# Site-wide shipping info banner: +3.3% conversion, not significant

- Outcome: Flat / inconclusive
- Page type: Site-wide (Ecommerce)
- Elements: Announcement bars, Shipping & delivery messaging
- Test run by: [Clean Commit](https://liftarchive.com/practitioners/clean-commit/)
- Commentary by: LiftArchive (our analysis, not theirs)
- Original source: https://cleancommit.io/ab-tests/shipping-info-banner-that-expand-announcement-bar-information/
- Page: https://liftarchive.com/test/cleancommit-shipping-info-banner-that-expand-announcement-bar-informat/

A site-wide shipping info banner that opened a details panel lifted conversion rate 3.3%, but the result was not statistically significant, so we count it as inconclusive. Clean Commit ran this test for an anonymized Shopify store and published it in its A/B test library. Mobile improved, while desktop revenue per visitor fell sharply.

## Result

**+3.3% conversion, not significant**

- Conversion rate: +3.3%, with a 75.8% probability that the variant was better. Not significant.
- Add-to-cart rate: +5.0%, and orders rose 2.1%.
- Mobile: conversion rate +5.5%.
- Desktop: revenue per visitor fell 16.4%, so overall revenue per visitor barely moved (+0.9%). Average order value fell 2.5%.

## Control

The site had no shipping info banner.

## Variant

A banner at the top of every page on mobile and desktop opened a panel when clicked. The panel showed the free shipping offer, shipping times, the returns policy and customer service contacts.

## Why it likely came out this way (our reading)

- Mobile shoppers have less room to hunt for policies, so a one-tap panel may have helped them most.
- On desktop, the panel may have added friction or pulled attention from browsing.
- Highlighting free shipping can lead shoppers to spend just enough to qualify, which fits the lower order value.

## Caveats

68,939 visitors, duration not shared, and the result did not reach significance. Desktop and mobile moved in different directions.

## How to run this test

- Hypothesis: If we add a site-wide banner that opens shipping and returns details, then more shoppers will buy because key questions are answered in one tap.
- Primary metric: Conversion rate
- Guardrail: Desktop revenue per visitor
- Guardrail: Average order value
- Guardrail: Add-to-cart rate
- Who should test it: Mobile-heavy stores whose shipping and return terms are a selling point. Consider showing it on mobile only if desktop revenue drops as it did here.

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Credit: Clean Commit ran this test and owns the result. Summary and commentary by LiftArchive (https://liftarchive.com/test/cleancommit-shipping-info-banner-that-expand-announcement-bar-informat/).
Usage: Free to use, quote and build on, with credit and a link: name the practitioner or organization that ran the test and link to its LiftArchive page. The results belong to the practitioners who ran and shared them; the summaries and commentary are LiftArchive's.