- Employing rich snippets may have an enormous impact on how your web pages perform in the various search engines. I wouldn’t give much pounds for their advice. They are saying that "Structured details markup is most easily represented in JSON-LD format", but I think it’s Harmless to convey this https://addons.prestashop.com/pt/seo-referenciamento-natural/31857-rich-snippets-automaticos-json-ld-opengraph-seo.html