Euclid
Euclid is a Squarespace theme by Squarespace (Free). Tested on 2026-09-14 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores – for mobile speed and 93 for desktop speed, –/92 for SEO and –/93 for accessibility (mobile/desktop, 0–100).
Mobile
Screenshot pending
Desktop93
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | – | 93 |
| SEO | – | 92 |
| Accessibility | – | 93 |
| Best practices | – | 96 |
Single preset · measured 1 times since 2026-09-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Euclid home page
Mobile
Not extracted yet for this page.
Desktop
Speed 93 · 7 points to gain
- −2.8 Speed Index medium effort
- −2.7 Largest Contentful Paint medium effort
- −0.8 Cumulative Layout Shift medium effort
- −0.6 First Contentful Paint medium 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
- −4.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −2 Heading elements are not in a sequentially-descending order 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 | ||||||
| Euclid default demo ↗ | – | – | – | 93 | 92 | 93 | 2026-09-14 |
| home ↗ | – | – | – | 93 | 92 | 93 | 2026-09-14 |
Show this score on your site
A live badge: it always shows Euclid's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/squarespace/euclid-fluid-demo"><img src="https://themestested.com/badge/squarespace/euclid-fluid-demo.svg" alt="Euclid speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.