net/_includes/meta.html

<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">

<meta name="author" content="{{ site.author }}" />
{% if page.summary %}
<meta name="description" content="{{ page.summary }}" />
{% else %}
<meta name="description" content="{{ site.description }}" />
{% endif %}
<meta property="og:site_name" content="{{ site.title }}"/>
<meta property="og:type" content="blog"/>
<meta name="og:url" content="{{ site.url }}{{ page.url }}">
{% if page.title %}<meta property="og:title" content="{{ page.title }}"/>{% endif %}
{% if page.summary %}<meta property="og:description" content="{{ page.summary }}"/>{% endif %}
{% if page.image %}<meta property="og:image" content="{{ site.url }}{{ page.image }}"/>{% endif %}
<meta name="twitter:card" content="summary">
<meta name="twitter:creator" content="@walkah">
<meta name="twitter:url" content="{{ site.url }}{{ page.url }}">
<meta name="twitter:title" content="{{ page.title }}">
{% if page.summary %}<meta name="twitter:description" content="{{ page.summary }}">{% endif %}
{% if page.image %}<meta name="twitter:image" content="{{ site.url }}{{ page.image }}">{% endif %}
<meta name="microid" content="mailto+http:sha1:d1026e95deb9e779de34648de0c7e2c83e1d2a73" />
<link rel="apple-touch-icon" href="//s.gravatar.com/avatar/b29b5419f81fa03145cafc684bb20c76.png?s=60" />
<link rel="shortcut icon" type="image/png" href="//s.gravatar.com/avatar/b29b5419f81fa03145cafc684bb20c76.png?s=16" />