CDN

Dotjuice → Page speed → CDN

What this tab controls

Rewriting your site's stylesheet and script URLs to point at a CDN hostname instead of your own server.

Settings

Setting	Default	What it does
Enable CDN URL Rewriting	Off	Turns URL rewriting on or off.
CDN URL	Empty	The hostname to rewrite asset URLs to (e.g. https://cdn.yoursite.com). The plugin doesn't check that this URL is reachable or correctly configured — make sure your CDN is already set up and serving your site's files before enabling this.
Rewrite These Directories	wp-content, wp-includes	Only URLs containing one of these path segments are rewritten — leaves this as-is unless you have a specific reason to narrow or widen it.

What this does and doesn't cover

This setting rewrites the URLs WordPress generates for enqueued stylesheets and scripts — the same files covered by the CSS and JavaScript tabs. It does not rewrite:

• Image URLs (<img> tags, background images set via CSS)
• Media Library files linked or embedded in post content
• Fonts referenced from inside a CSS file's own @font-face rules

If your goal is CDN delivery for your whole media library rather than just CSS/JS, you'll need a dedicated media-offload plugin, or your CDN provider's own integration, in addition to this setting.

Setting it up

1. Confirm your CDN is already configured and correctly mirroring/proxying your site (this plugin doesn't set up the CDN itself — it only rewrites URLs to point at one that's already working).
2. Enter your CDN's hostname in CDN URL, including the https:// prefix.
3. Enable Enable CDN URL Rewriting and save.
4. Clear your cache and check a page's source (or your browser's Network tab) to confirm stylesheet and script URLs now point at your CDN hostname and load correctly.

If assets fail to load after enabling this, double-check the CDN URL is exactly correct and that your CDN is actually serving the wp-content/wp-includes paths — a misconfigured CDN will show as broken styling or a console full of failed requests.