You specify the primary URL because the internet search engine can have problems determining which a single really should be the principal URL. The following tutorial will tell you about the way to allow Canonical URLs in Prestashop 1.5. Hook Overview: This hook enables you to increase any added https://addons.prestashop.com/es/seo-posicionamiento-buscadores/31857-google-rich-snippets-automatico-json-ld-opengraph-seo.html