We'll create fresh WordPress site with JSM Accurate Modified Time for SEO installed. You have 20 minutes to test the plugin after that site we'll be deleted.
WordPress updates the post/page modified time only when you save/update the post/page in the editor. If you have shortcodes or blocks that create dynamic content (ie. returning content from queries, files, feeds, etc.), the WordPress post/page modified time will not reflect these dynamic changes.
The JSM Accurate Modified Time for SEO plugin monitors the post/page content for changes, and updates the WordPress post/page modified time as required. If you use a social and search optimization plugin like WPSSO Core, Yoast SEO, The SEO Framework, etc., after activating this plugin the Open Graph og:updated_time
and article:modified_time
meta tags, along with the Schema markup dateModified
property, will show an accurate modification time if/when your post/page content changes.