Nebula Fashion
Nebula Fashion is a BigCommerce theme by epicShops ($400). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 82 for desktop speed, 87/87 for SEO and 95/92 for accessibility (mobile/desktop, 0–100).
Mobile53
Desktop84
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 63 | 82 |
| SEO | 87 | 87 |
| Accessibility | 95 | 92 |
| Best practices | 97 | 99 |
Single preset · measured 30 times since 2026-11-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Nebula-Fashion home page
Mobile
Speed 53 · 47 points to gain
- −25 Largest Contentful Paint medium effort
- −11.7 Total Blocking Time medium effort
- −6.3 Speed Index medium effort
- −4.5 First Contentful Paint medium effort
- 3.2 s Reduce unused JavaScript high effort
- 450 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 95 · 5 points to gain
- −3.2 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Best practices 96 · 4 points to gain
- −3.8 Serves images with low resolution low effort
Desktop
Speed 84 · 16 points to gain
- −9.3 Cumulative Layout Shift medium effort
- −5.8 Largest Contentful Paint medium effort
- −0.8 Speed Index medium effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 92 · 8 points to gain
- −3.3 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Nebula-Fashion default demo ↗ | 63 | 87 | 95 | 82 | 87 | 92 | 2026-11-07 |
| category ↗ | 70 | 85 | 96 | 84 | 85 | 93 | 2026-11-10 |
| home ↗ | 53 | 92 | 95 | 84 | 92 | 92 | 2026-11-07 |
| product ↗ | 65 | 85 | 94 | 78 | 85 | 91 | 2026-11-10 |
Show this score on your site
A live badge: it always shows Nebula Fashion's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/bigcommerce/nebula-fashion"><img src="https://themestested.com/badge/bigcommerce/nebula-fashion.svg" alt="Nebula Fashion speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.