Collection page banner with social proof: up to +6% conversion
Test run byDave DiederenSyntra Labs
Commentary byLiftArchiveOur analysis, not theirsAdding an above-the-fold banner to collection pages lifted conversion by up to 6% and revenue per visitor by up to 6.4%. Dave Diederen shared results from two stores using a 4-part banner: social proof, an offer with countdown or a short description, and category filters. Each test had a second variant that won by much less.
- Store 1, "With New Banner": +5.97% conversion (11.0% to 11.6%), +6.39% revenue per visitor (A$10.48 to A$11.15), +6.13% profit per visitor, and no change in order value. Estimated at +A$38,859 a month.
- Store 1, second banner version: only +1.2% conversion.
- Store 2, "Testimonial": +4.86% conversion (1.41% to 1.48%), +3.41% revenue per visitor and +3.77% profit per visitor. Estimated at +$35,742 a month.
- Store 2 average order value fell 1.39% with the testimonial, a small negative to watch. The "Benefits" version gained only +1.2% conversion.
- Neither winner was conclusive: the chance of beating control was 92% and 86%.
The change
A 4-part banner (social proof, offer or description, filters) is added above the product grid.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The collection page had no dedicated banner at the top. Products started with little context or reassurance above them.
Variant
An above-the-fold banner was added with social proof, such as reviews or units sold. It also had an offer with a countdown during promotions, or a short collection description otherwise, plus category filters.
Why it likely won
Our reading of the result, not the practitioner's claim.
- social proof near the top builds trust before shoppers start scrolling the grid.
- an offer with a deadline gives people a reason to act now during a promotion.
- category filters in the banner help shoppers on big catalogues narrow down fast.
- the testimonial beat the benefits version in store 2, which hints that proof from other buyers works better than claims from the brand.
Caveats: These are two separate stores, and the screenshots do not show the banners themselves, so we can't tell which parts each variant included. Sample sizes and test lengths were not shared, and both confidence ranges cross zero.
Who ran it
Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.
View the original post on X
How to run this test on your store
- Hypothesis
- If we add an above-the-fold collection banner with social proof, an offer or description, and category filters, then conversion rate will rise because shoppers gain trust and find products faster.
- Primary metric
- Revenue per visitor
- Guardrails
- Average order value
- Product clicks from the collection page
- Profit per visitor
- Who should test it
- Stores where collection pages get lots of traffic and have never been worked on, especially multi-category catalogues. It may hurt if the banner pushes products too far down on mobile.
Questions
What should go at the top of a collection page?
Dave Diederen's banner formula uses social proof, an offer with a countdown or a short description, and category filters. In their tests it lifted conversion by up to 6%.
Do testimonials work on collection pages?
In one store, a testimonial banner beat a benefits banner and lifted conversion 4.86%. Average order value dipped 1.39%, though.
Should I add a countdown timer to collection pages?
Only when a real promotion is running. When there is no sale, the formula uses a short collection description in its place.
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@oliverkenyon@oliverkenyon@DaveDiederen@DaveDiederen@DaveDiederen@DaveDiederen