Cascade
Cascade is a Shopify theme by Switch ($360). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 81 for mobile speed and 98 for desktop speed, 92/94 for SEO and 92/90 for accessibility (mobile/desktop, 0–100). Those are medians across its 4 tested presets; mobile speed across every tested page ranges from 68 to 95. On its marketplace it is rated 4.9 out of 5 from 100 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 81 | 98 |
| SEO | 92 | 94 |
| Accessibility | 92 | 90 |
| Best practices | 96 | 96 |
Median of 4 presets · measured 22 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Cascade home page
Mobile
Speed 84 · 16 points to gain
- −14 Largest Contentful Paint medium effort
- −1 Speed Index medium effort
- −0.8 First Contentful Paint medium effort
- 150 ms Reduce unused CSS high effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 88 · 12 points to gain
- −4.5 Image elements do not have `[alt]` attributes low effort
- −3.2 Links do not have a discernible name medium effort
- −3.2 Touch targets do not have sufficient size or spacing. medium effort
- −1.4 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
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 91 · 9 points to gain
- −4.5 Image elements do not have `[alt]` attributes low effort
- −3.2 Links do not have a discernible name medium effort
- −1.4 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 | ||||||
| Cascade default demo ↗ | 81 | 92 | 91 | 98 | 92 | 90 | 2026-09-11 |
| category ↗ | 89 | 92 | 92 | 99 | 92 | 95 | 2026-09-13 |
| home ↗ | 84 | 85 | 88 | 100 | 85 | 91 | 2026-09-11 |
| product ↗ | 70 | 100 | 92 | 95 | 100 | 84 | 2026-09-12 |
| Phase demo ↗ | 84 | 90 | 91 | 98 | 96 | 90 | 2026-09-11 |
| category ↗ | 95 | 92 | 92 | 99 | 92 | 95 | 2026-09-12 |
| home ↗ | 88 | 77 | 88 | – | – | – | 2026-09-11 |
| product ↗ | 68 | 100 | 92 | 97 | 100 | 84 | 2026-09-12 |
| Sequence demo ↗ | 76 | 95 | 92 | 98 | 96 | 90 | 2026-09-11 |
| category ↗ | 90 | 92 | 92 | 99 | 92 | 95 | 2026-09-12 |
| home ↗ | 68 | 92 | 92 | – | – | – | 2026-09-11 |
| product ↗ | 70 | 100 | 92 | 96 | 100 | 84 | 2026-09-12 |
| Swell demo ↗ | 81 | 92 | 92 | 99 | 92 | 89 | 2026-09-11 |
| category ↗ | 79 | 92 | 92 | 99 | 92 | 95 | 2026-09-12 |
| home ↗ | 88 | 85 | 91 | 99 | 85 | 87 | 2026-09-11 |
| product ↗ | 75 | 100 | 92 | 98 | 100 | 84 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Cascade's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/cascade"><img src="https://themestested.com/badge/shopify/cascade.svg" alt="Cascade speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.