Hi @wyclef,
The Partial Page Caching guide covers exactly this: https://developer.jetpack.com/docs/customization/wp-super-cache/wp-super-cache-partial-page-caching/
The short version: you enable “Enable dynamic caching” and “Late init” on the Advanced Settings page, then add a secret placeholder string in your template where you want dynamic content to appear. You write a small plugin that hooks into the wpsc_cachedata filter to replace that placeholder with your dynamic content when the cached page is served.
There’s also a working example plugin bundled with WP Super Cache that you can reference: https://github.com/Automattic/wp-super-cache/blob/master/plugins/dynamic-cache-test.php
One thing to note: this only works with PHP or Simple caching mode, not mod_rewrite mode. And if JavaScript is an option for your use case, that’s the simpler approach since it works with all caching modes.
Please let us know if you have any questions. Thanks!
