Parallax
Parallax is a Shopify theme by Out of the Sandbox ($260). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 65 for mobile speed and 90 for desktop speed, 95/95 for SEO and 90/88 for accessibility (mobile/desktop, 0–100). Those are medians across its 4 tested presets; mobile speed across every tested page ranges from 50 to 70. On its marketplace it is rated 4.9 out of 5 from 249 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 65 | 90 |
| SEO | 95 | 95 |
| Accessibility | 90 | 88 |
| Best practices | 94 | 96 |
Median of 4 presets · measured 24 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Parallax home page
Mobile
Speed 70 · 30 points to gain
- −25 Largest Contentful Paint medium effort
- −2.4 First Contentful Paint medium effort
- −1.5 Total Blocking Time medium effort
- −1.5 Speed Index medium effort
- 1.1 s Reduce unused JavaScript high effort
- 300 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links do not have descriptive text low effort
Accessibility 93 · 7 points to gain
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −1.6 Heading elements are not in a sequentially-descending order medium effort
- −1.6 Document does not have a main landmark. medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 81 · 19 points to gain
- −12.8 Largest Contentful Paint medium effort
- −4.8 Total Blocking Time medium effort
- −1.1 Speed Index medium effort
- 160 ms Reduce unused JavaScript high effort
- 120 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links do not have descriptive text low effort
Accessibility 93 · 7 points to gain
- −3.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −1.6 Heading elements are not in a sequentially-descending order medium effort
- −1.6 Document does not have a main landmark. medium effort
Best practices 96 · 4 points to gain
- −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 | ||||||
| Canyon demo ↗ | 58 | 92 | 87 | 83 | 92 | 86 | 2026-09-11 |
| category ↗ | 56 | 92 | 93 | 91 | 92 | 90 | 2026-09-12 |
| home ↗ | 50 | 85 | 82 | 62 | 85 | 82 | 2026-09-11 |
| product ↗ | 68 | 100 | 87 | 95 | 100 | 87 | 2026-09-12 |
| Dash demo ↗ | 67 | 95 | 90 | 88 | 95 | 87 | 2026-09-11 |
| category ↗ | 65 | 92 | 93 | 94 | 92 | 90 | 2026-09-12 |
| home ↗ | 68 | 92 | 89 | 76 | 92 | 85 | 2026-09-11 |
| product ↗ | 68 | 100 | 87 | 93 | 100 | 87 | 2026-09-12 |
| Parallax default demo ↗ | 66 | 95 | 91 | 91 | 95 | 90 | 2026-09-11 |
| category ↗ | 58 | 92 | 93 | 95 | 92 | 90 | 2026-09-12 |
| home ↗ | 70 | 92 | 93 | 81 | 92 | 93 | 2026-09-11 |
| product ↗ | 70 | 100 | 87 | 97 | 100 | 87 | 2026-09-12 |
| Taproom demo ↗ | 63 | 95 | 90 | 92 | 95 | 89 | 2026-09-11 |
| category ↗ | 62 | 92 | 93 | 93 | 92 | 90 | 2026-09-12 |
| home ↗ | 60 | 92 | 89 | 89 | 92 | 89 | 2026-09-11 |
| product ↗ | 68 | 100 | 87 | 95 | 100 | 87 | 2026-09-12 |
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<a href="https://themestested.com/theme/shopify/parallax"><img src="https://themestested.com/badge/shopify/parallax.svg" alt="Parallax speed score on Themestested" height="20"></a>
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