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Sticky Bottom Add to Cart Bar

The mobile version of the website was adjusted to reduce the bounce rate. Learn how these changes impacted user engagement and conversion metrics.

Goal
Conversion rate
Result
+0.0% Conversion rate
Category
Product Page (PDP)
Outcome
Inconclusive
Before
Sticky Bottom Add to Cart Bar (before)
After
Sticky Bottom Add to Cart Bar (after)

IF we introduce a top sticky Add to Cart bar with a size selector and preselection, THEN the add to cart rate will increase on PDPs, BECAUSE users can complete the purchase flow faster without needing to scroll back up or select sizes manually.

What We Changed

Added the sticky add-to-cart bar with:

  • Size selector dropdown (persistent in sticky bar)
  • Color selector dropdown
  • "Find my size" link for guidance

The Results

We dig through every data source to map what's actually broken. By the end, there's no confusion.

+5.6%

Click-through rate change

+4.5%

Change in amount of clicks

+3.8%

Add-to-cart rate change

Key Learnings

  • Add to cart increased proving our hypothesis about the bar.
  • The persistent add-to-cart encouraged quicker purchasing decisions by keeping critical CTAs within constant reach.
  • Revenue decreased due to lower average order values.

Detailed results breakdown

Add-to-cart rate change

+3.8%

Average order value

-7.4%

Click-through rate change

+5.6%

Lift in conversion rate

+0.0%

Change in revenue per visitor

-8.0%


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30,000+ Monthly sessions.
Minimum traffic needed to run statistically significant tests.

Running on Shopify or Shopify Plus.
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Investing in paid traffic.
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Ready to invest in systematic CRO.
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Why free?

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Our bet

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