What are view through conversions? They are conversions credited to people who saw an ad, did not click, and later converted on the website. Credit is assigned within a lookback window, and it does not by itself show that the ad caused the sale.
The metric sits alongside the other online advertising metrics, but it answers a narrower question: does an impression without a click deserve any credit? The answer depends on the window, on what counts as a view, and on how much weight the number is given. For a separate approach to judging channel contribution, see what is marketing mix modeling.
How a view-through conversion is recorded
A view-through conversion is recorded when an ad impression is matched to a later website conversion for the same user. The ad itself is never clicked.
According to Cometly’s explanation of view-thru conversions, the process runs in stages:
- Impression served. When someone lands on a webpage displaying the ad, a tiny, invisible 1×1 pixel fires and logs that the ad was shown.
- No click. The person sees the ad but does not interact with it, so no click-through is logged.
- Later visit. The same person returns to the advertiser’s website at a later point and completes a conversion.
- Match and credit. The platform links the earlier impression to the conversion and credits the ad, as long as the conversion falls inside the lookback window.
The matching step relies on cookies. MetaRouter’s overview of view-through attribution notes that tracking behaviour this way requires cookies, and that the method assigns credit to ad impressions rather than clicks. The term post-view conversion describes the same event, and it is most often discussed for display advertising, where banners and video are seen far more often than they are clicked.
Attribution window settings
The attribution window is the period after an impression during which a conversion can still be credited to it. Without a window, any purchase at any later date could be tied to an old impression. MetaRouter states that view-through attribution requires precise lookback windows to be effective.
| Setting | Value | Planning use |
|---|---|---|
| Typical view-through window | Usually up to 30 days after the ad was seen | A reasonable ceiling to compare against when reviewing a platform’s settings. |
| Facebook Ads Manager default | Conversions within 7 days of a click or 1 day of a view | Shows that a view is trusted over a shorter span than a click. |
The typical range comes from Cometly, and the Meta default is described by Jon Loomer’s guide to Facebook view-through attribution.
Windows can also be set by the advertiser. MetaRouter gives an example custom rule in which a person who views an ad and converts on the website within 90 days is credited. That is an example of a custom lookback rule, not a platform default, and a window that long makes it more likely that the person would have bought anyway.
Choose the window to match how long the product takes to consider. A short window keeps the credit close to the exposure. A longer window captures slower decisions but loosens the link between the ad and the sale. Keep the same window when comparing campaigns, or the numbers will not be comparable.
View-through versus click-through conversions
A click-through conversion happens when a user clicks an ad and then converts shortly after. A view-through conversion has no click, so the only evidence of influence is exposure followed by a conversion in the window.
The two behave differently in practice:
- Speed of feedback. MetaRouter points out that click-based attribution lets advertisers see the impact of a campaign immediately, whereas view-through credit arrives later and depends on the lookback window.
- Strength of the signal. A click is a deliberate action. Jon Loomer frames the open question as whether a view-through conversion is as valuable as a click-through conversion, and the working assumption is that it is not.
- What each measures. Cometly says view-thru conversions are mainly used to measure brand awareness, ad recall and top-of-funnel influence, while clicks reflect more direct response.
Reporting matters here. Jon Loomer notes that Facebook removed its compare windows feature with iOS 14+ changes, which took away an easy way to view click and view conversions side by side in Ads Manager. Where a platform still reports the two in separate columns, keep them separate and never add them into one headline figure without saying so. For how Meta lays out its other reporting columns, see facebook ads metrics explained.
Does a view mean the ad caused the sale?
No. A view-through conversion shows that an impression came before a conversion, not that the impression produced it.
Several limits sit behind that answer:
- Exposure is not first exposure. Optizent’s guide to view-through conversions in Google Ads cautions that the metric does not necessarily reflect how many people saw the ad for the first time, so repeat exposure to existing customers can inflate it.
- Intent may already exist. Someone who was going to buy anyway can be served an impression and counted.
- Only the platform can see the link. Jon Loomer observes that Meta is the only party who can tie ad views to conversions, because URL parameters cannot carry a view. The figure is therefore hard to verify independently.
There is a fair case on the other side. Advocates quoted by MetaRouter argue that impressions should be properly credited with conversion actions despite the time lag, and Jon Loomer says you can make the argument that the view contributed to the conversion. The reasonable position is that a view may have contributed, with the strength of that claim depending on the audience, the window and the campaign goal.
Viewability and what counts as a view
A view-through conversion is only as meaningful as the definition of a view behind it. Cometly describes a viewable impression as one where at least 50% of the ad’s pixels are on the screen for at least one continuous second.
Platforms do not all apply that definition identically. Cometly adds that different platforms can sometimes measure viewability in slightly different ways. AgencyAnalytics’ definition of view-through conversions notes that some platforms count an ad as viewed even if it loads below the fold. Under that looser rule, a person may never have scrolled to the ad, yet a later conversion can still be credited to it.
For reporting, this means two campaigns with equal view-through counts are not necessarily equal in evidence. Check how each platform defines a view before comparing them.
Should view-through conversions count in campaign results?
Count them as a secondary, supporting metric, reported separately from click-through conversions. AgencyAnalytics recommends exactly that role for the figure.
The scale is a reason for care. Cometly reports that view-through conversions have been shown to account for up to 35% of total conversions in some Google Ads campaigns. A share that large can change a campaign’s apparent return if it is merged into the main total. AgencyAnalytics also notes a significantly higher number of view-through conversions in retargeting campaigns, where the audience already knows the brand.
A practical approach:
- Report them in their own column. Keep the headline result on clicks or other direct actions.
- Keep the window constant. Compare periods and campaigns under the same setting.
- Read them with exposure data. Optizent advises looking at reach and frequency alongside the metric.
- Discount them in retargeting. Treat high counts there as expected rather than as proof of extra impact.
Frequently asked questions
Is a post-view conversion the same as a view-through conversion?
Yes. Both terms describe a conversion that follows an ad impression without a click. Cometly uses the phrase view-thru conversion for a person who sees an ad, does not click, and later converts on the website.
Why do retargeting campaigns show so many view-through conversions?
Retargeting aims ads at people who already know the brand, and AgencyAnalytics notes a significantly higher number of view-through conversions there than in other display work. Many of those people may have returned without the ad, so the count says little about added impact.
What should be reported next to view-through conversions?
Reach and frequency. Optizent explains that the metric does not show who was exposed for the first time, so exposure measures help show whether the credit comes from new audiences or repeated impressions.
Which campaigns suit view-through reporting best?
Branding campaigns whose goal is awareness. Optizent describes the metric as especially useful there, and Cometly links it to brand awareness, ad recall and top-of-funnel influence.
