Etheryx
Etheryx is a Shopify theme by OpenThinking ($370). Tested on 2026-10-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 82 for mobile speed and 94 for desktop speed, 100/100 for SEO and 90/93 for accessibility (mobile/desktop, 0–100). Those are medians across its 3 tested presets; mobile speed across every tested page ranges from 49 to 95. On its marketplace it is rated 5.0 out of 5 from 9 reviews.
Mobile

Desktop53

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 82 | 94 |
| SEO | 100 | 100 |
| Accessibility | 90 | 93 |
| Best practices | 95 | 95 |
Median of 3 presets · measured 36 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Etheryx home page
Mobile
Accessibility 88 · 12 points to gain
- −3 Elements with `role="dialog"` or `role="alertdialog"` do not have accessible names. medium effort
- −3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3 Links do not have a discernible name medium effort
- −3 Touch targets do not have sufficient size or spacing. medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 53 · 47 points to gain
- −30 Total Blocking Time medium effort
- −9.4 Speed Index medium effort
- −7.8 Largest Contentful Paint medium effort
Accessibility 88 · 12 points to gain
- −3 Elements with `role="dialog"` or `role="alertdialog"` do not have accessible names. medium effort
- −3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3 Links do not have a discernible name medium effort
- −3 Touch targets do not have sufficient size or spacing. medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Ethereal demo ↗ | 82 | 100 | 89 | 94 | 100 | 93 | 2026-10-12 |
| category ↗ | 74 | 100 | 89 | 91 | 100 | 92 | 2026-10-12 |
| home ↗ | 78 | 100 | 91 | 97 | 100 | 94 | 2026-10-12 |
| product ↗ | 94 | 100 | 86 | 95 | 100 | 92 | 2026-10-12 |
| Ethernity demo ↗ | 83 | 97 | 95 | 97 | 97 | 95 | 2026-10-12 |
| category ↗ | 82 | 100 | 96 | 98 | 100 | 96 | 2026-10-12 |
| home ↗ | 95 | 92 | 93 | 99 | 92 | 93 | 2026-10-12 |
| product ↗ | 73 | 100 | 95 | 95 | 100 | 95 | 2026-10-12 |
| Etheryx default demo ↗ | 50 | 100 | 90 | 63 | 100 | 91 | 2026-10-12 |
| category ↗ | 50 | 100 | 92 | 71 | 100 | 92 | 2026-10-12 |
| home ↗ | – | 100 | 88 | 53 | 100 | 88 | 2026-10-12 |
| product ↗ | 49 | 100 | 89 | 64 | 100 | 92 | 2026-10-12 |