Welcoming URLs are being set during the configuration website page of each product or service, classification, or static articles page. This development web site is just handy for some automatic internet pages, and most of the time you won't have to worry about these.   You specify the first URL https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html