You specify the primary URL since the online search engine can have problems analyzing which one needs to be the primary URL.  The subsequent tutorial will show you how you can empower Canonical URLs in Prestashop one.five. Redirect to the canonical URL. A given PrestaShop web site might have https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html