Checkout Progress Bar A/B Test Example

Checkout completion rate

Compare orders among visitors who start checkout and see the progress bar.

• Step abandonment rateTrack exits from the address and payment steps separately.
• Checkout completion timeMeasure time from checkout start to order confirmation consistently in both arms.
• Backtracking rateTrack returns to earlier steps; this alone does not prove indecision or confusion.
• Page load timeCheck whether the progress bar affects page load time.

• Progress informationAdd a bar showing completed and remaining steps.
• Keep constantKeep checkout steps, their order, fields and CTAs unchanged.
• Step abandonmentTrack exits from the address and payment steps separately.
• MobileKeep the information readable without covering the main action.
• Separate testsTest checkmarks, explanatory copy or indicator placement separately.

1. 1Reflect the actual checkout flow; do not add steps or hide remaining ones.
2. 2Use step names that are clear to shoppers.
3. 3Do not let the bar take up too much screen space on mobile.
4. 4Keep checkout steps unchanged throughout the test.
5. 5Avoid slow-loading or excessive animation.