Lightning
Lightning is a WordPress theme by Hidekazu Ishikawa (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 89 for mobile speed and 99 for desktop speed, 50/50 for SEO and 95/95 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 4.8 out of 5 from 12 reviews.
Mobile89
Desktop99
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 89 | 99 |
| SEO | 50 | 50 |
| Accessibility | 95 | 95 |
| 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 — Lightning home page
Mobile
Speed 89 · 11 points to gain
- −6.8 Largest Contentful Paint medium effort
- −4.1 First Contentful Paint medium effort
- 450 ms Reduce unused CSS high effort
- 150 ms Reduce unused JavaScript high effort
SEO 50 · 50 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
Accessibility 95 · 5 points to gain
- −3.3 Touch targets do not have sufficient size or spacing. medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
Desktop
Speed 99 · 1 points to gain
- −0.8 Largest Contentful Paint medium effort
SEO 50 · 50 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
Accessibility 95 · 5 points to gain
- −3.7 Touch targets do not have sufficient size or spacing. medium effort
- −1.6 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 | ||||||
| Lightning default demo ↗ | 89 | 50 | 95 | 99 | 50 | 95 | 2026-09-12 |
| home ↗ | 89 | 50 | 95 | 99 | 50 | 95 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Lightning's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/lightning"><img src="https://themestested.com/badge/wordpress/lightning.svg" alt="Lightning speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.