Sticky Bottom Add to Cart Bar
Discover how optimizing mobile navigation and load speed led to an 8.2% drop in bounce rate and improved user engagement.
Metric
Conversion rate
Lift change
+0.0%
Control
Variation
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
Detailed breakdown
Add-to-Cart Rate
+7.6%
Click-Through Rate
+5.1%
Conversion Rate
+2.1%
Bounce Rate
-8.2%
Average Order Value
-5.2%
Revenue
-5.18%
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.
