BERTHLINE
BERTHLINE is a Framer theme by KamnevApps (Free). Tested on 2026-10-06 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 40 for mobile speed and 66 for desktop speed, 66/66 for SEO and 92/92 for accessibility (mobile/desktop, 0–100).
Mobile40

Desktop66

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 40 | 66 |
| SEO | 66 | 66 |
| Accessibility | 92 | 92 |
| Best practices | 92 | 92 |
Single preset · measured 2 times since 2026-10-06 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — BERTHLINE home page
Mobile
Speed 40 · 60 points to gain
- −27.3 Total Blocking Time medium effort
- −19.3 Largest Contentful Paint medium effort
- −6.9 Speed Index medium effort
- −6.8 First Contentful Paint medium effort
- 450 ms Reduce unused JavaScript high effort
SEO 66 · 34 points to gain
- −33.6 Page is blocked from indexing low 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
Best practices 92 · 8 points to gain
- −3.8 Browser errors were logged to the console medium effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Desktop
Speed 66 · 34 points to gain
- −30 Total Blocking Time medium effort
- −3.3 Speed Index medium effort
- −0.8 Largest Contentful Paint medium effort
SEO 66 · 34 points to gain
- −33.6 Page is blocked from indexing low 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
Best practices 92 · 8 points to gain
- −3.8 Browser errors were logged to the console medium effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| BERTHLINE default demo ↗ | 40 | 66 | 92 | 66 | 66 | 92 | 2026-10-06 |
| home ↗ | 40 | 66 | 92 | 66 | 66 | 92 | 2026-10-06 |