Wonder
Wonder is a Shopify theme by UX Experts ($390). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 69 for mobile speed and 88 for desktop speed, 95/97 for SEO and 95/94 for accessibility (mobile/desktop, 0–100). Those are medians across its 5 tested presets; mobile speed across every tested page ranges from 63 to 85. On its marketplace it is rated 5.0 out of 5 from 145 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 69 | 88 |
| SEO | 95 | 97 |
| Accessibility | 95 | 94 |
| Best practices | 96 | 96 |
Median of 5 presets · measured 30 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Wonder home page
Mobile
Speed 74 · 26 points to gain
- −23.5 Largest Contentful Paint medium effort
- −1.5 First Contentful Paint medium effort
- −1.4 Speed Index medium effort
- 300 ms Reduce unused CSS high effort
Accessibility 97 · 3 points to gain
- −2.9 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 95 · 5 points to gain
- −2.5 Largest Contentful Paint medium effort
- −1.7 Cumulative Layout Shift medium effort
- −0.5 Speed Index medium effort
Accessibility 97 · 3 points to gain
- −2.9 Background and foreground colors do not have a sufficient contrast ratio. 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 | ||||||
| Nook demo ↗ | 65 | 95 | 94 | 88 | 97 | 94 | 2026-09-11 |
| category ↗ | 65 | 92 | 96 | 75 | 100 | 97 | 2026-09-12 |
| home ↗ | 67 | 100 | 94 | 93 | 100 | 94 | 2026-09-11 |
| product ↗ | 64 | 92 | 93 | 95 | 92 | 90 | 2026-09-12 |
| Petit demo ↗ | 72 | 95 | 95 | 92 | 97 | 94 | 2026-09-11 |
| category ↗ | 65 | 92 | 96 | 89 | 100 | 97 | 2026-09-12 |
| home ↗ | 85 | 100 | 97 | 99 | 100 | 94 | 2026-09-11 |
| product ↗ | 67 | 92 | 93 | 88 | 92 | 90 | 2026-09-12 |
| Root demo ↗ | 69 | 95 | 95 | 82 | 97 | 95 | 2026-09-11 |
| category ↗ | 65 | 92 | 96 | 75 | 100 | 97 | 2026-09-12 |
| home ↗ | 69 | 100 | 97 | 74 | 100 | 97 | 2026-09-11 |
| product ↗ | 73 | 92 | 93 | 96 | 92 | 90 | 2026-09-12 |
| Velour demo ↗ | 67 | 95 | 94 | 88 | 97 | 94 | 2026-09-11 |
| category ↗ | 63 | 92 | 96 | 97 | 100 | 97 | 2026-09-12 |
| home ↗ | 70 | 100 | 94 | 79 | 100 | 94 | 2026-09-11 |
| product ↗ | 68 | 92 | 93 | 88 | 92 | 90 | 2026-09-12 |
| Wonder default demo ↗ | 74 | 95 | 95 | 96 | 97 | 95 | 2026-09-11 |
| category ↗ | 73 | 92 | 96 | 97 | 100 | 97 | 2026-09-12 |
| home ↗ | 74 | 100 | 97 | 95 | 100 | 97 | 2026-09-11 |
| product ↗ | 74 | 92 | 93 | 96 | 92 | 90 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Wonder's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/wonder"><img src="https://themestested.com/badge/shopify/wonder.svg" alt="Wonder speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.