Heritage
Heritage is a Shopify theme by Shopify (Free). Tested on 2026-11-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 71 for mobile speed and 98 for desktop speed, 95/95 for SEO and 86/87 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 3.5 out of 5 from 13 reviews.
Mobile75

Desktop99

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 71 | 98 |
| SEO | 95 | 95 |
| Accessibility | 86 | 87 |
| Best practices | 96 | 96 |
Single preset · measured 30 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — heritage home page
Mobile
Speed 75 · 25 points to gain
- −23.8 Largest Contentful Paint medium effort
- −0.8 Speed Index medium effort
- 150 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 89 · 11 points to gain
- −3.6 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.6 Links do not have a discernible name medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 99 · 1 points to gain
- −1.3 Largest Contentful Paint medium effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 86 · 14 points to gain
- −3.4 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.4 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.4 Links do not have a discernible name medium effort
- −3.4 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| heritage default demo ↗ | 71 | 95 | 86 | 98 | 95 | 87 | 2026-11-07 |
| category ↗ | 71 | 92 | 93 | 98 | 92 | 90 | 2026-11-07 |
| home ↗ | 75 | 92 | 89 | 99 | 92 | 86 | 2026-11-07 |
| product ↗ | 67 | 100 | 75 | 98 | 100 | 85 | 2026-11-07 |