MARS.SI
MARS.SI is a Framer theme by John Nicholson (Free). Tested on 2026-10-15 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 73 for mobile speed and 93 for desktop speed, 92/92 for SEO and 89/91 for accessibility (mobile/desktop, 0–100).
Mobile73
Desktop93
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 73 | 93 |
| SEO | 92 | 92 |
| Accessibility | 89 | 91 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-10-15 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — MARS.SI home page
Mobile
Speed 73 · 27 points to gain
- −24 Largest Contentful Paint medium effort
- −2.6 First Contentful Paint medium effort
- −0.8 Speed Index medium effort
- 450 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Links do not have descriptive text low effort
Accessibility 89 · 11 points to gain
- −4.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.3 `<html>` element does not have a `[lang]` attribute low effort
- −1.9 Document does not have a main landmark. medium effort
Desktop
Speed 93 · 7 points to gain
- −6 Largest Contentful Paint medium effort
- −0.6 Speed Index medium effort
SEO 92 · 8 points to gain
- −7.7 Links do not have descriptive text low effort
Accessibility 91 · 9 points to gain
- −4.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.5 `<html>` element does not have a `[lang]` attribute low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| MARS.SI default demo ↗ | 73 | 92 | 89 | 93 | 92 | 91 | 2026-10-15 |
| home ↗ | 73 | 92 | 89 | 93 | 92 | 91 | 2026-10-15 |
Show this score on your site
A live badge: it always shows MARS.SI's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/framer/mars-si"><img src="https://themestested.com/badge/framer/mars-si.svg" alt="MARS.SI speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.