Diana
Diana is a Ghost theme by trexthemes ($89). Tested on 2026-11-08 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 59 for mobile speed and 76 for desktop speed, 100/100 for SEO and 81/81 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 11.4 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile59

Desktop76

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 59 | 76 |
| SEO | 100 | 100 |
| Accessibility | 81 | 81 |
| Best practices | 96 | 96 |
Single preset · measured 8 times since 2026-11-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Diana home page
Mobile
Speed 59 · 41 points to gain
- −25 Largest Contentful Paint medium effort
- −9.2 First Contentful Paint medium effort
- −6.6 Speed Index medium effort
- 1.1 s Reduce unused JavaScript high effort
Accessibility 81 · 19 points to gain
- −7.9 Buttons do not have an accessible name medium effort
- −5.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −5.6 Links do not have a discernible name medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 76 · 24 points to gain
- −23 Largest Contentful Paint medium effort
- −1.2 Speed Index medium effort
- 180 ms Reduce unused JavaScript high effort
Accessibility 81 · 19 points to gain
- −7.9 Buttons do not have an accessible name medium effort
- −5.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −5.6 Links do not have a discernible name 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 | ||||||
| Diana default demo ↗ | 59 | 100 | 81 | 76 | 100 | 81 | 2026-11-07 |
| home ↗ | 59 | 100 | 81 | 76 | 100 | 81 | 2026-11-07 |