View-through conversions: credit for impressions
A view-through conversion credits an impression a user was served but did not click, when they later convert within an impression window. It tries to value awareness that does not get clicked, but it is among the easiest credits to over-count, because seeing is not the same as being influenced.
What this means
If a user is served an impression, does not click, but converts within the impression window, the platform may log a view-through conversion. It is an attempt to credit exposure that influenced without a click — the opposite end of the spectrum from a click-through conversion.
Why it over-counts so easily
An impression can be below the fold, unviewed, or simply ignored, yet still be eligible for credit. Wide impression windows compound this by catching conversions that would have happened regardless. Privacy and viewability limits make the underlying data noisier still.
Keep view-through and click-through conversions separate, prefer short impression windows, and lean on incrementality to test whether the exposure mattered at all.
- Credits an unclicked impression before a conversion
- Inflated by wide impression windows and non-viewable ads
- Not comparable to click-through conversions
How it appears in analytics and logs
A surge in view-through conversions often reflects a wide impression window or heavy ad serving, not necessarily more influence on real decisions.
Diagnostic use case
Treat view-through conversions as a soft signal of upper-funnel exposure, not as clicks, and scrutinise the impression window before trusting the totals.
What WebmasterID can help detect
WebmasterID focuses on first-party, on-site touchpoints and labels confidence, so impression-based credit is never silently blended into measured on-site behaviour.
Common mistakes
- Blending view-through and click-through conversions.
- Using a wide impression window and trusting the totals.
- Assuming an impression served was an impression seen.
Privacy and accuracy notes
View-through measurement depends on ad-platform impression logging and is increasingly constrained by privacy controls. Coarse, aggregate reporting is the privacy-safer posture. Educational, not legal advice.
Related pages
- Lookback and conversion windows explained
A lookback (or conversion) window is the period before a conversion in which earlier touchpoints are eligible for credit. Touches outside the window are ignored entirely. Because every attribution model only sees touches inside this window, its length quietly governs which channels can ever receive credit.
- Incrementality testing: what attribution cannot tell you
Incrementality testing measures the lift a channel actually causes by withholding it from a control group and comparing outcomes. It answers the question every attribution model dodges: would this conversion have happened anyway? It is causal where attribution is merely correlational, but it requires deliberate experiment design.
- Assisted conversions: crediting the supporting cast
An assisted conversion is one where a channel participated in the path but was not the closing touch. The assisted-conversions view is a corrective to last-click: it reveals the supporting channels that last-click hides. It is a count of participation, not a clean measure of incremental contribution.
- Attribution analytics
Keep click and view credit clearly separated.
Sources and verification notes
Last reviewed 2026-06-24. Facts are checked against primary/official sources where available; uncertain specifics are marked “Data not yet verified” rather than guessed.