This attribute is available in clutch for pages that function the default Variation for users whose language or site doesn’t match any hreflang tags. The truth is, implementing a herflang tag is usually a daunting activity for SEOs, Which is the reason up to 31% of Worldwide web-sites incorporate hreflang https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html