Streamline
Streamline is a Astro theme by Rob Austin (Paid). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 67 for mobile speed and 78 for desktop speed, 100/100 for SEO and 88/92 for accessibility (mobile/desktop, 0–100).
Mobile67
Desktop78
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 67 | 78 |
| SEO | 100 | 100 |
| Accessibility | 88 | 92 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Streamline home page
Mobile
Speed 67 · 33 points to gain
- −24.8 Cumulative Layout Shift medium effort
- −7.8 Largest Contentful Paint medium effort
- 150 ms Reduce unused JavaScript high effort
Accessibility 88 · 12 points to gain
- −4.8 `[aria-*]` attributes do not have valid values medium effort
- −3.4 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.4 Links do not have a discernible name medium effort
Desktop
Speed 78 · 22 points to gain
- −22 Cumulative Layout Shift medium effort
Accessibility 92 · 8 points to gain
- −4.8 `[aria-*]` attributes do not have valid values medium effort
- −3.4 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Streamline default demo ↗ | 67 | 100 | 88 | 78 | 100 | 92 | 2026-09-12 |
| home ↗ | 67 | 100 | 88 | 78 | 100 | 92 | 2026-09-12 |
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/astro/streamline"><img src="https://themestested.com/badge/astro/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.