Integrate Google Tag Manager with all your Prestashop shop to simply handle and deploy the advertising tags without the should change the code. Your x-default should not stage in your English website page. In its place it should position to some web page for customers to choose their language or https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/30904-automatische-hreflang-tags-en-canonieke-tags-seo.html