Fillmore
Fillmore 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 57 for mobile speed and 86 for desktop speed, 85/85 for SEO and 92/92 for accessibility (mobile/desktop, 0–100).
Mobile57

Desktop86

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 57 | 86 |
| SEO | 85 | 85 |
| Accessibility | 92 | 92 |
| Best practices | 100 | 100 |
Single preset · measured 12 times since 2026-10-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Fillmore home page
Mobile
Speed 57 · 43 points to gain
- −25 Largest Contentful Paint medium effort
- −9.1 First Contentful Paint medium effort
- −7.3 Speed Index medium effort
- −1.2 Total Blocking Time medium effort
- 2.1 s Reduce unused JavaScript high effort
- 600 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 92 · 8 points to gain
- −4.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.1 Links do not have a discernible name medium effort
Desktop
Speed 86 · 14 points to gain
- −8.2 Largest Contentful Paint medium effort
- −2.2 Cumulative Layout Shift medium effort
- −1.9 Speed Index medium effort
- −1.5 Total Blocking Time medium 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 92 · 8 points to gain
- −4.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.1 Links do not have a discernible name medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Fillmore default demo ↗ | 57 | 85 | 92 | 86 | 85 | 92 | 2026-10-28 |
| home ↗ | 57 | 85 | 92 | 86 | 85 | 92 | 2026-10-28 |