Best Seller badges: +7.21% revenue per visitor

WinnerCollection page · 2025-11-14

Adding Best Seller badges to products lifted revenue per visitor by 7.21% and conversion rate by 7.51%. Dave Diederen ran the test, and the winning badge version is now live on the site.

+7.21% revenue per visitor
  • Revenue per visitor: +7.21%, estimated at about £31,496 more per month.
  • Conversion rate: +7.51%, estimated at about 691 more orders per month.
  • Average order value: no change. The gain came from more people buying.
  • Projected annual impact: about £377,952 in revenue.

The change

Control (A)
header
banner
filters
product card
product card
collection grid
Variant (B)
header
banner
filters
Best SellerNEW
product card
product card
collection grid

Variant adds a Best Seller badge to top products

Simplified mockup drawn by LiftArchive from the shared screenshots.

Control

Products appeared on the collection page without a Best Seller badge.

Variant

Selected products carried a Best Seller badge. The exact design and placement were not shown.

Why it likely won

Our reading of the result, not the practitioner's claim.

Caveats: Only a summary message was shared, with no sample size, duration, confidence ranges or screenshot of the badge. The monthly and annual figures are estimates from the testing tool.

Who ran it

Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.

How to run this test on your store

Hypothesis
If we add Best Seller badges to our top products, then more visitors will buy, because social proof makes it easier to choose.
Primary metric
Revenue per visitor
Guardrails
  • Average order value
  • Sales mix across products
  • Return rate on badged items
Who should test it
Stores with large collections where shoppers have to choose among many similar items. It may do little for stores with a handful of products, or if every item gets a badge.

Questions

Do Best Seller badges increase conversions?

In this test they lifted conversion rate by 7.51% and revenue per visitor by 7.21%, with no change in order value.

Which products should get a Best Seller badge?

The post doesn't say how products were chosen. Use real sales data so the badge stays honest.

Do badges raise average order value?

Not here. AOV didn't change, so the gain came from more visitors buying.

Similar tests

Bestseller badges & product labels tests All collection page tests