themestestedbyWhirlwind eCommerce logo — Shopify and BigCommerce ecommerce development agencyWhirlwind eCommerce

Brün

Brün is a Webflow theme by Templates ($79). Tested on 2026-09-27 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 65 for mobile speed and 65 for desktop speed, 100/100 for SEO and 90/90 for accessibility (mobile/desktop, 0–100).

Mobile65
Brün home page on mobile
Desktop65
Brün home page on desktop

Scores

MobileDesktop
Speed6565
SEO100100
Accessibility9090
Best practices9296

Single preset · measured 2 times since 2026-09-27 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — Brün home page

Mobile

Speed 65 · 35 points to gain

  • −25 Largest Contentful Paint medium effort
  • −5.1 First Contentful Paint medium effort
  • −5 Speed Index medium effort
  • 900 ms Reduce unused JavaScript high effort
  • 150 ms Reduce unused CSS high effort

Accessibility 90 · 10 points to gain

  • −3.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −3.5 Links do not have a discernible name medium effort
  • −1.5 Heading elements are not in a sequentially-descending order medium effort
  • −1.5 Document does not have a main landmark. medium effort

Best practices 92 · 8 points to gain

  • −3.8 Displays images with incorrect aspect ratio low effort
  • −3.8 Browser errors were logged to the console medium effort

Desktop

Speed 65 · 35 points to gain

  • −15.3 Largest Contentful Paint medium effort
  • −14.1 Total Blocking Time medium effort
  • −5.1 Speed Index medium effort
  • 120 ms Reduce unused JavaScript high 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

Best practices 96 · 4 points to gain

  • −3.8 Browser errors were logged to the console medium effort

Presets and pages

Preset / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
Brün default demo ↗ 65100906510090 2026-09-27
home ↗ 65100906510090 2026-09-27

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Brün: mobile speed 65 on Themestested
<a href="https://themestested.com/theme/webflow/brun-agency-website-template"><img src="https://themestested.com/badge/webflow/brun-agency-website-template.svg" alt="Brün speed score on Themestested" height="20"></a>

Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.