Each time The shopper login to The shop it is seen within the tag manager. The client own particulars for example title and e mail id are shown in the information layer. PrestaShop also will allow people to create different Hreflang tags and Canonical tags for different languages, which is https://addons.prestashop.com/en/seo-natural-search-engine-optimization/30904-automatic-hreflang-tags-canonical-tags-all-pages-seo.html