# Sticky add-to-cart button on product pages: +16.27% conversion rate

- Outcome: Won
- Page type: Product page (Ecommerce)
- Elements: Sticky add-to-cart bars
- Test run by: [Blend Commerce](https://liftarchive.com/practitioners/blend-commerce/)
- Commentary by: LiftArchive (our analysis, not theirs)
- Original source: https://blendcommerce.com/blogs/ab-tests-shopify/adding-a-sticky-cta-to-the-product-detail-page
- Page: https://liftarchive.com/test/apparel-brand-sticky-atc-pdp/

Adding 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%.

## Result

**+16.27% conversion rate**

- 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.

## 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)

- 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.

## How to run this test

- 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
- Guardrail: Average order value
- Guardrail: Bounce rate
- Guardrail: 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.

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Credit: Blend Commerce ran this test and owns the result. Summary and commentary by LiftArchive (https://liftarchive.com/test/apparel-brand-sticky-atc-pdp/).
Usage: Free to use, quote and build on, with credit and a link: name the practitioner or organization that ran the test and link to its LiftArchive page. The results belong to the practitioners who ran and shared them; the summaries and commentary are LiftArchive's.