Helix
Helix is a Shopify theme by ModuTheme ($250). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 73 for mobile speed and 90 for desktop speed, 100/100 for SEO and 100/100 for accessibility (mobile/desktop, 0–100). Those are medians across its 4 tested presets; mobile speed across every tested page ranges from 57 to 78.
Mobile68
Desktop72
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 73 | 90 |
| SEO | 100 | 100 |
| Accessibility | 100 | 100 |
| Best practices | 93 | 96 |
Median of 4 presets · measured 16 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Helix home page
Mobile
Speed 68 · 32 points to gain
- −21 Largest Contentful Paint medium effort
- −5.8 Speed Index medium effort
- −4.8 First Contentful Paint medium effort
- 150 ms Reduce unused CSS high effort
Best practices 92 · 8 points to gain
- −3.8 Browser errors were logged to the console medium effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Desktop
Speed 72 · 28 points to gain
- −16.5 Total Blocking Time medium effort
- −9.8 Speed Index medium effort
- −1.5 Largest Contentful Paint 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 | ||||||
| Elvara demo ↗ | 73 | 100 | 100 | 91 | 100 | 100 | 2026-09-12 |
| category ↗ | 76 | 100 | 100 | 95 | 100 | 100 | 2026-09-12 |
| home ↗ | 70 | 100 | 100 | 87 | 100 | 100 | 2026-09-12 |
| Helix default demo ↗ | 73 | 100 | 100 | 83 | 100 | 100 | 2026-09-11 |
| category ↗ | 78 | 100 | 100 | 94 | 100 | 100 | 2026-09-13 |
| home ↗ | 68 | 100 | 100 | 72 | 100 | 100 | 2026-09-11 |
| Marlow demo ↗ | 76 | 100 | 100 | 96 | 100 | 100 | 2026-09-12 |
| category ↗ | 78 | 100 | 100 | 95 | 100 | 100 | 2026-09-13 |
| home ↗ | 74 | 100 | 100 | 96 | 100 | 100 | 2026-09-12 |
| Selene demo ↗ | 66 | 100 | 99 | 88 | 100 | 99 | 2026-09-12 |
| category ↗ | 75 | 100 | 100 | 95 | 100 | 100 | 2026-09-12 |
| home ↗ | 57 | 100 | 97 | 81 | 100 | 97 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Helix's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/helix"><img src="https://themestested.com/badge/shopify/helix.svg" alt="Helix speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.