themestestedbyWhirlwind eCommerce logo — Shopify and BigCommerce ecommerce development agencyWhirlwind eCommerce
Mariana theme preview

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
Mariana home page on mobile
Desktop76
Mariana home page on desktop

Scores

MobileDesktop
Speed4876
SEO9292
Accessibility9393
Best practices100100

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 / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
Mariana default demo ↗ 489293769293 2026-10-28
home ↗ 489293769293 2026-10-28

Show this score on your site

A live badge: it always shows Mariana's current score and links back here. Paste this where the theme is sold or documented.

Mariana: mobile speed 48 on Themestested
<a href="https://themestested.com/theme/squarespace/mariana-fluid-demo"><img src="https://themestested.com/badge/squarespace/mariana-fluid-demo.svg" alt="Mariana speed score on Themestested" height="20"></a>

Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.