When does WP-Optimize clear the page cache?

• When changing/updating current themes and parent themes (of child themes)
• When changing/updating current plugins
• When turning off the cache feature in WP-Optimize
• When editing widgets
• When saving the customizer settings
• When updating a menu
• When Autoptimize purges its cache
• When updating permalink structure
• When changing cache settings
• When updating string translations in WPML plugin
• When updating the posts_per_page option
• When purging Avada theme’s fusion caches
• When saving any of GetWooPlugins’ settings (Premium)

This can be changed by hooking into the filter wpo_purge_cache_hooks E.g.

// Add a new action that will trigger a cache purge
add_filter( 'wpo_purge_cache_hooks', function( $actions ) {
    $actions[] = 'my_custom_action';
    return $actions;
} );

• When you publish new content or update/edit existing content, the cache for that post/page will be cleared, as well as associated content (category archives, blog archives)
• When comments are approved, or their status changes
• When terms are created or updated
• When changing/updating stock quantity of WooCommerce product or product variation
• When updating the page_on_front option
• When updating page_for_posts option
• When updating the ‘URLs to exclude from caching’ WP-Optimize caching configuration
• When trashing a post
• When running importers
• When WooCommerce product is on sale (Premium)