A mon avis vous parliez de réecriture d'URLs. Ce module par exemple semble supprimer l'ID de l'URL : Ensure your XML sitemap only includes canonical pages. This can help search engines like google explore the correct URLs to index. Regretably, hreflang tags will not be an absolute directive. Mostly, hreflang https://addons.prestashop.com/it/seo-indicizzazione-naturale/30904-tag-hreflang-automatici-e-tag-canonici-seo.html