Varnish/Nginx Proxy Caching for WordPress

Purge key based PURGE

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Debugging option

console for precise manual purges

This plugin also auto purges Varnish Cache / Nginx Proxy Cache when your site is modified.

Varnish Caching sends a PURGE request to Varnish Cache / Nginx Proxy Cache when a page or post is modified. This occurs when editing, publishing, commenting or deleting an item, and when changing themes.

Not all pages are purged every time, depending on your Varnish / Nginx Proxy Cache configuration. When a post, page, or custom post type is edited, or a new comment is added, only the following pages will purge:

The front page

The post/page edited

Any categories or tags associated with the page

Varnish Cache / Nginx Proxy Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. This plugin does not install Varnish/Nginx for you, nor does it configure Varnish/Nginx for WordPress. It’s expected you already did that on your own using the provided config files.

Inspired from the following :

https://wordpress.org/plugins/varnish-http-purge/

https://github.com/dreamhost/varnish-vcl-collection/