Stellar
Stellar is a Astro theme by Cosmic Themes (Paid). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores – for mobile speed and 100 for desktop speed, –/100 for SEO and –/95 for accessibility (mobile/desktop, 0–100).
Mobile
Screenshot pending
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | – | 100 |
| SEO | – | 100 |
| Accessibility | – | 95 |
| Best practices | – | 100 |
Single preset · measured 1 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Stellar home page
Mobile
Not extracted yet for this page.
Desktop
Accessibility 95 · 5 points to gain
- −4.5 List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements. low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Stellar default demo ↗ | – | – | – | 100 | 100 | 95 | 2026-09-12 |
| home ↗ | – | – | – | 100 | 100 | 95 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Stellar's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/stellar"><img src="https://themestested.com/badge/astro/stellar.svg" alt="Stellar speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.