Without hreflang, Google may possibly provide the wrong language Model to end users – like an English speaker in copyright becoming proven the French Variation of one's webpage, leading to confusion and a superior bounce rate. You can use a Software like AuthorityLabs to trace the rankings for each of https://addons.prestashop.com/fr/seo-referencement-naturel/31857-seo-automatique-google-rich-snippets-json-ld-open-graph.html