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Capacity Clean theme preview

Capacity Clean

Capacity Clean is a BigCommerce theme by BigCommerce ($225). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 56 for mobile speed and 76 for desktop speed, 58/58 for SEO and 69/65 for accessibility (mobile/desktop, 0–100).

Mobile80
Capacity Clean home page on mobile
Desktop88
Capacity Clean home page on desktop

Scores

MobileDesktop
Speed5676
SEO5858
Accessibility6965
Best practices7979

Single preset · measured 4 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — Capacity-Clean home page

Mobile

Speed 80 · 20 points to gain

  • −11 Cumulative Layout Shift medium effort
  • −3.8 Largest Contentful Paint medium effort
  • −3.6 First Contentful Paint medium effort
  • −0.6 Total Blocking Time medium effort
  • −0.6 Speed Index medium effort
  • 150 ms Reduce unused CSS high effort

SEO 54 · 46 points to gain

  • −31 Page is blocked from indexing low effort
  • −7.7 Document does not have a meta description low effort
  • −7.7 Links do not have descriptive text low effort

Accessibility 76 · 24 points to gain

  • −5 Buttons do not have an accessible name medium effort
  • −5 `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. low effort
  • −3.5 `[aria-hidden="true"]` elements contain focusable descendents medium effort
  • −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
  • −3.5 Touch targets do not have sufficient size or spacing. medium effort

Best practices 81 · 19 points to gain

  • −19.2 Uses deprecated APIs medium effort

Desktop

Speed 88 · 12 points to gain

  • −5.8 Largest Contentful Paint medium effort
  • −4.3 Cumulative Layout Shift medium effort
  • −1.1 Speed Index medium effort
  • −0.6 Total Blocking Time medium effort
  • 480 ms Minify JavaScript low effort
  • 120 ms Reduce unused JavaScript high effort

SEO 54 · 46 points to gain

  • −31 Page is blocked from indexing low effort
  • −7.7 Document does not have a meta description low effort
  • −7.7 Links do not have descriptive text low effort

Accessibility 71 · 29 points to gain

  • −6.5 Buttons do not have an accessible name medium effort
  • −6.5 `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. low effort
  • −6.5 Select elements do not have associated label elements. medium effort
  • −4.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −4.5 Links do not have a discernible name medium effort

Best practices 81 · 19 points to gain

  • −19.2 Uses deprecated APIs medium effort

Presets and pages

Preset / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
Capacity-Clean default demo ↗ 565869765865 2026-09-12
home 805476885471 2026-09-12
product 326162636159 2026-09-12

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Capacity Clean: mobile speed 56 on Themestested
<a href="https://themestested.com/theme/bigcommerce/capacity-clean"><img src="https://themestested.com/badge/bigcommerce/capacity-clean.svg" alt="Capacity Clean speed score on Themestested" height="20"></a>

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