Talk to a humanSelected product cards on collection pages got a "selling fast" badge to add urgency. See how 54,098 visitors responded over 34 days.
A Selling Fast Badge on Product Cards Shows a 5.9% Conversion Rate Lift
Goal
Conversion rate
Result
+5.9% Conversion rate
Category
Collection Page (PLP)
Outcome
Positive signal
Before
After
If we show an urgency badge on selected product cards, then more shoppers will click through and buy because the fear of missing out pushes them to act before the item is gone.
What We Changed
- Added a "selling fast" badge to the product cards of selected products.
- Made the badge easy to switch on per product, to push older stock or current bestsellers.
The Results
How the new version compared with the original, across all devices.
+5.9%
Conversion rate
+5.2%
Revenue per visitor
+5.8%
Orders
Key Learnings
- Conversion rate rose 5.9% and orders 5.8%, with a 94.2% probability that the variant beats the original.
- The result didn't reach significance, so treat it as a strong signal, not proof.
- Desktop responded most: conversion rate rose 8.3% and revenue per visitor 15.1%.
- On mobile, average order value fell 7.2%, so revenue per visitor dipped 3.8% despite more orders.
Detailed results breakdown
Conversion rate
+5.9%
Revenue per visitor
+5.2%
Orders
+5.8%
Average order value
-0.6%
Free Trial
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Who qualifies?
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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Other experiments we've run
Search & Navigation
Loss Prevented
Reverting to the Previous Mobile Navigation Cuts Conversion Rate 5.7%
After a successful desktop navigation test, the mobile menu went back to its earlier, category-focused layout without account links. The change hurt revenue, and testing showed the cost.
-5.7% Conversion rate
Product Page (PDP)
Positive signal
A Simplified Size Finder Shows a 33.1% Conversion Rate Lift
The "Find Your Size" tool lost its long instructions and became a single input that returns a size instantly. See how 20,402 visitors responded over 21 days.
+33.1% Conversion rate
Other
Winner
Best-Selling Collections on the 404 Page Lift Conversion Rate 6.8%
Visitors who hit a broken link saw the store's most popular collections instead of a dead end. See how the change affected orders and order value.
+6.8% Conversion rate