You specify the primary URL because the online search engine could possibly have issue determining which one should be the first URL.  The following tutorial will explain to you ways to enable Canonical URLs in Prestashop 1.five. This technique centralizes management, simplifies updates, and declutters the HTML head part—likely https://getsocialpr.com/story19798467/everything-about-balises-hreflang-automatiques-et-balises-canoniques-seo