Easy to implement: JSON-LD separates the markup from the HTML information, which makes it a lot easier for developers to generate and manage. Another useful source for monitoring the performance of your rich snippets is Google Research Console. This free service supplies insights into your site’s overall performance in Google search https://addons.prestashop.com/fr/seo-referencement-naturel/31857-seo-automatique-google-rich-snippets-json-ld-open-graph.html