Pleasant URLs are being set while in the configuration web site of each products, group, or static information web page. This development page is simply useful for some automated web pages, and most of the time you won't have to worry about these.   You specify the first URL as https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html