Condensed buy box above the fold: +18.8% conversion rate
Test run byVastaCRO agency
Commentary byLiftArchiveOur analysis, not theirsPutting a condensed buy box (price, bundle selector, trust badges and one Buy Now button) at the top of a landing page lifted conversion rate by 18.8%.
Vasta ran this test for an anti-aging supplement brand.
Several changes shipped together, so the lift belongs to the whole new page, not to one element.
- Conversion rate: +18.8%, a weighted average across two separate tests, reported at 95% confidence.
- The agency put the gain at 741 extra sales and about $77,805 in extra revenue a month.
- Results for each traffic segment on its own were not shared.
The change
The buy box moves from deep in the page into the hero, with proof beside it.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
A long-form landing page where the purchase step sat far down and ran over several steps. Shoppers still comparing options and shoppers ready to buy saw the same page.
Variant
A lighter page with the buy box in the hero: price, bundle dropdown, trust badges and a single Buy Now button, with no modal cart. It also had headlines tuned to each audience, a sticky mobile button and proof placed beside the offer.
Why it likely won
Our reading of the result, not the practitioner's claim.
- Shoppers who arrive ready to buy can act in seconds instead of scrolling past long copy.
- Picking a bundle inside the buy box removes a jump to another part of the page.
- Headlines matched to intent (proof for browsers, scarcity for ready buyers) may speak more directly to each group.
- Proof next to the button answers doubts at the moment of decision.
Caveats: Five changes shipped together, so no single one can take the credit. The +18.8% is a weighted average of two tests on different traffic segments; sample size and duration were not shared.
Who ran it
Vasta ran this test for an anti-aging supplement brand and published the results (Vasta case study). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Vasta →
How to run this test on your store
- Hypothesis
- If we move price, bundle choice and one buy button into the hero of our landing page, then conversion rate will rise because ready buyers can act without scrolling.
- Primary metric
- Conversion rate, reported separately for warm and ready-to-buy traffic
- Guardrails
- Average order value
- Bundle take rate
- Refund rate
- Who should test it
- Single-product or few-product brands sending paid traffic to long landing pages. If your visitors are mostly cold and need the story first, a buy box at the top may push too early.
Questions
Should the buy box be above the fold on a landing page?
For visitors who already want to buy, it often helps because they can act right away.
In this bundled test, a hero buy box was part of an 18.8% lift.
Should warm and ready-to-buy traffic see different pages?
It can pay to test them separately. Vasta ran this as two tests, one per traffic segment, and tuned the headline for each.
Does a sticky mobile buy button help?
It keeps the action in reach on long pages.
Here it shipped with other changes, so its own effect is unknown.
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