For anyone who is using JSON-LD check that your script tag is suitable, it needs to have application/ld+json attribute, check if a few of your plugins will not be stripping them Google defines rich snippets as “an Improved search result with further visual or interactive options.” When hunting for educational https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-google-rich-snippets-json-ld-opengraph-twitter-tags-schemaorg.html