Ferrum
Ferrum is a Astro theme by Lauro Guedes (Paid). Tested on 2026-11-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 73 for desktop speed, 100/100 for SEO and 92/92 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 13.4 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile63
Desktop73
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 63 | 73 |
| SEO | 100 | 100 |
| Accessibility | 92 | 92 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-11-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Ferrum home page
Mobile
Speed 63 · 37 points to gain
- −24 Total Blocking Time medium effort
- −12.5 Largest Contentful Paint medium effort
- 450 ms Reduce unused JavaScript high effort
Accessibility 92 · 8 points to gain
- −3.3 Elements use prohibited ARIA attributes medium effort
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Desktop
Speed 73 · 27 points to gain
- −22.3 Cumulative Layout Shift medium effort
- −4.5 Total Blocking Time medium effort
- −0.5 Largest Contentful Paint medium effort
Accessibility 92 · 8 points to gain
- −3.3 Elements use prohibited ARIA attributes medium effort
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Ferrum default demo ↗ | 63 | 100 | 92 | 73 | 100 | 92 | 2026-11-07 |
| home ↗ | 63 | 100 | 92 | 73 | 100 | 92 | 2026-11-07 |
Show this score on your site
A live badge: it always shows Ferrum's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/ferrum-motion-first-astro-template-for-logistics"><img src="https://themestested.com/badge/astro/ferrum-motion-first-astro-template-for-logistics.svg" alt="Ferrum speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.