Ali Demirbaş - Lab
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Cart & Checkout

Trust Badges at the Payment Step A/B Test

Trust badges may reduce hesitation when shoppers enter payment details.

  • Checkout
  • Payment completion rate

Control vs Variant

Absent on one side, present on the other.

Changed
Presence
Page
Checkout
Difference
added

Hypothesis

Add only badges that genuinely apply, while keeping the payment flow, copy and fields unchanged.

How to run this test

Primary metric

Payment completion rate

Compare orders among visitors who start the payment step.

Other metrics

  • Payment-step abandonment rateTrack visitors who leave the payment step without placing an order.
  • Payment error and decline rateTrack technical errors and bank declines in the payment step.
  • Post-purchase cancellation rateCompare cancellations over the same follow-up period in both arms.

What to check before and during the test

  • ChangeAdd a predefined set of trust badges to the variant.
  • Keep constantSet the badge set, placement and format before launch. Keep payment flow, copy and fields the same in both arms.
  • CompletionRead payment completion alongside payment-step abandonment.
  • Measurement limitsDefine acceptable limits for errors, declines and cancellations before the test.
  • Separate testsTest badge count, placement or format separately.

Setup mistakes to avoid

  1. 1Show only certifications the business actually holds.
  2. 2Do not make badges large enough to compete with the CTA.
  3. 3Avoid so many badges that the page feels overly persuasive.
  4. 4Keep the payment provider unchanged during the test.
  5. 5Make sure the badge strip does not cover the CTA when the keyboard opens.