Quantum.core
Quantum.core is a Framer theme by Sid G ($35). Tested on 2026-09-14 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 60 for mobile speed and 69 for desktop speed, 100/100 for SEO and 92/92 for accessibility (mobile/desktop, 0–100).
Mobile60
Desktop69
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 60 | 69 |
| SEO | 100 | 100 |
| Accessibility | 92 | 92 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Quantum.core home page
Mobile
Speed 60 · 40 points to gain
- −28.8 Total Blocking Time medium effort
- −7.3 Largest Contentful Paint medium effort
- −3.5 First Contentful Paint medium effort
- 150 ms Reduce unused JavaScript high effort
Accessibility 92 · 8 points to gain
- −5.7 `<html>` element does not have a `[lang]` attribute low effort
- −2.5 Document does not have a main landmark. medium effort
Desktop
Speed 69 · 31 points to gain
- −28.8 Total Blocking Time medium effort
- −1.9 Speed Index medium effort
Accessibility 92 · 8 points to gain
- −5.7 `<html>` element does not have a `[lang]` attribute low effort
- −2.5 Document does not have a main landmark. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Quantum.core default demo ↗ | 60 | 100 | 92 | 69 | 100 | 92 | 2026-09-14 |
| home ↗ | 60 | 100 | 92 | 69 | 100 | 92 | 2026-09-14 |
Show this score on your site
A live badge: it always shows Quantum.core's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/quantum-core"><img src="https://themestested.com/badge/framer/quantum-core.svg" alt="Quantum.core speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.