Minimal Serene
Minimal Serene is a BigCommerce theme by BigMadness ($420). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 49 for mobile speed and 60 for desktop speed, 87/87 for SEO and 95/95 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 28.1 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile42
Desktop66
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 49 | 60 |
| SEO | 87 | 87 |
| Accessibility | 95 | 95 |
| Best practices | 53 | 55 |
Single preset · measured 30 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Minimal-Serene home page
Mobile
Speed 42 · 58 points to gain
- −25 Largest Contentful Paint medium effort
- −19.2 Total Blocking Time medium effort
- −10 Speed Index medium effort
- −3.5 First Contentful Paint medium effort
- 13.2 s Reduce unused JavaScript high effort
- 1.1 s Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 96 · 4 points to gain
- −3.1 `<frame>` or `<iframe>` elements do not have a title low effort
- −1.3 Document does not have a main landmark. medium effort
Best practices 54 · 46 points to gain
- −19.2 Uses deprecated APIs medium effort
- −19.2 Uses third-party cookies high effort
- −3.8 Page lacks the HTML doctype, thus triggering quirks-mode low effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Desktop
Speed 66 · 34 points to gain
- −24.3 Largest Contentful Paint medium effort
- −9.1 Speed Index medium effort
- 2.3 s Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 96 · 4 points to gain
- −3.1 `<frame>` or `<iframe>` elements do not have a title low effort
- −1.3 Document does not have a main landmark. medium effort
Best practices 54 · 46 points to gain
- −19.2 Uses deprecated APIs medium effort
- −19.2 Uses third-party cookies high effort
- −3.8 Page lacks the HTML doctype, thus triggering quirks-mode low effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Minimal-Serene default demo ↗ | 49 | 87 | 95 | 60 | 87 | 95 | 2026-11-07 |
| category ↗ | 57 | 85 | 99 | 40 | 85 | 99 | 2026-11-10 |
| home ↗ | 42 | 92 | 96 | 66 | 92 | 96 | 2026-11-07 |
| product ↗ | 48 | 85 | 91 | 73 | 85 | 91 | 2026-11-10 |
Show this score on your site
A live badge: it always shows Minimal Serene's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/bigcommerce/minimal-serene"><img src="https://themestested.com/badge/bigcommerce/minimal-serene.svg" alt="Minimal Serene speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.