Concrete
Concrete is a Webflow theme by Templates ($129). Tested on 2026-09-28 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 60 for mobile speed and 93 for desktop speed, 100/100 for SEO and 87/87 for accessibility (mobile/desktop, 0–100).
Mobile60
Desktop93
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 60 | 93 |
| SEO | 100 | 100 |
| Accessibility | 87 | 87 |
| Best practices | 96 | 96 |
Single preset · measured 2 times since 2026-09-28 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Concrete home page
Mobile
Speed 60 · 40 points to gain
- −24.8 Largest Contentful Paint medium effort
- −9.7 First Contentful Paint medium effort
- −5.7 Speed Index medium effort
- 450 ms Reduce unused JavaScript high effort
- 150 ms Reduce unused CSS high effort
Accessibility 87 · 13 points to gain
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.3 Links rely on color to be distinguishable. medium effort
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
- −1.4 Document does not have a main landmark. medium effort
Best practices 96 · 4 points to gain
- −3.8 Displays images with incorrect aspect ratio low effort
Desktop
Speed 93 · 7 points to gain
- −6.5 Largest Contentful Paint medium effort
Accessibility 87 · 13 points to gain
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.3 Links rely on color to be distinguishable. medium effort
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
- −1.4 Document does not have a main landmark. medium effort
Best practices 96 · 4 points to gain
- −3.8 Displays images with incorrect aspect ratio low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Concrete default demo ↗ | 60 | 100 | 87 | 93 | 100 | 87 | 2026-09-28 |
| home ↗ | 60 | 100 | 87 | 93 | 100 | 87 | 2026-09-28 |
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<a href="https://themestested.com/theme/webflow/concrete-construction-website-template"><img src="https://themestested.com/badge/webflow/concrete-construction-website-template.svg" alt="Concrete speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.