CASTLANE Nocturne
CASTLANE Nocturne is a Framer theme by KamnevApps (Free). Tested on 2026-10-23 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 40 for mobile speed and 57 for desktop speed, 69/69 for SEO and 94/94 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 7.2 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile40

Desktop57

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 40 | 57 |
| SEO | 69 | 69 |
| Accessibility | 94 | 94 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-10-23 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — CASTLANE Nocturne home page
Mobile
Speed 40 · 60 points to gain
- −30 Total Blocking Time medium effort
- −20 Largest Contentful Paint medium effort
- −8 Speed Index medium effort
- −2 First Contentful Paint medium effort
- −0.5 Cumulative Layout Shift medium effort
- 900 ms Reduce unused JavaScript high effort
SEO 69 · 31 points to gain
- −31 Page is blocked from indexing low effort
Accessibility 94 · 6 points to gain
- −4.4 `<html>` element does not have a `[lang]` attribute low effort
- −1.9 Document does not have a main landmark. medium effort
Desktop
Speed 57 · 43 points to gain
- −30 Total Blocking Time medium effort
- −9.7 Speed Index medium effort
- −1.7 Largest Contentful Paint medium effort
- −1.5 Cumulative Layout Shift medium effort
- 160 ms Reduce unused JavaScript high effort
SEO 69 · 31 points to gain
- −31 Page is blocked from indexing low effort
Accessibility 94 · 6 points to gain
- −4.4 `<html>` element does not have a `[lang]` attribute low effort
- −1.9 Document does not have a main landmark. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| CASTLANE Nocturne default demo ↗ | 40 | 69 | 94 | 57 | 69 | 94 | 2026-10-23 |
| home ↗ | 40 | 69 | 94 | 57 | 69 | 94 | 2026-10-23 |