Muster
Muster is a Framer theme by Kaialan Razz ($129). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 78 for mobile speed and 96 for desktop speed, 100/100 for SEO and 91/91 for accessibility (mobile/desktop, 0–100).
Mobile78
Desktop96
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 78 | 96 |
| SEO | 100 | 100 |
| Accessibility | 91 | 91 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-13 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Muster home page
Mobile
Speed 78 · 22 points to gain
- −18.8 Largest Contentful Paint medium effort
- −2.5 First Contentful Paint medium effort
- 150 ms Reduce unused JavaScript high effort
Accessibility 91 · 9 points to gain
- −3.6 Elements use prohibited ARIA attributes medium effort
- −3.6 Touch targets do not have sufficient size or spacing. medium effort
- −1.6 Document does not have a main landmark. medium effort
Desktop
Speed 96 · 4 points to gain
- −3.5 Largest Contentful Paint medium effort
Accessibility 91 · 9 points to gain
- −3.6 Elements use prohibited ARIA attributes medium effort
- −3.6 Links do not have a discernible name medium effort
- −1.6 Document does not have a main landmark. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Muster default demo ↗ | 78 | 100 | 91 | 96 | 100 | 91 | 2026-09-13 |
| home ↗ | 78 | 100 | 91 | 96 | 100 | 91 | 2026-09-13 |
Show this score on your site
A live badge: it always shows Muster's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/muster"><img src="https://themestested.com/badge/framer/muster.svg" alt="Muster speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.