Empire
Empire is a Shopify theme by Pixel Union ($360). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 74 for desktop speed, 89/89 for SEO and 90/85 for accessibility (mobile/desktop, 0–100). Those are medians across its 5 tested presets; mobile speed across every tested page ranges from 53 to 80. On its marketplace it is rated 4.2 out of 5 from 480 reviews.
Mobile73

Desktop75

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 63 | 74 |
| SEO | 89 | 89 |
| Accessibility | 90 | 85 |
| Best practices | 98 | 98 |
Median of 5 presets · measured 158 times since 2026-11-06 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Circuit home page
Mobile
Speed 73 · 27 points to gain
- −19.8 Largest Contentful Paint medium effort
- −5.1 Total Blocking Time medium effort
- −1.7 Speed Index medium effort
- 450 ms Reduce unused CSS high effort
SEO 85 · 15 points to gain
- −7.7 Links do not have descriptive text low effort
- −7.7 Links are not crawlable medium effort
Accessibility 87 · 13 points to gain
- −3.2 `button`, `link`, and `menuitem` elements do not have accessible names. 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
- −3.2 Touch targets do not have sufficient size or spacing. medium effort
Desktop
Speed 75 · 25 points to gain
- −20.7 Total Blocking Time medium effort
- −2.2 Largest Contentful Paint medium effort
- −1.6 Speed Index medium effort
SEO 85 · 15 points to gain
- −7.7 Links do not have descriptive text low effort
- −7.7 Links are not crawlable medium effort
Accessibility 83 · 17 points to gain
- −4.4 Buttons do not have an accessible name medium effort
- −3.1 `button`, `link`, and `menuitem` elements do not have accessible names. medium 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
- −3.1 Touch targets do not have sufficient size or spacing. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Depot demo ↗ | 62 | 92 | 89 | 69 | 92 | 86 | 2026-11-06 |
| category ↗ | 57 | 92 | 93 | 74 | 92 | 85 | 2026-11-08 |
| home ↗ | 67 | 92 | 84 | 64 | 92 | 87 | 2026-11-06 |
| Empire demo ↗ | 68 | 92 | 90 | 81 | 92 | 86 | 2026-11-07 |
| category ↗ | 61 | 92 | 93 | 74 | 92 | 85 | 2026-11-08 |
| home ↗ | 75 | 92 | 86 | 87 | 92 | 87 | 2026-11-07 |
| Circuit default demo ↗ | 63 | 89 | 90 | 63 | 89 | 84 | 2026-11-06 |
| category ↗ | 53 | 92 | 93 | 51 | 92 | 85 | 2026-11-07 |
| home ↗ | 73 | 85 | 87 | 75 | 85 | 83 | 2026-11-06 |
| Forma demo ↗ | 55 | 89 | 90 | 74 | 89 | 85 | 2026-11-07 |
| category ↗ | 56 | 92 | 93 | 81 | 92 | 85 | 2026-11-08 |
| home ↗ | 53 | 85 | 86 | 67 | 85 | 85 | 2026-11-07 |
| vast demo ↗ | 74 | 85 | 91 | 82 | 85 | 85 | 2026-11-03 |
| category ↗ | 80 | 92 | 93 | 93 | 92 | 89 | 2026-11-03 |
| home ↗ | 68 | 77 | 88 | 71 | 77 | 81 | 2026-11-10 |