Jacobsen
Jacobsen is a Astro theme by Lexington Themes (Paid). Tested on 2026-10-17 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 86 for mobile speed and 100 for desktop speed, 66/66 for SEO and 94/95 for accessibility (mobile/desktop, 0–100).
Mobile86
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 86 | 100 |
| SEO | 66 | 66 |
| Accessibility | 94 | 95 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-10-17 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Jacobsen home page
Mobile
Speed 86 · 14 points to gain
- −10.3 Largest Contentful Paint medium effort
- −2.4 First Contentful Paint medium effort
- −1.1 Speed Index medium effort
- 150 ms Reduce unused JavaScript high effort
SEO 66 · 34 points to gain
- −33.6 Page is blocked from indexing low effort
Accessibility 94 · 6 points to gain
- −5.7 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Desktop
SEO 66 · 34 points to gain
- −33.6 Page is blocked from indexing low effort
Accessibility 95 · 5 points to gain
- −4.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Jacobsen default demo ↗ | 86 | 66 | 94 | 100 | 66 | 95 | 2026-10-17 |
| home ↗ | 86 | 66 | 94 | 100 | 66 | 95 | 2026-10-17 |
Show this score on your site
A live badge: it always shows Jacobsen's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/jacobsen"><img src="https://themestested.com/badge/astro/jacobsen.svg" alt="Jacobsen speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.