Astro Theme Switcher
Astro Theme Switcher is a Astro theme by Jonny Smillie (Free). Tested on 2026-09-14 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 89 for mobile speed and 100 for desktop speed, 100/100 for SEO and 96/96 for accessibility (mobile/desktop, 0–100).
Mobile89
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 89 | 100 |
| SEO | 100 | 100 |
| Accessibility | 96 | 96 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Astro Theme Switcher home page
Mobile
Speed 89 · 11 points to gain
- −8.8 Largest Contentful Paint medium effort
- −2 Speed Index medium effort
- 300 ms Reduce unused JavaScript high effort
Accessibility 96 · 4 points to gain
- −4 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Desktop
Accessibility 96 · 4 points to gain
- −3.8 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 | ||||||
| Astro Theme Switcher default demo ↗ | 89 | 100 | 96 | 100 | 100 | 96 | 2026-09-12 |
| home ↗ | 89 | 100 | 96 | 100 | 100 | 96 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Astro Theme Switcher's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/astro-theme-switcher"><img src="https://themestested.com/badge/astro/astro-theme-switcher.svg" alt="Astro Theme Switcher speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.