Knowledge base
What Zinn® Cache is, free and Pro, which cache serves your pages (LiteSpeed, nginx, Varnish, Apache, Cloudflare or its own) and its guides.
Page cache, Redis object cache and purging for nginx, Varnish, Apache, LiteSpeed and Cloudflare — updates refresh pages gradually, never all at once.
Zinn® Cache is free and complete, from WordPress.org, with no licence key. Zinn® Cache Pro is an optional paid add-on that installs on top of it; prices are in Zinn® WordPress plugin prices.
On a LiteSpeed server Zinn® Cache drives the server's own page cache. When nginx, Varnish or Apache already caches pages in front of WordPress, it does not add a second page cache behind it: it purges changed pages there (and on Cloudflare, when that is switched on). Anywhere else it stores each page as a file and serves it before WordPress loads. Updates and plugin activations refresh the site a batch a minute instead of emptying the cache at once.
Every guide, with screenshots, is at https://zinncache.com/kb. It needs WordPress 6.6 or newer and PHP 8.2 or newer.
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