# Missing trust signals — dev spec
Site: msn.com · Priority 10 · High · Effort: Medium (2-5 days)

## Problem
Homepage lacks visible returns policy and guarantee, increasing perceived risk for first-time visitors and reducing conversion.

## Evidence (from the live site)
> Measured on the live homepage: no match for returns policy, guarantee.

## Current state
notes: absent: returns policy, guarantee

## Required change
notes: Surface review counts, the returns window and a guarantee near the primary call to action.

## Acceptance criteria
- GIVEN a first-time visitor on the affected page
- WHEN the change is live
- THEN Surface review counts, the returns window and a guarantee near the primary call to action.
- AND no layout regression at 375px / 768px / 1280px
- AND the changed control is keyboard-reachable with an accessible name

## Tracking
- Fire `cro_missing_trust_signals` on interaction with the changed element
- Verify the event fires in BOTH variants before opening traffic

## Test plan
- Two-proportion z-test, 95% significance, 80% power
- 315,206 visitors per variant to detect a 5.0% relative lift
- Run at least one full business cycle; 1 days

## Rollback
Feature-flag the change; revert if the primary metric drops for 3 consecutive days.