Phantom Shop
Phantom Shop is a Shopify theme by Diabolique ($46). Tested on 2026-10-15 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 77 for mobile speed and 99 for desktop speed, 90/90 for SEO and 69/69 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 4.4 out of 5 from 9 reviews.
Mobile73

Desktop98

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 77 | 99 |
| SEO | 90 | 90 |
| Accessibility | 69 | 69 |
| Best practices | 74 | 78 |
Single preset · measured 12 times since 2026-10-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Phantom Shop home page
Mobile
Speed 73 · 27 points to gain
- −20.3 Largest Contentful Paint medium effort
- −4.3 Speed Index medium effort
- −2.7 First Contentful Paint medium effort
- 630 ms Avoid multiple page redirects low effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links are not crawlable medium effort
Accessibility 72 · 28 points to gain
- −8.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −8.1 Links rely on color to be distinguishable. medium effort
- −8.1 Links do not have a discernible name medium effort
- −3.5 Document does not have a main landmark. medium effort
Best practices 74 · 26 points to gain
- −18.5 Does not use HTTPS outside the theme
- −3.7 Serves images with low resolution low effort
- −3.7 Browser errors were logged to the console medium effort
Desktop
Speed 98 · 2 points to gain
- −1.5 Largest Contentful Paint medium effort
- −0.8 Speed Index medium effort
- 190 ms Avoid multiple page redirects low effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links are not crawlable medium effort
Accessibility 72 · 28 points to gain
- −8.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −8.1 Links rely on color to be distinguishable. medium effort
- −8.1 Links do not have a discernible name medium effort
- −3.5 Document does not have a main landmark. medium effort
Best practices 78 · 22 points to gain
- −18.5 Does not use HTTPS outside the theme
- −3.7 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Phantom Shop default demo ↗ | 77 | 90 | 69 | 99 | 90 | 69 | 2026-10-12 |
| category ↗ | 80 | 92 | 72 | 99 | 92 | 72 | 2026-10-15 |
| home ↗ | 73 | 85 | 72 | 98 | 85 | 72 | 2026-10-12 |
| product ↗ | 79 | 92 | 62 | 100 | 92 | 62 | 2026-10-15 |