You specify the first URL since the online search engine might have issue deciding which one should be the main URL.  The next tutorial will show you ways to permit Canonical URLs in Prestashop one.5. Hook Overview: This hook helps you to insert any extra fields or details to https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html