Extendable
Extendable is a WordPress theme by Extendify (Free). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 91 for mobile speed and 100 for desktop speed, 50/50 for SEO and 100/95 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 5.0 out of 5 from 4 reviews.
Mobile91
Desktop100
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 91 | 100 |
| SEO | 50 | 50 |
| Accessibility | 100 | 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 — Extendable home page
Mobile
Speed 91 · 9 points to gain
- −3.5 First Contentful Paint medium effort
- −3 Largest Contentful Paint medium effort
- −2.2 Speed Index medium effort
SEO 50 · 50 points to gain
- −40.3 Page is blocked from indexing low effort
- −10 Document does not have a meta description low effort
Desktop
SEO 50 · 50 points to gain
- −40.3 Page is blocked from indexing low effort
- −10 Document does not have a meta description low effort
Accessibility 95 · 5 points to gain
- −4.6 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Extendable default demo ↗ | 91 | 50 | 100 | 100 | 50 | 95 | 2026-09-12 |
| home ↗ | 91 | 50 | 100 | 100 | 50 | 95 | 2026-09-12 |
Show this score on your site
A live badge: it always shows Extendable's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/wordpress/extendable"><img src="https://themestested.com/badge/wordpress/extendable.svg" alt="Extendable speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.