Testament
Testament is a Shopify theme by We are Underground ($250). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 70 for mobile speed and 84 for desktop speed, 96/96 for SEO and 95/94 for accessibility (mobile/desktop, 0–100). Those are medians across its 4 tested presets; mobile speed across every tested page ranges from 62 to 80. On its marketplace it is rated 4.9 out of 5 from 400 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 70 | 84 |
| SEO | 96 | 96 |
| Accessibility | 95 | 94 |
| Best practices | 96 | 95 |
Median of 4 presets · measured 24 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Genesis home page
Mobile
Speed 64 · 36 points to gain
- −25 Largest Contentful Paint medium effort
- −6.7 Speed Index medium effort
- −4.3 First Contentful Paint medium effort
- 600 ms Reduce unused JavaScript high effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 89 · 11 points to gain
- −4.7 Image elements do not have `[alt]` attributes low effort
- −3.3 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.3 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 73 · 27 points to gain
- −14.8 Largest Contentful Paint medium effort
- −7.1 Speed Index medium effort
- −4.2 Total Blocking Time medium effort
- −0.5 First Contentful Paint medium effort
- −0.5 Cumulative Layout Shift medium effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 89 · 11 points to gain
- −4.7 Image elements do not have `[alt]` attributes low effort
- −3.3 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.3 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
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Exodus demo ↗ | 66 | 97 | 96 | 89 | 97 | 95 | 2026-09-11 |
| category ↗ | 68 | 100 | 97 | 94 | 100 | 97 | 2026-09-12 |
| home ↗ | 68 | 92 | 93 | 84 | 92 | 93 | 2026-09-11 |
| product ↗ | 62 | 100 | 99 | 88 | 100 | 95 | 2026-09-12 |
| Testament demo ↗ | 71 | 97 | 94 | 85 | 97 | 92 | 2026-09-11 |
| category ↗ | 80 | 100 | 97 | 94 | 100 | 97 | 2026-09-12 |
| home ↗ | 72 | 92 | 85 | 78 | 92 | 85 | 2026-09-11 |
| product ↗ | 62 | 100 | 99 | 82 | 100 | 95 | 2026-09-12 |
| Revelation demo ↗ | 70 | 95 | 95 | 82 | 95 | 93 | 2026-09-11 |
| category ↗ | 80 | 100 | 97 | 81 | 100 | 97 | 2026-09-12 |
| home ↗ | 69 | 85 | 88 | 76 | 85 | 88 | 2026-09-11 |
| product ↗ | 62 | 100 | 99 | 88 | 100 | 95 | 2026-09-12 |
| Genesis default demo ↗ | 69 | 95 | 95 | 83 | 95 | 94 | 2026-09-11 |
| category ↗ | 74 | 100 | 97 | 97 | 100 | 97 | 2026-09-12 |
| home ↗ | 64 | 85 | 89 | 73 | 85 | 89 | 2026-09-11 |
| product ↗ | 69 | 100 | 99 | 80 | 100 | 95 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Testament's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/testament"><img src="https://themestested.com/badge/shopify/testament.svg" alt="Testament speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.