Nucleare
Nucleare is a WordPress theme by CrestaProject (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 95 for mobile speed and 100 for desktop speed, 40/40 for SEO and 90/95 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 5.0 out of 5 from 3 reviews.
Mobile95
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 95 | 100 |
| SEO | 40 | 40 |
| Accessibility | 90 | 95 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Nucleare home page
Mobile
Speed 95 · 5 points to gain
- −3 First Contentful Paint medium effort
- −2.2 Largest Contentful Paint medium effort
SEO 40 · 60 points to gain
- −40.3 Page is blocked from indexing low effort
- −10 Document does not have a meta description low effort
- −10 Links do not have descriptive text low effort
Accessibility 90 · 10 points to gain
- −5.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −5.1 Touch targets do not have sufficient size or spacing. medium effort
Desktop
SEO 40 · 60 points to gain
- −40.3 Page is blocked from indexing low effort
- −10 Document does not have a meta description low effort
- −10 Links do not have descriptive text low effort
Accessibility 95 · 5 points to gain
- −5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Nucleare default demo ↗ | 95 | 40 | 90 | 100 | 40 | 95 | 2026-09-12 |
| home ↗ | 95 | 40 | 90 | 100 | 40 | 95 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Nucleare's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/nucleare"><img src="https://themestested.com/badge/wordpress/nucleare.svg" alt="Nucleare speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.