Volume-grab shipping rates: +1.89% revenue per visitor
Test run byDave DiederenSyntra Labs
Commentary byLiftArchiveOur analysis, not theirsA volume-grab shipping rate setup lifted revenue per visitor by 1.89% and profit per visitor by 1.81%. Dave Diederen ran this three-way test for a Shopify brand across 263,367 visitors. A margin-grab setup finished level with control.
- Revenue per visitor: $1.48 on control vs $1.51 on volume-grab (+1.89%), estimated at about +$28,430 a month.
- Profit per visitor, the primary metric: $1.00 vs $1.02 (+1.81%), estimated at about +$18,311 a month.
- Conversion rate: 2.20% vs 2.23% (+1.14%), about 255 extra orders a month.
- Margin-grab was flat to slightly down: 2.17% conversion and $1.48 revenue per visitor.
- The confidence ranges crossed zero (for example -7% to +11% on revenue per visitor), so this is not a clear win.
The change
Only the shipping rates change; the exact new rates were not shared.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The store's existing shipping rates.
Variant
Two new rate setups were tested: one aimed at more orders (volume-grab) and one aimed at more margin (margin-grab). The exact rates were not shared.
Why it likely won
Our reading of the result, not the practitioner's claim.
- friendlier shipping costs remove a late surprise at checkout and nudge a few more people to finish.
- raising shipping to protect margin cost about as many orders as it gained per order, so it netted out flat.
- the volume setup still grew profit, which suggests the extra orders more than covered the shipping subsidy.
Caveats: The test had 263,367 visitors and 5,791 orders, but the lift is small and its confidence range includes no effect. Test length and the actual rates were not shared.
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 lower or restructure shipping rates to favor order volume, then profit per visitor will rise because more shoppers complete checkout without a shipping-cost surprise.
- Primary metric
- Profit per visitor
- Guardrails
- Revenue per visitor
- Average order value
- Shipping cost per order
- Who should test it
- Stores with steady traffic and a clear view of shipping costs, since the effects are small and need a large sample. It's risky on very low-margin products where every shipping dollar matters.
Questions
Do lower shipping rates increase profit?
In this test the volume-focused rates lifted profit per visitor by 1.81%, while the margin-focused rates were flat. The result was not statistically clear, though.
How much traffic do I need to test shipping rates?
This test used 263,367 visitors and still had a wide confidence range. Shipping changes tend to move numbers by small amounts, so plan for a large sample.
What shipping options are worth testing?
Dave Diederen suggests free over a threshold, a flat fee versus free, and free shipping with a paid express upgrade.
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