Sirius Astro
Sirius Astro is a Astro theme by Themefisher (Paid). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 97 for mobile speed and 100 for desktop speed, 92/92 for SEO and 98/98 for accessibility (mobile/desktop, 0–100).
Mobile97
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 97 | 100 |
| SEO | 92 | 92 |
| Accessibility | 98 | 98 |
| Best practices | 92 | 96 |
Single preset · measured 2 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Sirius Astro home page
Mobile
Speed 97 · 3 points to gain
- −2.2 Largest Contentful Paint medium effort
- −0.6 Speed Index medium effort
SEO 92 · 8 points to gain
- −8.3 Links do not have descriptive text low effort
Accessibility 98 · 2 points to gain
- −2.1 Heading elements are not in a sequentially-descending order medium effort
Best practices 92 · 8 points to gain
- −3.8 Displays images with incorrect aspect ratio low effort
- −3.8 Serves images with low resolution low effort
Desktop
SEO 92 · 8 points to gain
- −8.3 Links do not have descriptive text low effort
Accessibility 98 · 2 points to gain
- −2.1 Heading elements are not in a sequentially-descending order medium effort
Best practices 96 · 4 points to gain
- −3.8 Displays images with incorrect aspect ratio low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Sirius Astro default demo ↗ | 97 | 92 | 98 | 100 | 92 | 98 | 2026-09-12 |
| home ↗ | 97 | 92 | 98 | 100 | 92 | 98 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Sirius Astro's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/sirius-astro"><img src="https://themestested.com/badge/astro/sirius-astro.svg" alt="Sirius Astro speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.