The trust check that hands your sale to search

A shopper who stops to check whether your store is real does not vanish. They come back through a search or by typing your address, and last-click attribution gives the sale to the return trip. The ad that started it gets little or nothing.

A recent comedy video on YouTube sets its creator a challenge: find twenty items on twenty different dropshipping stores (video). It mocks AI product photos, broken translations and scammy design, uses reverse image search to hop from store to store, and ends by telling viewers to be careful where they spend money online. It is a joke with a real habit underneath. Shoppers who have met stores like these have every reason to check a new brand before they trust it.

The detour, step by step

1. A shopper sees your ad on social or video, taps through and likes the product.
2. They do not buy yet. Your brand is new to them, and so is your site.
3. They leave to check. They search your brand name next to words like reviews or legit, look you up on social, or reverse image search a product photo to see where else it is sold.
4. They come back through your organic search result, a branded search ad, or by typing your address, and buy.

On last-click attribution, that order belongs to organic search, paid search or direct. The ad that created the interest gets nothing, and even a model that spreads credit can only share it among the touchpoints it tracked.

Step three has a second ending. If the reverse image search turns up the same product cheaper somewhere else, the detour ends at another store. Your ad paid for their sale, and your report says paid social does not convert.

What it does to your numbers

Where the detour shows up:

• Paid social and video look weak on last click, most of all for first-time buyers.
• Organic search and direct traffic look strong, and they rise a few days after paid social spend rises.
• A branded search campaign, if you run one, collects the returning clicks and reports each of them as its own conversion.

Nothing in that last report tells you the shopper arrived already decided, and nobody on the other side has a reason to point it out. The search platform is paid per click either way.

How to tell whether it is happening to you

Four checks. The first three use data you already have.

1. Read the paths, not the last touch. GA4's key event attribution paths report, in the Advertising section, shows the channel sequence behind each key event, up to 20 touchpoints long, with Days to key event and Touchpoints to key event alongside (Google's help page). Export it. Count the purchase paths where paid social or video comes early and organic search or direct comes last, and set that count next to the purchases paid social gets on last click.
2. Read the searches. In Search Console's Performance report, group by query (Google's help page) and look for your brand name next to words such as reviews, legit, scam, real or discount code. Put their weekly impressions next to your weekly paid social spend. If they move together, your ads are sending people to check you.
3. Read the lag between channels. Put weekly paid social spend next to weekly branded search clicks and direct sessions. A rise in spend followed a few days later by a rise in the other two is the detour showing up in aggregate.
4. Ask where they first heard of you. A one-question survey after purchase catches first touches the click trail lost, including the ad seen on one device and the purchase made on another. Answers are self-reported and imperfect, so use them as a cross-check on the paths report rather than a replacement. The post-purchase survey guide covers the wording.

None of the four proves the ads caused the searches. Word of mouth, email and press lift branded search too. What the checks tell you is whether the detour is big enough to be worth a test.

What to test

Two tests, in order of cost:

1. Turn the ads off somewhere. Pause paid social in one region, or for a fixed period, and watch total orders, branded search and direct in that region, not only paid social's own conversions. If the other channels fall with the ads off, the ads were feeding them. Cut a channel the right way: run the holdout first covers the design, and the branded search incrementality test is the same logic seen from the search side.
2. Shorten the detour. Put the proof a cautious shopper goes looking for on the page your ad lands on: delivery times, the returns policy, a real company name and address, reviews with dates. Split visitors between the current page and the new one, and compare the purchase rate for visitors arriving from paid social, plus how many of them come back within a week.

Rule of thumb: judge paid social on total orders with it on versus off, never on the orders it closes itself. The customer journey that matters is the one that includes the detour.

Where a read fits

Later, if you want the paths read for every channel at once, a causal attribution read such as Causality Engine's takes the same GA4 Attribution paths export and shows what each channel caused next to what last-click gave it. The first finding, how many days people who saw two or more channels take to convert, is free at /start and computed in your browser. The full read is €99 once per upload, excluding VAT.

Related answers

• Multi-touch vs last click: why the numbers disagree
• Self-attribution bias: why platforms overclaim
• Is your branded search actually incremental?
• Incrementality testing, explained
• Machine-translated store pages: test what they cost