Org microdata or Open Graph markup. Specifically, the height need to be at least 120px, and When the width is below 100px, then the component ratio needs to be no bigger than three.0.” The event has long been postponed to some afterwards day, although the date isn't really recognised yet. https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html