Delivery-date tag next to add to cart: +3.82% conversion rate
Test run byVastaCRO agency
Commentary byLiftArchiveOur analysis, not theirsShowing a dynamic estimated delivery date next to the add-to-cart button lifted conversion rate by 3.82% and revenue per visitor by 5.69%.
Vasta ran this test for TryAuri, a supplements brand, and published it as a Vasta case study. Price, traffic and creative did not change.
- Conversion rate: +3.82% at 95% confidence. A modest but real lift from one small element.
- Revenue per visitor: +5.69%. Revenue rose a little faster than orders.
- Vasta reports about $12,300 in added monthly revenue. This is the agency's own figure.
The change
A vague shipping promise is replaced by a specific delivery date beside the button.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The product page said "Fast Shipping" but never said when an order would arrive.
Variant
A dynamic tag beside the add-to-cart button showing the estimated delivery date, designed mobile-first.
Why it likely won
Our reading of the result, not the practitioner's claim.
- A specific date answers a question shoppers have right before they commit. A vague promise leaves them to guess, and people tend to guess the worst.
- Placing the date next to the button puts the reassurance at the moment of decision rather than in a shipping policy page.
- A date can also signal that the order needs to happen soon to arrive by then, adding light urgency.
Caveats: Vasta reports 95% confidence, but sample size and test duration were not shared. The revenue figure is reported by the agency.
Who ran it
Vasta ran this test for TryAuri and published the results (Vasta case study). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Vasta →
How to run this test on your store
- Hypothesis
- If we show a specific estimated delivery date next to the add-to-cart button, then conversion rate will rise because shoppers stop worrying about how long delivery will take.
- Primary metric
- Conversion rate
- Guardrails
- Revenue per visitor
- Delivery-related support tickets
- Late-delivery rate versus the shown date
- Who should test it
- Stores that ship reliably within a predictable window and currently use vague shipping language. Skip it if your fulfilment times vary widely, because a wrong date can do more harm than no date.
Questions
Does showing a delivery date increase conversions?
It often helps, because it answers a common pre-purchase worry.
In this test it lifted conversion rate by 3.82%.
Where should the delivery date go on a product page?
Close to the add-to-cart button, where the shopper is deciding. That is where this test placed it.
What if my delivery estimates are sometimes wrong?
Build in a buffer or show a date range.
Missing the promised date can lead to complaints and refunds that cancel out the gain.
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