Welcoming URLs are to generally be set from the configuration site of each products, classification, or static content page. This generation site is only handy for a few automatic webpages, and most of the time you will not have to bother with these. By default, PrestaShop's deep URLs (that is https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html