CosmosWP
CosmosWP is a WordPress theme by cosmoswp (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 96 for mobile speed and 99 for desktop speed, 42/42 for SEO and 90/90 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 5.0 out of 5 from 74 reviews.
Mobile96
Desktop99
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 96 | 99 |
| SEO | 42 | 42 |
| Accessibility | 90 | 90 |
| 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 — CosmosWP home page
Mobile
Speed 96 · 4 points to gain
- −3 Largest Contentful Paint medium effort
- −0.8 First Contentful Paint medium effort
- −0.5 Speed Index medium effort
- 150 ms Reduce unused CSS high effort
SEO 42 · 58 points to gain
- −33.6 Page is blocked from indexing low effort
- −8.3 Document does not have a meta description low effort
- −8.3 Links do not have descriptive text low effort
- −8.3 Links are not crawlable medium effort
Accessibility 90 · 10 points to gain
- −4.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.3 Links do not have a discernible name medium effort
- −1.8 Heading elements are not in a sequentially-descending order medium effort
Desktop
Speed 99 · 1 points to gain
- −0.6 Speed Index medium effort
SEO 42 · 58 points to gain
- −33.6 Page is blocked from indexing low effort
- −8.3 Document does not have a meta description low effort
- −8.3 Links do not have descriptive text low effort
- −8.3 Links are not crawlable medium effort
Accessibility 90 · 10 points to gain
- −4.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.3 Links do not have a discernible name medium effort
- −1.8 Heading elements are not in a sequentially-descending order medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| CosmosWP default demo ↗ | 96 | 42 | 90 | 99 | 42 | 90 | 2026-09-12 |
| home ↗ | 96 | 42 | 90 | 99 | 42 | 90 | 2026-09-12 |
Show this score on your site
A live badge: it always shows CosmosWP's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/cosmoswp"><img src="https://themestested.com/badge/wordpress/cosmoswp.svg" alt="CosmosWP speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.