The tag will likely not hide genuine copy articles that you'll have on your site, like identical merchandise descriptions for various goods. Google will only read through via your hreflang tag that information “a” can be a translation of material “b.” To put it simply, by using hreflang, you allow https://addons.prestashop.com/it/seo-indicizzazione-naturale/30904-tag-hreflang-automatici-e-tag-canonici-seo.html