Structured knowledge is usually a standardized structure for offering specifics of a web site and classifying the site Structured info refers to info with a high diploma of Group, these kinds of that inclusion inside of a relational databases is seamless and easily searchable by simple, simple online search engine https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html