Mariana
Mariana is a Squarespace theme by Squarespace (Free). Tested on 2026-10-28 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 48 for mobile speed and 76 for desktop speed, 92/92 for SEO and 93/93 for accessibility (mobile/desktop, 0–100).
Mobile48

Desktop76

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 48 | 76 |
| SEO | 92 | 92 |
| Accessibility | 93 | 93 |
| Best practices | 100 | 100 |
Single preset · measured 10 times since 2026-10-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Mariana home page
Mobile
Speed 48 · 52 points to gain
- −25 Largest Contentful Paint medium effort
- −9.3 First Contentful Paint medium effort
- −8.1 Speed Index medium effort
- −4.7 Cumulative Layout Shift medium effort
- −4.5 Total Blocking Time medium effort
- 2.7 s Reduce unused JavaScript high effort
- 1.1 s Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 93 · 7 points to gain
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.6 Links do not have a discernible name medium effort
Desktop
Speed 76 · 24 points to gain
- −18 Largest Contentful Paint medium effort
- −3.3 Speed Index medium effort
- −2.7 Total Blocking Time medium effort
- 370 ms Reduce unused JavaScript high effort
- 160 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 93 · 7 points to gain
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.6 Links do not have a discernible name medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Mariana default demo ↗ | 48 | 92 | 93 | 76 | 92 | 93 | 2026-10-28 |
| home ↗ | 48 | 92 | 93 | 76 | 92 | 93 | 2026-10-28 |