You specify the first URL because the internet search engine may have problem identifying which a person needs to be the first URL.  The following tutorial will demonstrate how to permit Canonical URLs in Prestashop 1.5. By default, PrestaShop's deep URLs (that is, particular pages as opposed to on https://socialinplace.com/story4629103/about-automatic-hreflang-tags-canonical-tags-all-pages-seo