enough budget to separate the effect from normal regional noise.
Where do brand lift and marketing mix models fit?
Brand lift studies survey exposed and unexposed people about awareness or intent. Marketing mix models (MMM) use historical spend and sales across all channels to estimate each channel's contribution over months. Both answer different questions from campaign-level attribution and are often run by third-party measurement firms.
Why use third-party measurement?
A platform measuring its own results is marking its own homework. Named third-party measurement partners, such as attribution, incrementality or MMM providers, let you read results with a method you already trust and compare TV with other channels on the same basis.
Which platforms describe each level on their pages?
Scroll the table sideways
| Level | Platforms that state it | Platforms that partly state it |
|---|---|---|
| Attribution to visits or sales | MNTN, StackAdapt, Tatari, tvScientific, Vibe | The Trade Desk, Universal Ads |
| Incrementality or lift testing | Tatari, tvScientific, Vibe | StackAdapt |
| Named measurement partners | MNTN, Vibe | The Trade Desk, tvScientific, Universal Ads |
| Brand-safety partner named | MNTN | The Trade Desk |