Quality seal on product pages: +21.8% cart value
Test run byDRIP AgencyCRO agency
Commentary byLiftArchiveOur analysis, not theirsAdding a quality seal to selected product pages lifted cart value by 21.8% for Mofakult, an online store for moped spare parts.
DRIP Agency ran the test and published it as a case study on its German site.
Only the headline figure was shared, so the exact metric is unclear.
- Cart value: +21.8% against pages without the seal.
- The source does not say if this means average order value or cart value per session.
- Significance, sample size and which pages were included were not shared.
The change
The variant adds a quality seal to selected product pages.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Selected product pages showed no quality seal.
Variant
A quality seal was added to those same selected product pages.
Why it likely won
Our reading of the result, not the practitioner's claim.
- Buyers of spare parts worry about fit and build quality. A seal gives a quick signal that the part is reliable.
- When shoppers trust the part, they may add more parts or pick higher-priced ones, which lifts cart value.
- The seal ran only on chosen pages, likely where quality doubts were strongest. That is our guess.
Caveats: Facts come from DRIP's German case study, which gives only a headline figure. It is unclear whether the metric is average order value or cart value per session, and significance and sample size were not shared.
Who ran it
DRIP Agency ran this test for Mofakult and published the results (DRIP Agency case study). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on DRIP Agency →
How to run this test on your store
- Hypothesis
- If we add a quality seal to product pages where quality is a worry, then cart value will rise because shoppers trust the parts enough to buy more.
- Primary metric
- Average order value
- Guardrails
- Conversion rate
- Revenue per visitor
- Return rate
- Who should test it
- Stores selling parts, tools or products where build quality is hard to judge online. Only use a seal you can back up. It is less likely to help brands that shoppers already know and trust.
Questions
Do quality badges increase sales?
They can when quality is a real worry.
Mofakult saw cart value rise 21.8% after adding a quality seal to selected product pages.
Where should a quality seal go on a product page?
Near the product title, price or buy button, where shoppers decide.
The source did not show exact placement, so test what fits your layout.
Can I make up my own quality seal?
Only if it reflects a real standard you can explain, such as testing or checks you do.
A seal that means nothing can damage trust.
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