Vault Bright
Vault Bright is a BigCommerce theme by Lonestar Templates (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 75 for mobile speed and 95 for desktop speed, 77/77 for SEO and 71/71 for accessibility (mobile/desktop, 0–100).
Mobile71
Desktop97
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 75 | 95 |
| SEO | 77 | 77 |
| Accessibility | 71 | 71 |
| Best practices | 99 | 99 |
Single preset · measured 6 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Vault-Bright home page
Mobile
Speed 71 · 29 points to gain
- −18.3 Largest Contentful Paint medium effort
- −6.2 First Contentful Paint medium effort
- −2.5 Cumulative Layout Shift medium effort
- −1.7 Speed Index medium effort
- 600 ms Reduce unused JavaScript high effort
- 300 ms Reduce unused CSS high effort
SEO 77 · 23 points to gain
- −7.7 Links do not have descriptive text low effort
- −7.7 Links are not crawlable medium effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 75 · 25 points to gain
- −5 Image elements do not have `[alt]` attributes 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 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
- −3.5 List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements. low effort
Desktop
Speed 97 · 3 points to gain
- −1.3 Speed Index medium effort
- −0.8 Largest Contentful Paint medium effort
SEO 77 · 23 points to gain
- −7.7 Links do not have descriptive text low effort
- −7.7 Links are not crawlable medium effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 75 · 25 points to gain
- −5 Image elements do not have `[alt]` attributes 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 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
- −3.5 List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements. low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Vault-Bright default demo ↗ | 75 | 77 | 71 | 95 | 77 | 71 | 2026-09-12 |
| category ↗ | 90 | 77 | 76 | 99 | 77 | 76 | 2026-09-12 |
| home ↗ | 71 | 77 | 75 | 97 | 77 | 75 | 2026-09-12 |
| product ↗ | 65 | 77 | 61 | 90 | 77 | 61 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Vault Bright's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/bigcommerce/vault-bright"><img src="https://themestested.com/badge/bigcommerce/vault-bright.svg" alt="Vault Bright speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.