Google endorses not using rel="canonical" across state or language variations of your internet site. But You need to use it within a rustic or language Variation. Right implementation: Be certain hreflang tags are accurately executed Which language codes align with ISO benchmarks. The fall-down listing on major shows you the https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/30904-automatyczne-tagi-hreflang-i-tagi-kanoniczne-seo.html