Phanatik Astro + Sanity CMS
Phanatik Astro + Sanity CMS is a Astro theme by Lexington Themes (Paid). Tested on 2026-10-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 100 for desktop speed, 66/66 for SEO and 94/95 for accessibility (mobile/desktop, 0–100).
Mobile63

Desktop100

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 63 | 100 |
| SEO | 66 | 66 |
| Accessibility | 94 | 95 |
| Best practices | 96 | 96 |
Single preset · measured 4 times since 2026-10-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Phanatik Astro + Sanity CMS home page
Mobile
Speed 63 · 37 points to gain
- −23.5 Largest Contentful Paint medium effort
- −8.8 First Contentful Paint medium effort
- −4.7 Speed Index medium effort
- 150 ms Minify JavaScript low effort
- 150 ms Reduce unused JavaScript high effort
SEO 66 · 34 points to gain
- −33.6 Page is blocked from indexing low effort
Accessibility 94 · 6 points to gain
- −5.7 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
SEO 66 · 34 points to gain
- −33.6 Page is blocked from indexing low effort
Accessibility 95 · 5 points to gain
- −4.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Phanatik Astro + Sanity CMS default demo ↗ | 63 | 66 | 94 | 100 | 66 | 95 | 2026-10-12 |
| home ↗ | 63 | 66 | 94 | 100 | 66 | 95 | 2026-10-12 |