Best Seller badges on products: +30.21% revenue per visitor
Dave Diederen added Best Seller badges to products, and the best version lifted revenue per visitor 30.21%. Average order value rose 23.45% and conversion rate 5.47%. Two other badge versions did worse, one of them 10% below control.
- Revenue per visitor (best version): $0.94 to $1.22 (+30.21%), with a 94% probability of beating control. The range ran from -6% to +79%.
- Average order value: $88.09 to $108.74 (+23.45%). Most of the gain came from larger orders.
- Conversion rate: 1.07% to 1.13% (+5.47%). A small change that could easily be noise.
- The other two badge versions: +7.1% and -10% RPV. Badge design mattered, and one version lost money.
The change
Best Seller badge added to top products in the grid
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Products shown without a Best Seller badge.
Variant
A Best Seller badge on selected products. Three badge versions were tested; the post did not show how they differed.
Why it likely won
Our reading of the result, not the practitioner's claim.
- the badge steered shoppers toward proven, likely higher-priced products, which fits the jump in AOV.
- 'Best Seller' is social proof that others already bought the item.
- a clear pick reduces the effort of choosing from many similar products.
Caveats: The test started Jul 29, 2025 and had no end date, with 584 orders across about 53,350 visitors split over four groups, so each group had roughly 150 orders. The confidence range includes a loss, and the gap between badge versions shows design matters.
Who ran it
Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.
View the original post on X
How to run this test on your store
- Hypothesis
- If we add a Best Seller badge to our top products, then revenue per visitor will rise because shoppers lean toward popular items and choose faster.
- Primary metric
- Revenue per visitor
- Guardrails
- Average order value
- Conversion rate
- Sales mix and margin by product
- Who should test it
- Stores with large collections where shoppers face many similar choices and a few products clearly outsell the rest. It may do little for stores with only a handful of products.
Questions
Do Best Seller badges increase sales?
The best badge version here lifted revenue per visitor 30.21%, mostly through bigger orders. Another version lost 10%, so the design and placement need testing.
Do product badges affect average order value?
In this test AOV rose from $88.09 to $108.74 with the winning badge. One likely reason is that it pointed shoppers to higher-value products.
How long should a badge test run?
This one had about 584 orders across four groups when shared, which is thin. Run until each group has enough orders for a narrow confidence range.
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@oliverkenyon@oliverkenyon
@DaveDiederen@DaveDiederen@DaveDiederen@DaveDiederen