Publisher
Publisher is a Shopify theme by Shopify (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 75 for mobile speed and 92 for desktop speed, 95/95 for SEO and 100/100 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 3.3 out of 5 from 6 reviews.
Mobile69
Desktop91
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 75 | 92 |
| SEO | 95 | 95 |
| Accessibility | 100 | 100 |
| Best practices | 95 | 93 |
Single preset · measured 6 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — publisher home page
Mobile
Speed 69 · 31 points to gain
- −23 Largest Contentful Paint medium effort
- −4.1 First Contentful Paint medium effort
- −3.8 Speed Index medium effort
- 150 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low 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 91 · 9 points to gain
- −5.5 Cumulative Layout Shift medium effort
- −3.3 Largest Contentful Paint medium effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low 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
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| publisher default demo ↗ | 75 | 95 | 100 | 92 | 95 | 100 | 2026-09-11 |
| category ↗ | 88 | 92 | 100 | 92 | 92 | 100 | 2026-09-12 |
| home ↗ | 69 | 92 | 100 | 91 | 92 | 100 | 2026-09-11 |
| product ↗ | 69 | 100 | 100 | 92 | 100 | 100 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Publisher's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/publisher"><img src="https://themestested.com/badge/shopify/publisher.svg" alt="Publisher speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.