River
River is a Squarespace theme by Squarespace (Free). Tested on 2026-11-05 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 67 for mobile speed and 55 for desktop speed, 85/85 for SEO and 91/91 for accessibility (mobile/desktop, 0–100).
Mobile67
Desktop55
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 67 | 55 |
| SEO | 85 | 85 |
| Accessibility | 91 | 91 |
| Best practices | 100 | 100 |
Single preset · measured 10 times since 2026-11-05 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — River home page
Mobile
Speed 67 · 33 points to gain
- −24 Largest Contentful Paint medium effort
- −4.6 First Contentful Paint medium effort
- −3.7 Speed Index medium effort
- 600 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links do not have descriptive text low effort
Accessibility 91 · 9 points to gain
- −3.9 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.9 Links do not have a discernible name medium effort
- −1.7 Heading elements are not in a sequentially-descending order medium effort
Desktop
Speed 55 · 45 points to gain
- −23.4 Total Blocking Time medium effort
- −18.3 Largest Contentful Paint medium effort
- −3.6 Speed Index medium effort
- 530 ms Reduce unused JavaScript high effort
- 120 ms Reduce unused CSS high effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links do not have descriptive text low effort
Accessibility 91 · 9 points to gain
- −3.9 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.9 Links do not have a discernible name medium effort
- −1.7 Heading elements are not in a sequentially-descending order medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| River default demo ↗ | 67 | 85 | 91 | 55 | 85 | 91 | 2026-11-04 |
| home ↗ | 67 | 85 | 91 | 55 | 85 | 91 | 2026-11-04 |
Show this score on your site
A live badge: it always shows River's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/squarespace/river-fluid-demo"><img src="https://themestested.com/badge/squarespace/river-fluid-demo.svg" alt="River speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.