FastCGI Cache Bust
FastCGI Cache Bust is a simple plugin that clears your entire FastCGI Cache any time an entry is saved. This is somewhat of a scortched earth approach to cache invalidation, but it ensure cache coherency.
Check out the article Static Page Caching with Craft CMS for details on how to set up FastCGI Cache on your website.
Free
Package Name
To install this plugin, search for its package name on the Plugin Store and click “Install”.