Gecko 6.0
Listed as "Gecko 6.0 - Responsive Shopify Theme - RTL support"
Gecko 6.0 is a Shopify theme by The4 ($99). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 88 for desktop speed, 100/100 for SEO and 77/78 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 5.0 out of 5 from 876 reviews.
Mobile47
Desktop72
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 63 | 88 |
| SEO | 100 | 100 |
| Accessibility | 77 | 78 |
| Best practices | 99 | 99 |
Single preset · measured 6 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Gecko 6.0 - Responsive Shopify Theme - RTL support home page
Mobile
Speed 47 · 53 points to gain
- −22 Cumulative Layout Shift medium effort
- −20 Largest Contentful Paint medium effort
- −7.8 First Contentful Paint medium effort
- −3.1 Speed Index medium effort
- 160 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
Accessibility 80 · 20 points to gain
- −4.5 Buttons do not have an accessible name medium effort
- −4.5 `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. low effort
- −3.2 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.2 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.2 Links do not have a discernible name medium effort
- −1.4 Document does not have a main landmark. medium effort
Desktop
Speed 72 · 28 points to gain
- −23.8 Cumulative Layout Shift medium effort
- −2.7 Largest Contentful Paint medium effort
- −1.7 Speed Index medium effort
Accessibility 83 · 17 points to gain
- −4.5 Buttons do not have an accessible name medium effort
- −4.5 `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. low effort
- −3.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.1 Links do not have a discernible name medium effort
- −1.3 Document does not have a main landmark. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Gecko 6.0 - Responsive Shopify Theme - RTL support default demo ↗ | 63 | 100 | 77 | 88 | 100 | 78 | 2026-09-12 |
| category ↗ | 77 | 100 | 72 | 96 | 100 | 72 | 2026-09-12 |
| home ↗ | 47 | 100 | 80 | 72 | 100 | 83 | 2026-09-12 |
| product ↗ | 66 | 100 | 78 | 95 | 100 | 78 | 2026-09-12 |
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<a href="https://themestested.com/theme/shopify/tf-gecko-responsive-shopify-theme-21398578"><img src="https://themestested.com/badge/shopify/tf-gecko-responsive-shopify-theme-21398578.svg" alt="Gecko 6.0 speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.