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Terra Bright theme preview

Terra Bright

Terra Bright is a BigCommerce theme by epicShops ($300). Tested on 2026-11-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 92 for desktop speed, 85/85 for SEO and 92/88 for accessibility (mobile/desktop, 0–100).

Mobile48
Terra Bright home page on mobile
Desktop98
Terra Bright home page on desktop

Scores

MobileDesktop
Speed6392
SEO8585
Accessibility9288
Best practices9799

Single preset · measured 32 times since 2026-11-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — Terra-Bright home page

Mobile

Speed 48 · 52 points to gain

  • −25 Largest Contentful Paint medium effort
  • −24 Cumulative Layout Shift medium effort
  • −2.3 Speed Index medium effort
  • −0.8 First Contentful Paint medium effort
  • 450 ms Reduce unused CSS high effort
  • 150 ms Reduce unused JavaScript high effort

SEO 85 · 15 points to gain

  • −7.7 Links do not have descriptive text low effort
  • −7.7 Links are not crawlable medium effort

Accessibility 91 · 9 points to gain

  • −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −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 Serves images with low resolution low effort

Desktop

Speed 98 · 2 points to gain

  • −2 Largest Contentful Paint medium effort
  • 100 ms Reduce unused CSS high effort

SEO 85 · 15 points to gain

  • −7.7 Links do not have descriptive text low effort
  • −7.7 Links are not crawlable medium effort

Accessibility 86 · 14 points to gain

  • −4.7 Buttons do not have an accessible name medium effort
  • −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −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

Presets and pages

Preset / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
Terra-Bright default demo ↗ 638592928588 2026-10-31
category ↗ 828592988588 2026-11-07
home ↗ 488591988586 2026-10-31
product ↗ 598592798591 2026-11-07

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Terra Bright: mobile speed 63 on Themestested
<a href="https://themestested.com/theme/bigcommerce/terra-bright"><img src="https://themestested.com/badge/bigcommerce/terra-bright.svg" alt="Terra Bright speed score on Themestested" height="20"></a>

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