Structured data is included straight to a web site's HTML markup. Search engines like yahoo use structured details to crank out rich snippets, that are tiny parts of information which will then appear in search engine results. RDFa shares some similarities with Microdata by incorporating metadata specifically into your site’s https://addons.prestashop.com/es/seo-posicionamiento-buscadores/31857-google-rich-snippets-automatico-json-ld-opengraph-seo.html