Montclaire
Montclaire 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 44 for mobile speed and 94 for desktop speed, 92/92 for SEO and 93/93 for accessibility (mobile/desktop, 0–100).
Mobile44
Desktop94
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 44 | 94 |
| SEO | 92 | 92 |
| Accessibility | 93 | 93 |
| Best practices | 96 | 96 |
Single preset · measured 8 times since 2026-10-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Montclaire home page
Mobile
Speed 44 · 56 points to gain
- −25 Largest Contentful Paint medium effort
- −15.9 Total Blocking Time medium effort
- −8.8 First Contentful Paint medium effort
- −6.6 Speed Index medium effort
- 2.5 s Reduce unused JavaScript high effort
- 600 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
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 94 · 6 points to gain
- −4.3 Largest Contentful Paint medium effort
- −1.3 Speed Index medium effort
- −0.6 Total Blocking Time medium effort
- 120 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
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 | ||||||
| Montclaire default demo ↗ | 44 | 92 | 93 | 94 | 92 | 93 | 2026-10-28 |
| home ↗ | 44 | 92 | 93 | 94 | 92 | 93 | 2026-10-28 |
Show this score on your site
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<a href="https://themestested.com/theme/squarespace/montclaire-fluid-demo"><img src="https://themestested.com/badge/squarespace/montclaire-fluid-demo.svg" alt="Montclaire speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.