In case you have non-HTML pages on your internet site, including PDFs or spreadsheets, you won’t be able to apply hreflang while in the on the HTML mainly because it doesn’t exist.  Módulos patrocinados Descubre nuestra selección de módulos patrocinados para responder a todas tus necesidades Worldwide Search engine optimization https://addons.prestashop.com/de/seo-suchmaschinenranking-optimization/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html