Markup is often quickly checked by means of schema markup tests Device. It requires some time for rich snippets to appear in search engine results, in order that they is probably not displayed instantly. Nonetheless, product and category rich snippets will seem only just after Google indexes the content material. https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html