This attribute is available in clutch for pages that serve as the default version for people whose language or place doesn’t match any hreflang tags.  Ensure your XML sitemap only contains canonical pages. This will help search engines like google and yahoo find the right URLs to index. 10 en https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html