Capacity Bright
Capacity Bright 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 54 for mobile speed and 89 for desktop speed, 59/59 for SEO and 70/68 for accessibility (mobile/desktop, 0–100).
Mobile71
Desktop96
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 54 | 89 |
| SEO | 59 | 59 |
| Accessibility | 70 | 68 |
| Best practices | 80 | 80 |
Single preset · measured 6 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Capacity-Bright home page
Mobile
Speed 71 · 29 points to gain
- −20.8 Cumulative Layout Shift medium effort
- −3.5 First Contentful Paint medium effort
- −3.3 Largest Contentful Paint medium effort
- −0.9 Total Blocking Time medium 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 96 · 4 points to gain
- −2 Speed Index medium effort
- −1.2 Total Blocking Time medium effort
- −0.8 Largest Contentful Paint medium 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 / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Capacity-Bright default demo ↗ | 54 | 59 | 70 | 89 | 59 | 68 | 2026-09-12 |
| category ↗ | 54 | 61 | 71 | 97 | 61 | 71 | 2026-09-12 |
| home ↗ | 71 | 54 | 76 | 96 | 54 | 71 | 2026-09-12 |
| product ↗ | 38 | 61 | 62 | 73 | 61 | 62 | 2026-09-12 |
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<a href="https://themestested.com/theme/bigcommerce/capacity-bright"><img src="https://themestested.com/badge/bigcommerce/capacity-bright.svg" alt="Capacity Bright speed score on Themestested" height="20"></a>
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