Sumi
Sumi is a Astro theme by kpab (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 78 for mobile speed and 61 for desktop speed, 100/100 for SEO and 100/100 for accessibility (mobile/desktop, 0–100).
Mobile78
Desktop61
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 78 | 61 |
| SEO | 100 | 100 |
| Accessibility | 100 | 100 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Sumi home page
Mobile
Speed 78 · 22 points to gain
- −19.5 Total Blocking Time medium effort
- −2.1 Speed Index medium effort
Desktop
Speed 61 · 39 points to gain
- −30 Total Blocking Time medium effort
- −9.4 Speed Index medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Sumi default demo ↗ | 78 | 100 | 100 | 61 | 100 | 100 | 2026-09-12 |
| home ↗ | 78 | 100 | 100 | 61 | 100 | 100 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Sumi's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/sumi"><img src="https://themestested.com/badge/astro/sumi.svg" alt="Sumi speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.