Antimatter
Antimatter is a Framer theme by John Nicholson (Free). Tested on 2026-10-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 72 for mobile speed and 80 for desktop speed, 100/100 for SEO and 91/90 for accessibility (mobile/desktop, 0–100).
Mobile72
Desktop80
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 72 | 80 |
| SEO | 100 | 100 |
| Accessibility | 91 | 90 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-10-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Antimatter home page
Mobile
Speed 72 · 28 points to gain
- −20 Largest Contentful Paint medium effort
- −6.5 First Contentful Paint medium effort
- −1.2 Speed Index medium effort
- 600 ms Reduce unused JavaScript high effort
Accessibility 91 · 9 points to gain
- −4.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.6 `<html>` element does not have a `[lang]` attribute low effort
Desktop
Speed 80 · 20 points to gain
- −17.1 Total Blocking Time medium effort
- −2 Largest Contentful Paint medium effort
- −0.7 Speed Index medium effort
- −0.5 First Contentful Paint medium effort
Accessibility 90 · 10 points to gain
- −4.8 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.8 `<html>` element does not have a `[lang]` attribute low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Antimatter default demo ↗ | 72 | 100 | 91 | 80 | 100 | 90 | 2026-10-07 |
| home ↗ | 72 | 100 | 91 | 80 | 100 | 90 | 2026-10-07 |
Show this score on your site
A live badge: it always shows Antimatter's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/antimatter"><img src="https://themestested.com/badge/framer/antimatter.svg" alt="Antimatter speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.