Nature21
Nature21 is a WordPress theme by Sonal S Sinha (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 51 for mobile speed and 97 for desktop speed, 54/54 for SEO and 86/86 for accessibility (mobile/desktop, 0–100).
Mobile51
Desktop97
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 51 | 97 |
| SEO | 54 | 54 |
| Accessibility | 86 | 86 |
| Best practices | 96 | 100 |
Single preset · measured 2 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Nature21 home page
Mobile
Speed 51 · 49 points to gain
- −23.5 Largest Contentful Paint medium effort
- −20.3 Cumulative Layout Shift medium effort
- −4.6 First Contentful Paint medium effort
- −0.5 Speed Index medium effort
- 300 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
SEO 54 · 46 points to gain
- −36.6 Page is blocked from indexing low effort
- −9.1 Document does not have a meta description low effort
Accessibility 86 · 14 points to gain
- −4.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.1 Links do not have a discernible name medium effort
- −4.1 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
- −1.8 Heading elements are not in a sequentially-descending order medium effort
Best practices 96 · 4 points to gain
- −3.8 Serves images with low resolution low effort
Desktop
Speed 97 · 3 points to gain
- −2.7 Largest Contentful Paint medium effort
SEO 54 · 46 points to gain
- −36.6 Page is blocked from indexing low effort
- −9.1 Document does not have a meta description low effort
Accessibility 86 · 14 points to gain
- −4.1 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −4.1 Links do not have a discernible name medium effort
- −4.1 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low 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 | ||||||
| Nature21 default demo ↗ | 51 | 54 | 86 | 97 | 54 | 86 | 2026-09-12 |
| home ↗ | 51 | 54 | 86 | 97 | 54 | 86 | 2026-09-12 |
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