Nebula Eco
Nebula Eco is a BigCommerce theme by epicShops ($400). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 53 for mobile speed and 81 for desktop speed, 92/92 for SEO and 94/93 for accessibility (mobile/desktop, 0–100).
Mobile53
Desktop81
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 53 | 81 |
| SEO | 92 | 92 |
| Accessibility | 94 | 93 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Nebula-Eco home page
Mobile
Speed 53 · 47 points to gain
- −25 Largest Contentful Paint medium effort
- −10 First Contentful Paint medium effort
- −9.7 Speed Index medium effort
- −2.1 Total Blocking Time medium effort
- 3.0 s Reduce unused JavaScript high effort
- 600 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 94 · 6 points to gain
- −3.2 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.2 Links do not have a discernible name medium effort
Desktop
Speed 81 · 19 points to gain
- −14.3 Cumulative Layout Shift medium effort
- −3.5 Speed Index medium effort
- −0.8 Largest Contentful Paint medium effort
- 120 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 93 · 7 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
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Nebula-Eco default demo ↗ | 53 | 92 | 94 | 81 | 92 | 93 | 2026-09-12 |
| home ↗ | 53 | 92 | 94 | 81 | 92 | 93 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Nebula Eco's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/bigcommerce/nebula-eco"><img src="https://themestested.com/badge/bigcommerce/nebula-eco.svg" alt="Nebula Eco speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.