Automatic cache purging for WordPress content

By default, updating or publishing a WordPress page or a post of any kind (built-in post or custom post type) will automatically clear the following caches in the page cache:

• The single post/page URL
• The comments feed URL for that post/page
• The term archive URL for all terms associated with the post
• The term archive feed URL for all terms associated with the post
• The home page
• The page for posts (if it is set)
• The RSS feed

When a term is created, updated, or deleted in WordPress, the following caches are cleared by default:

• The term archive URL for all terms associated with the post
• The term archive feed URL for all terms associated with the post

Switching to a different active theme will purge the entire page cache for the WordPress site.