Zern
Zern is a Framer theme by Duncan Shen ($99). Tested on 2026-09-14 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 54 for mobile speed and – for desktop speed, 100/– for SEO and 90/– for accessibility (mobile/desktop, 0–100).
Mobile54
Desktop
Screenshot pending
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 54 | – |
| SEO | 100 | – |
| Accessibility | 90 | – |
| Best practices | 100 | – |
Single preset · measured 1 times since 2026-09-14 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Zern home page
Mobile
Speed 54 · 46 points to gain
- −25 Largest Contentful Paint medium effort
- −8.9 Speed Index medium effort
- −6 Cumulative Layout Shift medium effort
- −3.6 Total Blocking Time medium effort
- −2.1 First Contentful Paint medium effort
- 450 ms Reduce unused JavaScript high effort
Accessibility 90 · 10 points to gain
- −3.9 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.9 Links do not have a discernible name medium effort
- −1.7 Document does not have a main landmark. medium effort
Desktop
Not extracted yet for this page.
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Zern default demo ↗ | 54 | 100 | 90 | – | – | – | 2026-09-14 |
| home ↗ | 54 | 100 | 90 | – | – | – | 2026-09-14 |
Show this score on your site
A live badge: it always shows Zern's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/zern"><img src="https://themestested.com/badge/framer/zern.svg" alt="Zern speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.