Supermarket Blue
Supermarket Blue is a BigCommerce theme by Papathemes ($195). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 55 for mobile speed and 64 for desktop speed, 56/56 for SEO and 95/97 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 6.3 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile52
Desktop60
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 55 | 64 |
| SEO | 56 | 56 |
| Accessibility | 95 | 97 |
| Best practices | 92 | 92 |
Single preset · measured 30 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Supermarket-Blue home page
Mobile
Speed 52 · 48 points to gain
- −25 Largest Contentful Paint medium effort
- −10 First Contentful Paint medium effort
- −10 Speed Index medium effort
- −3 Total Blocking Time medium effort
- 13.1 s Reduce unused JavaScript high effort
- 1.6 s Reduce unused CSS high 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 97 · 3 points to gain
- −2.9 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses third-party cookies high effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Desktop
Speed 60 · 40 points to gain
- −29.4 Total Blocking Time medium effort
- −9.5 Speed Index 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 97 · 3 points to gain
- −2.8 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses third-party cookies high 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 | ||||||
| Supermarket-Blue default demo ↗ | 55 | 56 | 95 | 64 | 56 | 97 | 2026-11-07 |
| category ↗ | 55 | 61 | 95 | 72 | 61 | 97 | 2026-11-10 |
| home ↗ | 52 | 54 | 97 | 60 | 54 | 97 | 2026-11-07 |
| product ↗ | 57 | 54 | 94 | 61 | 54 | 96 | 2026-11-10 |
Show this score on your site
A live badge: it always shows Supermarket Blue's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/bigcommerce/supermarket-blue"><img src="https://themestested.com/badge/bigcommerce/supermarket-blue.svg" alt="Supermarket Blue speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.