Flow
Flow is a Shopify theme by Eight Themes ($320). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 52 for mobile speed and 75 for desktop speed, 54/54 for SEO and 90/93 for accessibility (mobile/desktop, 0–100). Those are medians across its 5 tested presets; mobile speed across every tested page ranges from 38 to 66. On its marketplace it is rated 4.7 out of 5 from 383 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 52 | 75 |
| SEO | 54 | 54 |
| Accessibility | 90 | 93 |
| Best practices | 77 | 77 |
Median of 5 presets · measured 17 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Timeless home page
Mobile
Speed 53 · 47 points to gain
- −25 Largest Contentful Paint medium effort
- −9.4 Speed Index medium effort
- −8.7 First Contentful Paint medium effort
- −4.2 Total Blocking Time medium effort
- 1.2 s Reduce unused JavaScript high effort
- 300 ms Reduce unused CSS high effort
SEO 77 · 23 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links do not have descriptive text low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 83 · 17 points to gain
- −4.7 Image elements do not have `[alt]` attributes low effort
- −4.7 Select elements do not have associated label elements. medium effort
- −3.3 Links do not have a discernible name medium effort
- −3.3 Touch targets do not have sufficient size or spacing. medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 47 · 53 points to gain
- −23.4 Total Blocking Time medium effort
- −19.5 Largest Contentful Paint medium effort
- −8.3 Speed Index medium effort
- −1 First Contentful Paint medium effort
- −0.5 Cumulative Layout Shift medium effort
- 200 ms Reduce unused JavaScript high effort
SEO 77 · 23 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Links do not have descriptive text low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 85 · 15 points to gain
- −4.7 Image elements do not have `[alt]` attributes low effort
- −4.7 Select elements do not have associated label elements. medium effort
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
- −1.4 Document does not have a main landmark. medium effort
Best practices 73 · 27 points to gain
- −19.2 Uses deprecated APIs medium effort
- −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 | ||||||
| Timeless default demo ↗ | 54 | 87 | 87 | 71 | 87 | 90 | 2026-09-11 |
| category ↗ | 64 | 92 | 95 | 84 | 92 | 99 | 2026-09-12 |
| home ↗ | 53 | 77 | 83 | 47 | 77 | 85 | 2026-09-11 |
| product ↗ | 44 | 92 | 83 | 82 | 92 | 86 | 2026-09-12 |
| Nectar demo ↗ | 40 | 54 | 90 | 51 | 54 | 93 | 2026-09-11 |
| home ↗ | 40 | 54 | 90 | 51 | 54 | 93 | 2026-09-11 |
| Sanctuary demo ↗ | 52 | 73 | 93 | 80 | 79 | 93 | 2026-09-11 |
| category ↗ | 38 | 92 | 95 | 83 | 92 | 99 | 2026-09-12 |
| home ↗ | 66 | 54 | 91 | 77 | 54 | 93 | 2026-09-11 |
| product ↗ | – | – | – | 81 | 92 | 86 | 2026-09-12 |
| Grain demo ↗ | 45 | 54 | 90 | 77 | 54 | 93 | 2026-09-11 |
| home ↗ | 45 | 54 | 90 | 77 | 54 | 93 | 2026-09-11 |
| Flow demo ↗ | 56 | 54 | 82 | 75 | 54 | 86 | 2026-09-11 |
| home ↗ | 56 | 54 | 82 | 75 | 54 | 86 | 2026-09-11 |
Show this score on your site
A live badge: it always shows Flow's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/flow"><img src="https://themestested.com/badge/shopify/flow.svg" alt="Flow speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.