Only canonical URLs ought to be stated as part of your sitemap, although Google says that doing this is often a weak canonicalization signal. Al enviar este formulario, acepto que PrestaShop S.A utilice los datos que he facilitado para el envío de boletines y ofertas promocionales. Canonicalization is often advanced. https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html