Without hreflang, Google could provide the wrong language version to people – like an English speaker in copyright becoming proven the French Model of the webpage, resulting in confusion and also a significant bounce level.  HubSpot CMS customers can transform their settings to have the CMS automatically incorporate self-referencing URLs. https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-google-rich-snippets-json-ld-opengraph-twitter-tags-schemaorg.html