Greengrass
Greengrass is a WordPress theme by flythemes (Free). Tested on 2026-09-13 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 94 for mobile speed and 100 for desktop speed, 45/45 for SEO and 94/90 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 5.0 out of 5 from 1 reviews.
Mobile94
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 94 | 100 |
| SEO | 45 | 45 |
| Accessibility | 94 | 90 |
| 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 — Greengrass home page
Mobile
Speed 94 · 6 points to gain
- −5.5 Largest Contentful Paint medium effort
SEO 45 · 55 points to gain
- −36.6 Page is blocked from indexing low effort
- −9.1 Document does not have a meta description low effort
- −9.1 Links are not crawlable medium effort
Accessibility 94 · 6 points to gain
- −4.3 Background and foreground colors do not have a sufficient contrast ratio. medium 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
SEO 45 · 55 points to gain
- −36.6 Page is blocked from indexing low effort
- −9.1 Document does not have a meta description low effort
- −9.1 Links are not crawlable medium effort
Accessibility 90 · 10 points to gain
- −4.1 Background and foreground colors do not have a sufficient contrast ratio. 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 | ||||||
| Greengrass default demo ↗ | 94 | 45 | 94 | 100 | 45 | 90 | 2026-09-13 |
| home ↗ | 94 | 45 | 94 | 100 | 45 | 90 | 2026-09-13 |
Show this score on your site
A live badge: it always shows Greengrass's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/greengrass"><img src="https://themestested.com/badge/wordpress/greengrass.svg" alt="Greengrass speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.