Crimson
Crimson is a Ghost theme by go.themeupstudio ($89). Tested on 2026-11-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 75 for mobile speed and 90 for desktop speed, 100/100 for SEO and 97/97 for accessibility (mobile/desktop, 0–100).
Mobile75
Desktop90
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 75 | 90 |
| SEO | 100 | 100 |
| Accessibility | 97 | 97 |
| Best practices | 100 | 100 |
Single preset · measured 8 times since 2026-10-09 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Crimson home page
Mobile
Speed 75 · 25 points to gain
- −24.3 Largest Contentful Paint medium effort
- −0.7 First Contentful Paint medium effort
- 610 ms Reduce unused JavaScript high effort
Accessibility 97 · 3 points to gain
- −3.4 Touch targets do not have sufficient size or spacing. medium effort
Desktop
Speed 90 · 10 points to gain
- −6 Total Blocking Time medium effort
- −2.5 Largest Contentful Paint medium effort
- −1.3 Cumulative Layout Shift medium effort
- −0.7 Speed Index medium effort
Accessibility 97 · 3 points to gain
- −3.4 Touch targets do not have sufficient size or spacing. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Crimson default demo ↗ | 75 | 100 | 97 | 90 | 100 | 97 | 2026-11-07 |
| home ↗ | 75 | 100 | 97 | 90 | 100 | 97 | 2026-11-07 |
Show this score on your site
A live badge: it always shows Crimson's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/ghost/crimson"><img src="https://themestested.com/badge/ghost/crimson.svg" alt="Crimson speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.