Chassis
Chassis is a Framer theme by Adam Kansky ($69). Tested on 2026-10-05 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 56 for mobile speed and 63 for desktop speed, 69/69 for SEO and 99/99 for accessibility (mobile/desktop, 0–100).
Mobile56
Desktop63
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 56 | 63 |
| SEO | 69 | 69 |
| Accessibility | 99 | 99 |
| Best practices | 92 | 92 |
Single preset · measured 2 times since 2026-10-05 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Chassis home page
Mobile
Speed 56 · 44 points to gain
- −28.2 Total Blocking Time medium effort
- −10.8 Largest Contentful Paint medium effort
- −2.6 First Contentful Paint medium effort
- −2.4 Speed Index medium effort
SEO 69 · 31 points to gain
- −31 Page is blocked from indexing low effort
Accessibility 99 · 1 points to gain
- −1.5 Heading elements are not in a sequentially-descending order 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 63 · 37 points to gain
- −29.7 Total Blocking Time medium effort
- −5 Largest Contentful Paint medium effort
- −2.5 Speed Index medium effort
SEO 69 · 31 points to gain
- −31 Page is blocked from indexing low effort
Accessibility 99 · 1 points to gain
- −1.5 Heading elements are not in a sequentially-descending order 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 | ||||||
| Chassis default demo ↗ | 56 | 69 | 99 | 63 | 69 | 99 | 2026-10-05 |
| home ↗ | 56 | 69 | 99 | 63 | 69 | 99 | 2026-10-05 |
Show this score on your site
A live badge: it always shows Chassis's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/chassis"><img src="https://themestested.com/badge/framer/chassis.svg" alt="Chassis speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.