LUTs Lab
LUTs Lab is a Framer theme by Thanh Tran (Free). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 68 for mobile speed and 94 for desktop speed, 92/92 for SEO and 90/90 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 53.4 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile68
Desktop94
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 68 | 94 |
| SEO | 92 | 92 |
| Accessibility | 90 | 90 |
| 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 — LUTs Lab home page
Mobile
Speed 68 · 32 points to gain
- −24.5 Largest Contentful Paint medium effort
- −3.8 Speed Index medium effort
- −3.6 First Contentful Paint medium effort
- −0.5 Cumulative Layout Shift medium effort
- 450 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 90 · 10 points to gain
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.6 Links do not have a discernible name medium effort
- −1.6 Heading elements are not in a sequentially-descending order medium effort
- −1.6 Document does not have a main landmark. medium effort
Desktop
Speed 94 · 6 points to gain
- −4.3 Largest Contentful Paint medium effort
- −1.3 Speed Index medium effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 90 · 10 points to gain
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.6 Links do not have a discernible name medium effort
- −1.6 Heading elements are not in a sequentially-descending order 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 | ||||||
| LUTs Lab default demo ↗ | 68 | 92 | 90 | 94 | 92 | 90 | 2026-09-13 |
| home ↗ | 68 | 92 | 90 | 94 | 92 | 90 | 2026-09-13 |
Show this score on your site
A live badge: it always shows LUTs Lab's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/luts-lab"><img src="https://themestested.com/badge/framer/luts-lab.svg" alt="LUTs Lab speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.