Sticky add-to-cart button on product pages: +16.27% conversion rate
Test run byBlend CommerceCRO agency
Commentary byLiftArchiveOur analysis, not theirsAdding a sticky add-to-cart button to an apparel brand's product pages lifted conversion rate by 16.27%.
Blend Commerce ran this A/B test. Revenue per user rose 26.31% and average order value 6.97%.
- Conversion rate: +16.27%.
- Revenue per user: +26.31%.
- Average order value: +6.97%.
- More visitors clicked through to checkout and used the standard button, and bounce rate fell. Exact figures were not shared.
The change
The variant adds a sticky add-to-cart button that follows the shopper down the page.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Product pages had a standard Add to Cart button only. On some less popular pages, just 8.74% of users reached it.
Variant
A sticky add-to-cart button stayed on screen as shoppers browsed the product page.
Why it likely won
Our reading of the result, not the practitioner's claim.
- When few visitors reach the main button, keeping one always in view removes a scroll step.
- A visible buy option is a constant reminder that the product is ready to purchase.
- Blend had seen similar gains with sticky CTAs for other brands, which supported the idea.
Caveats: The test ran for two weeks. Sample size, device split and confidence were not shared.
Who ran it
Blend Commerce ran this test for a apparel brand and published the results (Blend Commerce A/B test). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Blend Commerce →
How to run this test on your store
- Hypothesis
- If we add a sticky add-to-cart button to product pages, then more shoppers will buy because the purchase option stays in view as they scroll.
- Primary metric
- Product page conversion rate
- Guardrails
- Average order value
- Bounce rate
- Return rate
- Who should test it
- Stores where analytics show few visitors reach the main Add to Cart button. Less useful if your button is already above the fold and widely used.
Questions
Does a sticky add-to-cart button increase sales?
In this test it lifted conversion rate by 16.27% and revenue per user by 26.31%.
Results depend on how many shoppers reach the main button.
How do I know if I need a sticky add to cart?
Check how many visitors reach your Add to Cart button.
Here some pages saw only 8.74% get that far.
Does a sticky button annoy shoppers?
Not in this test. Bounce rate fell and order value rose.
Similar tests
@oliverkenyon
@DaveDiederen@DaveDiederen
VastaVastaBlend Commerce