Only canonical URLs needs to be listed inside your sitemap, Whilst Google claims that doing this is often a weak canonicalization sign. You will discover three ways to incorporate hreflang tags to webpages (by add, we don’t necessarily mean put into action, we’ve now included that):  In these conditions, since https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html