ST Oxygen
Listed as "ST Oxygen - Shopify Theme"
ST Oxygen is a Shopify theme by Axis-Themes ($56). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 62 for mobile speed and 88 for desktop speed, 87/84 for SEO and 86/84 for accessibility (mobile/desktop, 0–100).
Mobile66
Desktop84
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 62 | 88 |
| SEO | 87 | 84 |
| Accessibility | 86 | 84 |
| Best practices | 73 | 77 |
Single preset · measured 6 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — ST Oxygen - Shopify Theme home page
Mobile
Speed 66 · 34 points to gain
- −25 Largest Contentful Paint medium effort
- −5.1 First Contentful Paint medium effort
- −4.1 Speed Index medium effort
- 300 ms Reduce unused JavaScript high effort
SEO 77 · 23 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links do not have descriptive text low effort
- −7.7 Links are not crawlable medium effort
Accessibility 91 · 9 points to gain
- −3.7 `<html>` element does not have a `[lang]` attribute low effort
- −3.7 Links do not have a discernible name medium effort
- −1.6 Heading elements are not in a sequentially-descending order medium effort
Best practices 73 · 27 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Serves images with low resolution low effort
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 84 · 16 points to gain
- −12 Largest Contentful Paint medium effort
- −3 Speed Index medium effort
- −0.5 First Contentful Paint medium effort
- 160 ms Reduce unused JavaScript high effort
SEO 69 · 31 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links do not have descriptive text low effort
- −7.7 Links are not crawlable medium effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 86 · 14 points to gain
- −5.3 Image elements do not have `[alt]` attributes low effort
- −3.7 `<html>` element does not have a `[lang]` attribute low effort
- −3.7 Links do not have a discernible name medium effort
- −1.6 Heading elements are not in a sequentially-descending order 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 | ||||||
| ST Oxygen - Shopify Theme default demo ↗ | 62 | 87 | 86 | 88 | 84 | 84 | 2026-09-12 |
| category ↗ | 54 | 92 | 88 | 91 | 92 | 87 | 2026-09-12 |
| home ↗ | 66 | 77 | 91 | 84 | 69 | 86 | 2026-09-12 |
| product ↗ | 66 | 92 | 79 | 88 | 92 | 79 | 2026-09-12 |
Show this score on your site
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<a href="https://themestested.com/theme/shopify/tf-st-oxygen-shopify-theme-16602187"><img src="https://themestested.com/badge/shopify/tf-st-oxygen-shopify-theme-16602187.svg" alt="ST Oxygen speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.