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StaticDelivr CDN is a lightweight and powerful plugin designed to improve your WordPress site’s performance. By rewriting theme, plugin, core file resource URLs, optimizing images, and proxying Google Fonts through the <a href="https://staticdelivr.com" rel="nofollow ugc">StaticDelivr CDN</a>, the plugin ensures faster loading times, reduced server load, better privacy, and an improved user experience.
StaticDelivr is a global content delivery network (CDN) that supports delivering assets from various platforms like npm, GitHub, and WordPress. By leveraging geographically distributed servers, StaticDelivr optimizes the delivery of your static assets such as CSS, JavaScript, images, and fonts.
<h3>Key Features</h3>
<ul>
<li>Smart Asset Detection: Automatically detects which themes and plugins are from wordpress.org and only serves those via CDN. Custom themes and plugins are served locally. No configuration needed!</li>
<li>Failure Memory System: If a CDN resource fails to load, the plugin remembers and automatically serves it locally for 24 hours. No more repeated failures!</li>
<li>Automatic URL Rewriting: Automatically rewrites URLs of enqueued styles, scripts, and core files for themes, plugins, and WordPress itself to use the StaticDelivr CDN.</li>
<li>Image Optimization: Automatically optimizes images with compression and modern format conversion (WebP, AVIF). Turn 2MB images into 20KB without quality loss!</li>
<li>Google Fonts Privacy Proxy: Serve Google Fonts without tracking (GDPR compliant). A drop-in replacement that strips all user-identifying data and tracking cookies.</li>
<li>Automatic Fallback: If a CDN asset fails to load, the plugin automatically falls back to your origin server, ensuring your site never breaks.</li>
<li>Localhost Detection: Automatically detects development environments and serves images locally when CDN cannot reach them.</li>
<li>Child Theme Support: Intelligently handles child themes by checking parent theme availability on wordpress.org.</li>
<li>Separate Controls: Enable or disable assets (CSS/JS), image optimization, and Google Fonts proxy independently.</li>
<li>Quality & Format Settings: Customize image compression quality and output format.</li>
<li>Verification Dashboard: See exactly which assets are served via CDN vs locally in the admin panel.</li>
<li>Failure Statistics: View which resources have failed and are being served locally, with option to clear cache.</li>
<li>Compatibility: Works seamlessly with all WordPress themes and plugins — both from wordpress.org and custom/premium sources.</li>
<li>Improved Performance: Delivers assets from the StaticDelivr CDN for lightning-fast loading and enhanced user experience.</li>
<li>Multi-CDN Support: Leverages multiple CDNs to ensure optimal availability and performance.</li>
<li>Free and Open Source: Supports the open-source community by offering free access to a high-performance CDN.</li>
</ul>
<h3>Use of Third-Party Service</h3>
This plugin relies on the <a href="https://staticdelivr.com" rel="nofollow ugc">StaticDelivr CDN</a> to deliver static assets, including WordPress themes, plugins, core files, optimized images, and Google Fonts. The CDN uses the public WordPress SVN repository to fetch theme/plugin files and serves them through a globally distributed network for faster performance and reduced bandwidth costs.
<ul>
<li>Service Terms of Use: <a href="https://staticdelivr.com/legal/terms-of-service" rel="nofollow ugc">StaticDelivr Terms</a></li>
<li>Privacy Policy: <a href="https://staticdelivr.com/legal/privacy-policy" rel="nofollow ugc">StaticDelivr Privacy Policy</a></li>
</ul>
<h3>How It Works</h3>
StaticDelivr CDN rewrites your WordPress asset URLs to deliver them through its high-performance network:
<h4>Smart Asset Detection</h4>
The plugin automatically verifies which themes and plugins exist on wordpress.org:
<ul>
<li>WordPress.org Assets: Served via StaticDelivr CDN for maximum performance</li>
<li>Custom/Premium Assets: Automatically detected and served from your server</li>
<li>Child Themes: Parent theme is checked. If the parent is on wordpress.org, assets load via CDN</li>
</ul>
This means the plugin “just works” with any combination of wordpress.org and custom themes/plugins!
<h4>Failure Memory System (New in 1.7.0!)</h4>
The plugin learns from CDN failures and automatically adapts:
<ul>
<li>First failure: Fallback fires, failure is recorded</li>
<li>Second failure: Resource is blocked from CDN for 24 hours</li>
<li>Auto-recovery: After 24 hours, resources are retried automatically</li>
<li>Manual reset: Clear the failure cache anytime from settings</li>
</ul>
This ensures that problematic resources (Cloudflare-protected images, auth-gated content, etc.) are handled gracefully without repeated failures.
<h4>Assets (CSS & JavaScript)</h4>
<ul>
<li>Original URL: `https://example.com/wp-content/themes/theme-name/version/style.css`</li>
<li>Rewritten CDN URL: `https://cdn.staticdelivr.com/wp/themes/theme-name/version/style.css`</li>
</ul>
This process applies to themes, plugins, and core files:
<ul>
<li>
Themes: 
Original: `https://example.com/wp-content/themes/twentytwentythree/1.0/style.css` 
CDN: `https://cdn.staticdelivr.com/wp/themes/twentytwentythree/1.0/style.css`
</li>
<li>
Plugins: 
Original: `https://example.com/wp-content/plugins/woocommerce/assets/js/frontend/woocommerce.min.js` 
CDN: `https://cdn.staticdelivr.com/wp/plugins/woocommerce/tags/9.3.3/assets/js/frontend/woocommerce.min.js`
</li>
<li>
Core Files: 
Original: `https://example.com/wp-includes/js/jquery/jquery.min.js` 
CDN: `https://cdn.staticdelivr.com/wp/core/tags/6.9/wp-includes/js/jquery/jquery.min.js`
</li>
</ul>
<h4>Images</h4>
<ul>
<li>Original: `https://example.com/wp-content/uploads/2024/01/photo.jpg` (2MB)</li>
<li>Optimized CDN: `https://cdn.staticdelivr.com/img/images?url=https://example.com/wp-content/uploads/2024/01/photo.jpg&q=80&format=webp` (~20KB)</li>
</ul>
<h4>Google Fonts</h4>
<ul>
<li>Original CSS: `https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap`</li>
<li>
Privacy Proxy: `https://cdn.staticdelivr.com/gfonts/css2?family=Inter:wght@400;500;600&display=swap`
</li>
<li>
Original Font Files: `https://fonts.gstatic.com/s/inter/v20/example.woff2`
</li>
<li>Privacy Proxy: `https://cdn.staticdelivr.com/gstatic-fonts/s/inter/v20/example.woff2`</li>
</ul>
This ensures faster delivery through StaticDelivr’s globally distributed network while protecting user privacy.
<h3>Why Use StaticDelivr?</h3>
<ul>
<li>Zero Configuration: Smart detection means it works out of the box with any theme/plugin combination.</li>
<li>Self-Healing: Failure memory system automatically adapts to problematic resources.</li>
<li>Global Distribution: StaticDelivr serves your assets from a globally distributed network, reducing latency and improving load times.</li>
<li>Massive Bandwidth Savings: Offload heavy image delivery to StaticDelivr. Optimized images can be 10-100x smaller!</li>
<li>Privacy-First Google Fonts: Serve Google Fonts without tracking cookies — GDPR compliant without additional cookie banners.</li>
<li>Works with Custom Themes: Unlike other CDN plugins, StaticDelivr automatically detects custom themes/plugins and serves them locally.</li>
<li>Browser Caching Benefits: As an open-source CDN used by many sites, assets served by StaticDelivr are likely already cached in users’ browsers. This enables faster load times when visiting multiple sites using StaticDelivr.</li>
<li>Significant Bandwidth Savings: Reduces your site’s bandwidth usage and number of requests significantly by offloading asset delivery to StaticDelivr.</li>
<li>Optimized Performance: Ensures assets are delivered quickly, no matter where your users are located.</li>
<li>Comprehensive WordPress Support: Includes support for delivering core WordPress files (e.g., those in the `wp-includes` directory) to enhance site speed and reliability.</li>
<li>Support for Popular Platforms: Easily integrates with npm, GitHub, WordPress, and Google Fonts.</li>
<li>Minimal Configuration: Just enable the features you want and the plugin handles the rest.</li>
<li>Development Friendly: Automatically detects localhost and development environments.</li>
</ul>
<h3>Translations</h3>
StaticDelivr CDN is available in the following languages:
<ul>
<li>English (default)</li>
<li>Spanish (Español) – es_ES, es_MX</li>
<li>French (Français) – fr_FR</li>
<li>German (Deutsch) – de_DE</li>
<li>Italian (Italiano) – it_IT</li>
<li>Portuguese Brazil (Português) – pt_BR</li>
<li>Dutch (Nederlands) – nl_NL</li>
<li>Japanese (日本語) – ja</li>
<li>Chinese Simplified (简体中文) – zh_CN</li>
<li>Chinese Traditional (繁體中文) – zh_TW</li>
<li>Russian (Русский) – ru_RU</li>
<li>Arabic (العربية) – ar</li>
<li>Korean (한국어) – ko_KR</li>
<li>Turkish (Türkçe) – tr_TR</li>
<li>Polish (Polski) – pl_PL</li>
<li>Ukrainian (Українська) – uk</li>
<li>Czech (Čeština) – cs_CZ</li>
<li>Hungarian (Magyar) – hu_HU</li>
<li>Romanian (Română) – ro_RO</li>
<li>Swedish (Svenska) – sv_SE</li>
<li>Danish (Dansk) – da_DK</li>
<li>Finnish (Suomi) – fi</li>
<li>Hebrew (עברית) – he_IL</li>
<li>Persian (فارسی) – fa_IR</li>
<li>Hindi (हिन्दी) – hi</li>
<li>Vietnamese (Tiếng Việt) – vi</li>
<li>Thai (ไทย) – th</li>
<li>Indonesian (Bahasa Indonesia) – id_ID</li>
<li>Urdu (اردو) – ur</li>
</ul>
Want to help translate StaticDelivr CDN into your language? Visit <a href="https://translate.wordpress.org/projects/wp-plugins/staticdelivr/" rel="nofollow ugc">translate.wordpress.org</a> to contribute!
<h3>License</h3>
This plugin is licensed under the GPLv2 or later. See <a href="https://www.gnu.org/licenses/gpl-2.0.html" rel="nofollow ugc">License URI</a> for details.

StaticDelivr: Free CDN, Image Optimization & Speed

Speed up WordPress with free CDN delivery, image optimization, smart asset detection, failure recovery, and privacy-first Google Fonts proxy.

Scott Farrell

This plugin will speed up your website.
The plugin is free, and the internet data subscription service is FREE also.
What is it ? 
The plugin uses a CDN (content delivery network) to cache your website assets. 
The cache has servers on most continents – so it’s closer to users and therefore faster. 
It’s a simple plugin that will make your WordPress website faster.
The subscription is free for everyone.
The plugin also enables http/2 even if your hosting company doesn’t have it, and it enables http/2 on http websites.
I’ll make the subscription free for Aussie’s forever. If I come up with an idea to recover my costs, I’ll make it free for everyone (contact me if you have an idea).
You do have to sign up at to get a key : <a href="https://whmcs.wpdone.com.au/cart.php?gid=3" rel="nofollow ugc">sign up here </a>
Here’s a little <a href="https://www.wpdone.com.au/speed-wordpress-website-content-accelerator/" rel="nofollow ugc">write up about the plugin</a>

StaticDelivr: Free CDN, Image Optimization & Speed vs wp wpDone website content accelerator