# Customer reviews absent from decision pages — dev spec
Site: hostinger.com · Priority 6 · Medium · Effort: Medium (2-5 days)

## Problem
No customer testimonials, review counts, or star ratings are visible on key decision pages despite a 4.7 Trustpilot rating.

## Evidence (from the live site)
> A section heading reads “Plans and prices”.
> A section heading reads “Bring your website online today”.
> 2 distinct calls to action compete on the same page: “Start for free”, “Buy a domain”.

## Current state
cta: Start for free | Buy a domain; notes: No social proof elements visible near pricing or CTAs.

## Required change
cta: Start for free; notes: Embed Trustpilot summary widget (star rating and review count) beside pricing and primary CTA.

## Acceptance criteria
- GIVEN a first-time visitor on the affected page
- WHEN the change is live
- THEN Embed Trustpilot summary widget (star rating and review count) beside pricing and primary CTA.
- AND no layout regression at 375px / 768px / 1280px
- AND the changed control is keyboard-reachable with an accessible name

## Tracking
- Fire `cro_customer_reviews_absent_from_decision_pages` 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
- 1,941,808 visitors per variant to detect a 2.0% relative lift
- Run at least one full business cycle; duration depends on traffic

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