Astro Big Doc
Astro Big Doc is a Astro theme by MicroWebStacks (Free). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 75 for mobile speed and 96 for desktop speed, 73/73 for SEO and 78/78 for accessibility (mobile/desktop, 0–100).
Mobile75
Desktop96
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 75 | 96 |
| SEO | 73 | 73 |
| Accessibility | 78 | 78 |
| Best practices | 96 | 100 |
Single preset · measured 2 times since 2026-09-13 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Astro Big Doc home page
Mobile
Speed 75 · 25 points to gain
- −18 Largest Contentful Paint medium effort
- −4 Speed Index medium effort
- −3.5 First Contentful Paint medium effort
- 900 ms Reduce unused JavaScript high effort
SEO 73 · 27 points to gain
- −9.1 Document doesn't have a `<title>` element low effort
- −9.1 Document does not have a meta description low effort
- −9.1 Image elements do not have `[alt]` attributes low effort
Accessibility 78 · 22 points to gain
- −4.5 Buttons do not have an accessible name medium effort
- −4.5 Image elements do not have `[alt]` attributes low effort
- −3.2 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.2 Document doesn't have a `<title>` element low effort
- −3.2 Links do not have a discernible name medium effort
- −3.2 `<object>` elements do not have alternate text medium effort
Best practices 96 · 4 points to gain
- −3.8 Serves images with low resolution low effort
Desktop
Speed 96 · 4 points to gain
- −3.5 Cumulative Layout Shift medium effort
- −0.8 Largest Contentful Paint medium effort
- 160 ms Reduce unused JavaScript high effort
SEO 73 · 27 points to gain
- −9.1 Document doesn't have a `<title>` element low effort
- −9.1 Document does not have a meta description low effort
- −9.1 Image elements do not have `[alt]` attributes low effort
Accessibility 78 · 22 points to gain
- −4.5 Buttons do not have an accessible name medium effort
- −4.5 Image elements do not have `[alt]` attributes low effort
- −3.2 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.2 Document doesn't have a `<title>` element low effort
- −3.2 Links do not have a discernible name medium effort
- −3.2 `<object>` elements do not have alternate text medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Astro Big Doc default demo ↗ | 75 | 73 | 78 | 96 | 73 | 78 | 2026-09-13 |
| home ↗ | 75 | 73 | 78 | 96 | 73 | 78 | 2026-09-13 |
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<a href="https://themestested.com/theme/astro/astro-big-doc"><img src="https://themestested.com/badge/astro/astro-big-doc.svg" alt="Astro Big Doc speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.