Star ratings on collection cards: +$0.17 revenue per session
Test run byOliver KenyonConversionwise
Commentary byLiftArchiveOur analysis, not theirsAdding star ratings, best-seller tags and short review snippets to product cards on the collection page raised revenue per session by $0.17. Oliver Kenyon ran this test and estimates the gain at $7,280 a month. The rest of the page stayed the same.
- Revenue per session: +$0.17. Each visit earned a little more on average.
- Monthly revenue: +$7,280, based on the practitioner's own estimate.
- Yearly revenue: +$87,360. This is a forecast from the monthly figure, not a measured year.
The change
Star ratings and review counts added to every product card
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Product cards on the collection page showed a sale tag, image, product name, price and an add-to-cart button. There was no review information on the cards.
Variant
Each card gained a star rating with a review count under the product name. The post says best-seller tags and review snippets were added too, though the mockup only shows the stars.
Why it likely won
Our reading of the result, not the practitioner's claim.
- shoppers often judge products on the collection page, so showing proof there helps them shortlist faster.
- a review count tells people a product has been bought and liked before, which lowers the risk of clicking through.
- the change added information without moving any buttons or prices, so it had little room to cause harm.
Caveats: Sample size, test duration and conversion rate were not shared. The yearly figure is a projection.
Who ran it
Oliver Kenyon (@oliverkenyon) 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 show star ratings and review counts on collection page product cards, then more visitors will click through and buy because they can see proof before choosing a product.
- Primary metric
- Revenue per session
- Guardrails
- Click-through rate from collection to product page
- Average order value
- Add-to-cart rate
- Who should test it
- Stores with a healthy number of reviews on most products. It probably won't help if many products have few or no reviews, since empty or low counts can hurt.
Questions
Should I show star ratings on collection pages?
In this test, adding ratings to collection cards lifted revenue per session by $0.17. It is worth testing if most of your products have a solid number of reviews.
What social proof works on product cards?
This test used star ratings with a review count, plus best-seller tags and short review snippets according to the post. The ratings were placed right under the product name.
Do review stars on product cards slow shoppers down?
There was no sign of that here. The extra line of proof came with a revenue gain, though click-through and add-to-cart data were not shared.
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