Streamline
Streamline is a Shopify theme by Archetype Themes ($420). Tested on 2026-09-11 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 65 for mobile speed and 83 for desktop speed, 95/95 for SEO and 92/91 for accessibility (mobile/desktop, 0–100). Those are medians across its 3 tested presets; mobile speed across every tested page ranges from 47 to 91. On its marketplace it is rated 4.8 out of 5 from 334 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 65 | 83 |
| SEO | 95 | 95 |
| Accessibility | 92 | 91 |
| Best practices | 96 | 96 |
Median of 3 presets · measured 18 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Streamline home page
Mobile
Speed 47 · 53 points to gain
- −25 Largest Contentful Paint medium effort
- −18.9 Total Blocking Time medium effort
- −5.1 Speed Index medium effort
- −3.9 First Contentful Paint medium effort
- 590 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 88 · 12 points to gain
- −5.1 Buttons do not have an accessible name medium effort
- −3.6 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.6 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 84 · 16 points to gain
- −14.7 Total Blocking Time medium effort
- −0.8 Largest Contentful Paint medium effort
- −0.5 Speed Index medium effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 88 · 12 points to gain
- −5.1 Buttons do not have an accessible name medium effort
- −3.6 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.6 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 | ||||||
| Fern demo ↗ | 61 | 95 | 91 | 78 | 95 | 91 | 2026-09-11 |
| category ↗ | 66 | 92 | 97 | 92 | 92 | 97 | 2026-09-11 |
| home ↗ | 58 | 92 | 84 | 58 | 92 | 88 | 2026-09-11 |
| product ↗ | 60 | 100 | 93 | 85 | 100 | 88 | 2026-09-11 |
| Satin demo ↗ | 79 | 95 | 97 | 87 | 95 | 93 | 2026-09-11 |
| category ↗ | 77 | 92 | 100 | 97 | 92 | 97 | 2026-09-11 |
| home ↗ | 91 | 92 | 91 | 96 | 92 | 91 | 2026-09-11 |
| product ↗ | 68 | 100 | 100 | 68 | 100 | 92 | 2026-09-11 |
| Streamline default demo ↗ | 65 | 97 | 92 | 83 | 97 | 90 | 2026-09-11 |
| category ↗ | 71 | 100 | 100 | 78 | 100 | 97 | 2026-09-11 |
| home ↗ | 47 | 92 | 88 | 84 | 92 | 88 | 2026-09-11 |
| product ↗ | 77 | 100 | 88 | 87 | 100 | 85 | 2026-09-11 |
Show this score on your site
A live badge: it always shows Streamline's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/streamline"><img src="https://themestested.com/badge/shopify/streamline.svg" alt="Streamline speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.