Developer blog
Developer blog is a Astro theme by Nemanja Mitic (Free). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 95 for mobile speed and 100 for desktop speed, 100/100 for SEO and 95/84 for accessibility (mobile/desktop, 0–100).
Mobile95
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 95 | 100 |
| SEO | 100 | 100 |
| Accessibility | 95 | 84 |
| Best practices | 96 | 100 |
Single preset · measured 2 times since 2026-09-13 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Developer blog home page
Mobile
Speed 95 · 5 points to gain
- −3.8 Largest Contentful Paint medium effort
- −0.8 Speed Index medium effort
- 300 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
Accessibility 95 · 5 points to gain
- −4.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 96 · 4 points to gain
- −3.8 Serves images with low resolution low effort
Desktop
Accessibility 84 · 16 points to gain
- −5.7 `[role]`s do not have all required `[aria-*]` attributes medium effort
- −5.7 Buttons do not have an accessible name medium effort
- −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 | ||||||
| Developer blog default demo ↗ | 95 | 100 | 95 | 100 | 100 | 84 | 2026-09-13 |
| home ↗ | 95 | 100 | 95 | 100 | 100 | 84 | 2026-09-13 |
Show this score on your site
A live badge: it always shows Developer blog's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/astro/developer-blog"><img src="https://themestested.com/badge/astro/developer-blog.svg" alt="Developer blog speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.