Clariss Electronics
Clariss Electronics is a BigCommerce theme by Gordonbyte ($99). Tested on 2026-11-03 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 71 for mobile speed and 81 for desktop speed, 85/85 for SEO and 89/90 for accessibility (mobile/desktop, 0–100).
Mobile64

Desktop98

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 71 | 81 |
| SEO | 85 | 85 |
| Accessibility | 89 | 90 |
| Best practices | 96 | 97 |
Single preset · measured 34 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Clariss-Electronics home page
Mobile
Speed 64 · 36 points to gain
- −23.5 Largest Contentful Paint medium effort
- −9.8 Cumulative Layout Shift medium effort
- −0.9 Speed Index medium effort
- −0.8 First Contentful Paint medium effort
- −0.6 Total Blocking Time medium effort
- 300 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links are not crawlable medium effort
Accessibility 85 · 15 points to gain
- −4.4 Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. medium effort
- −3.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.1 Links do not have a discernible name medium effort
- −3.1 Touch targets do not have sufficient size or spacing. medium effort
- −1.3 Heading elements are not in a sequentially-descending order medium effort
Best practices 92 · 8 points to gain
- −3.8 Serves images with low resolution low effort
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 98 · 2 points to gain
- −1.7 Largest Contentful Paint medium effort
- −0.5 Cumulative Layout Shift medium effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links are not crawlable medium effort
Accessibility 85 · 15 points to gain
- −4.4 `[aria-*]` attributes do not have valid values medium effort
- −3.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.1 Links do not have a discernible name medium effort
- −3.1 Touch targets do not have sufficient size or spacing. medium effort
- −1.3 Heading elements are not in a sequentially-descending order medium effort
Best practices 96 · 4 points to gain
- −3.8 Displays images with incorrect aspect ratio low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Clariss-Electronics default demo ↗ | 71 | 85 | 89 | 81 | 85 | 90 | 2026-11-03 |
| category ↗ | 83 | 85 | 91 | 90 | 85 | 93 | 2026-11-03 |
| home ↗ | 64 | 85 | 85 | 98 | 85 | 85 | 2026-11-03 |
| product ↗ | 66 | 85 | 91 | 56 | 85 | 91 | 2026-11-03 |