ARCUS
ARCUS is a Webflow theme by Templates ($49). Tested on 2026-09-26 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 67 for mobile speed and 84 for desktop speed, 91/91 for SEO and 95/94 for accessibility (mobile/desktop, 0–100).
Mobile67
Desktop84
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 67 | 84 |
| SEO | 91 | 91 |
| Accessibility | 95 | 94 |
| Best practices | 96 | 96 |
Single preset · measured 2 times since 2026-09-26 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — ARCUS home page
Mobile
Speed 67 · 33 points to gain
- −24.3 Largest Contentful Paint medium effort
- −5.7 Speed Index medium effort
- −2 First Contentful Paint medium effort
- −1.2 Total Blocking Time medium effort
- 1.1 s Reduce unused JavaScript high effort
- 300 ms Reduce unused CSS high effort
SEO 91 · 9 points to gain
- −9.1 Document does not have a meta description low effort
Accessibility 95 · 5 points to gain
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 84 · 16 points to gain
- −6.1 Speed Index medium effort
- −5.5 Largest Contentful Paint medium effort
- −3.3 Total Blocking Time medium effort
- −1.4 First Contentful Paint medium effort
- 240 ms Reduce unused JavaScript high effort
SEO 91 · 9 points to gain
- −9.1 Document does not have a meta description low effort
Accessibility 94 · 6 points to gain
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
- −1.4 Document does not have a main landmark. medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| ARCUS default demo ↗ | 67 | 91 | 95 | 84 | 91 | 94 | 2026-09-26 |
| home ↗ | 67 | 91 | 95 | 84 | 91 | 94 | 2026-09-26 |
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<a href="https://themestested.com/theme/webflow/arcus-architecture-website-template"><img src="https://themestested.com/badge/webflow/arcus-architecture-website-template.svg" alt="ARCUS speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.