Simple Grey
Simple Grey is a WordPress theme by Peter Hebert (Free). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 89 for mobile speed and 99 for desktop speed, 54/54 for SEO and 85/85 for accessibility (mobile/desktop, 0–100).
Mobile89
Desktop99
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 89 | 99 |
| SEO | 54 | 54 |
| Accessibility | 85 | 85 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-13 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Simple Grey home page
Mobile
Speed 89 · 11 points to gain
- −6.8 Largest Contentful Paint medium effort
- −4.1 First Contentful Paint medium effort
- 150 ms Reduce unused CSS high effort
SEO 54 · 46 points to gain
- −36.6 Page is blocked from indexing low effort
- −9.1 Document does not have a meta description low effort
Accessibility 85 · 15 points to gain
- −4.3 Form elements do not have associated labels medium effort
- −4.3 Select elements do not have associated label elements. medium effort
- −3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3 Touch targets do not have sufficient size or spacing. medium effort
Desktop
Speed 99 · 1 points to gain
- −0.5 Largest Contentful Paint medium effort
SEO 54 · 46 points to gain
- −36.6 Page is blocked from indexing low effort
- −9.1 Document does not have a meta description low effort
Accessibility 85 · 15 points to gain
- −4.3 Form elements do not have associated labels medium effort
- −4.3 Select elements do not have associated label elements. medium effort
- −3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3 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 | ||||||
| Simple Grey default demo ↗ | 89 | 54 | 85 | 99 | 54 | 85 | 2026-09-13 |
| home ↗ | 89 | 54 | 85 | 99 | 54 | 85 | 2026-09-13 |
Show this score on your site
A live badge: it always shows Simple Grey's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/simple-grey"><img src="https://themestested.com/badge/wordpress/simple-grey.svg" alt="Simple Grey speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.