The general gist of Dynamic CDN is to scan page content before returning it to the browser and dynamically replace locally-hosted assets (images, scripts, styles, etc) with their CDN-hosted equivalents. The trick is returning consistent CDN urls for hosted assets – the plugin uses PHP to generate a checksum for asset references so it can select the perfect URL.
As a moderator on the WordPress Stack Exchange, I end up spending a lot of time on the site. I see lots of great questions, lots of not-so-great questions, and several you’ve-got-to-be-kidding-me questions. But the question I see the most often frustrates me: How do I remove WordPress’ jQuery and use Google’s CDN version instead? […]