Frosti
Frosti is a Astro theme by SunMaple (Free). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 96 for mobile speed and 100 for desktop speed, 100/100 for SEO and 97/96 for accessibility (mobile/desktop, 0–100). Note: its demo home page is light — 97 KB in 15 requests — where a stocked storefront is usually 1–4 MB, so the speed score flatters it.
Mobile96
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 96 | 100 |
| SEO | 100 | 100 |
| Accessibility | 97 | 96 |
| 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 — Frosti home page
Mobile
Speed 96 · 4 points to gain
- −2.2 Speed Index medium effort
- −1.7 Largest Contentful Paint medium effort
- 290 ms Reduce unused CSS high effort
Accessibility 97 · 3 points to gain
- −3.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Desktop
Accessibility 96 · 4 points to gain
- −3.9 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 | ||||||
| Frosti default demo ↗ | 96 | 100 | 97 | 100 | 100 | 96 | 2026-09-13 |
| home ↗ | 96 | 100 | 97 | 100 | 100 | 96 | 2026-09-13 |
Show this score on your site
A live badge: it always shows Frosti's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/frosti"><img src="https://themestested.com/badge/astro/frosti.svg" alt="Frosti speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.