Utilizing the hreflang tag onto your site correctly can be quite a little bit tough. Below can be a tutorial regarding how to get it done. Simply put, by using hreflang, you enable search engines like google and yahoo to know the relationship between distinct language variations within your site. https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/30904-automatyczne-tagi-hreflang-i-tagi-kanoniczne-seo.html