I chose the site’s header template that is found at /themes/common/templates/_partials/header.tpl. With the help in the hook h = ‘MyCustomNameHooks’ building we will add our hook towards the header of our template: hook h = ‘MySocialListHeader’ . Links, each inside and exterior, are One more canonicalization signal as John Mueller https://sociallweb.com/story4249796/everything-about-automatic-hreflang-tags-canonical-tags-all-pages-seo