oliverdavies.uk-old-sculpin/source/_partials/og.twig

<meta property="og:url" content="{{ site.url }}{{ page.url }}">
<meta property="og:title" content="{{ og.title ? og.title|raw : page.title|raw }}"/>

{% if og.description %}
    <meta property="og:description" content="{{ og.description|raw }}"/>
{% endif %}

{% if og.type %}
    <meta property="og:type" content="{{ og.type }}"/>
{% endif %}

{% if og.image and og.image.url %}
    <meta property="og:image" content="{{ site.url }}{{ og.image.url }}"/>
    {% if og.image.type %}
        <meta property="og:image:type" content="{{ og.image.type }}"/>
    {% endif %}
    {% if og.image.width %}
        <meta property="og:image:width" content="{{ og.image.width }}"/>
    {% endif %}
    {% if og.image.height %}
        <meta property="og:image:height" content="{{ og.image.height }}"/>
    {% endif %}
{% else %}
    <meta property="og:image" content="{{ site.url }}{{ site.avatar.url }}"/>
    <meta property="og:image:height" content="327"/>
    <meta property="og:image:type" content="image/jpg">
    <meta property="og:image:width" content="327"/>
{% endif %}

{% if og.title %}
    {% if og.image %}
        <meta name="twitter:card" content="summary_large_image"/>
        <meta name="twitter:image:src" content="{{ site.url }}{{ og.image.url }}">
    {% else %}
        <meta name="twitter:card" content="summary"/>
        <meta name="twitter:image:src" content="{{ site.url }}{{ site.avatar.url }}">
    {% endif %}
    <meta name="twitter:creator" content="@{{ site.twitter.name }}"/>
    <meta name="twitter:title" content="{{ og.title|raw }}"/>
    <meta name="twitter:text:description" content="{{ og.description|raw }}"/>
    <meta name="twitter:site" content="@{{ site.twitter.name }}"/>
{% endif %}