You specify the primary URL since the search engine can have difficulty pinpointing which just one should be the key URL. The subsequent tutorial will explain to you ways to allow Canonical URLs in Prestashop one.five. Yahoo: Yahoo takes advantage of Bing’s search know-how and supports hreflang tags in https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html