templates/layout/head/language.html.twig line 1

{# <link rel="alternate" hreflang="en-gb" href="https://en-gb.example.com/page.html">
<link rel="alternate" hreflang="en-us" href="https://en-us.example.com/page.html">
<link rel="alternate" hreflang="en" href="https://en.example.com/page.html">
<link rel="alternate" hreflang="de" href="https://de.example.com/page.html">
<link rel="alternate" hreflang="x-default" href="https://www.example.com/"> #}

{% for link in get_localized_links(document) %}
    {% if not link.missingTranslation %}
        <link rel="alternate" hreflang="{{ link.text }}" href="{{ app.request.getSchemeAndHttpHost() }}{{ link.href }}">
    {% endif %}
{% endfor %}

{# x-default: this page doesn't target any specific language or locale and is the default page when no other page is better suited. #}
{# <link rel="alternate" hreflang="x-default" href="https://www.example.com/"> #}