Hemlock
Hemlock 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 52 for mobile speed and 91 for desktop speed, 92/92 for SEO and 92/91 for accessibility (mobile/desktop, 0–100).
Mobile52
Desktop91
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 52 | 91 |
| SEO | 92 | 92 |
| Accessibility | 92 | 91 |
| Best practices | 100 | 100 |
Single preset · measured 10 times since 2026-10-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Hemlock home page
Mobile
Speed 52 · 48 points to gain
- −25 Largest Contentful Paint medium effort
- −9.2 First Contentful Paint medium effort
- −7.5 Total Blocking Time medium effort
- −6.2 Speed Index medium effort
- 1.8 s Reduce unused JavaScript high effort
- 450 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 92 · 8 points to gain
- −5.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −2.4 Heading elements are not in a sequentially-descending order medium effort
Desktop
Speed 91 · 9 points to gain
- −8 Largest Contentful Paint medium effort
- −0.6 Total Blocking Time medium effort
- −0.6 Speed Index medium effort
- 430 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 91 · 9 points to gain
- −6.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −2.6 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 | ||||||
| Hemlock default demo ↗ | 52 | 92 | 92 | 91 | 92 | 91 | 2026-10-28 |
| home ↗ | 52 | 92 | 92 | 91 | 92 | 91 | 2026-10-28 |
Show this score on your site
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<a href="https://themestested.com/theme/squarespace/hemlock-fluid-demo"><img src="https://themestested.com/badge/squarespace/hemlock-fluid-demo.svg" alt="Hemlock speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.