{% if google_analytics_id %}
    <script async src="https://www.googletagmanager.com/gtag/js?id={{ google_analytics_id }}"></script>
    <script>
        window.dataLayer = window.dataLayer || [];

        function gtag() {
            dataLayer.push(arguments)
        };
        gtag('js', new Date());

        {% if user.is_authenticated %}
            gtag('config', "{{ google_analytics_id }}", {'user_id': "{{ user.pk }}"});
        {% else %}
            gtag('config', "{{ google_analytics_id }}");
        {% endif %}
        {% block extratracking %}{% endblock %}
    </script>
{% endif %}