diff --git a/_includes/archive-single.html b/_includes/archive-single.html
index 7854c961bd43..29f365ecc46b 100644
--- a/_includes/archive-single.html
+++ b/_includes/archive-single.html
@@ -17,14 +17,14 @@
         <img src="{{ teaser | relative_url }}" alt="">
       </div>
     {% endif %}
-    <h2 class="archive__item-title no_toc" itemprop="headline">
+    <h2 class="archive__item-title no_toc p-name" itemprop="headline">
       {% if post.link %}
-        <a href="{{ post.link }}">{{ title }}</a> <a href="{{ post.url | relative_url }}" rel="permalink"><i class="fas fa-link" aria-hidden="true" title="permalink"></i><span class="sr-only">Permalink</span></a>
+        <a class="u-url" href="{{ post.link }}">{{ title }}</a> <a href="{{ post.url | relative_url }}" rel="permalink"><i class="fas fa-link" aria-hidden="true" title="permalink"></i><span class="sr-only">Permalink</span></a>
       {% else %}
-        <a href="{{ post.url | relative_url }}" rel="permalink">{{ title }}</a>
+        <a class="u-url" href="{{ post.url | relative_url }}" rel="permalink">{{ title }}</a>
       {% endif %}
     </h2>
     {% include page__meta.html type=include.type %}
-    {% if post.excerpt %}<p class="archive__item-excerpt" itemprop="description">{{ post.excerpt | markdownify | strip_html | truncate: 160 }}</p>{% endif %}
+    {% if post.excerpt %}<p class="archive__item-excerpt p-summary" itemprop="description">{{ post.excerpt | markdownify | strip_html | truncate: 160 }}</p>{% endif %}
   </article>
 </div>
diff --git a/_includes/author-profile.html b/_includes/author-profile.html
index e256ec7dd18f..c229c876ed85 100644
--- a/_includes/author-profile.html
+++ b/_includes/author-profile.html
@@ -5,7 +5,7 @@
 
   {% if author.avatar %}
     <div class="author__avatar">
-      <a href="{{ author.home | default: '/' | absolute_url }}">
+      <a rel="author" href="{{ author.home | default: '/' | absolute_url }}">
         <img src="{{ author.avatar | relative_url }}" alt="{{ author.name }}" itemprop="image" class="u-photo">
       </a>
     </div>
@@ -13,7 +13,7 @@
 
   <div class="author__content">
     <h3 class="author__name p-name" itemprop="name">
-      <a class="u-url" rel="me" href="{{ author.home | default: '/' | absolute_url }}" itemprop="url">{{ author.name }}</a>
+      <a class="u-url" rel="author" href="{{ author.home | default: '/' | absolute_url }}" itemprop="url">{{ author.name }}</a>
     </h3>
     {% if author.bio %}
       <div class="author__bio p-note" itemprop="description">
@@ -34,14 +34,14 @@ <h3 class="author__name p-name" itemprop="name">
       {% if author.links %}
         {% for link in author.links %}
           {% if link.label and link.url %}
-            <li><a href="{{ link.url }}" rel="nofollow noopener noreferrer me"{% if link.url contains 'http' %} itemprop="sameAs"{% endif %}><i class="{{ link.icon | default: 'fas fa-link' }}" aria-hidden="true"></i><span class="label">{{ link.label }}</span></a></li>
+            <li><a href="{{ link.url }}" rel="nofollow noopener noreferrer{% if item.rel %} {{ item.rel }}{% endif %}"{% if link.url contains 'http' %} itemprop="sameAs"{% endif %}><i class="{{ link.icon | default: 'fas fa-link' }}" aria-hidden="true"></i><span class="label">{{ link.label }}</span></a></li>
           {% endif %}
         {% endfor %}
       {% endif %}
 
       {% if author.uri %}
         <li>
-          <a href="{{ author.uri }}" itemprop="url" rel="me">
+          <a href="{{ author.uri }}" itemprop="url" rel="author">
             <i class="fas fa-fw fa-link" aria-hidden="true"></i><span class="label">{{ site.data.ui-text[site.locale].website_label | default: "Website" }}</span>
           </a>
         </li>
@@ -49,7 +49,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.email %}
         <li>
-          <a href="mailto:{{ author.email }}" rel="me" class="u-email">
+          <a href="mailto:{{ author.email }}" rel="author" class="u-email">
             <meta itemprop="email" content="{{ author.email }}" />
             <i class="fas fa-fw fa-envelope-square" aria-hidden="true"></i><span class="label">{{ site.data.ui-text[site.locale].email_label | default: "Email" }}</span>
           </a>
@@ -58,7 +58,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.keybase %}
         <li>
-          <a href="https://keybase.io/{{ author.keybase }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://keybase.io/{{ author.keybase }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-keybase" aria-hidden="true"></i><span class="label">Keybase</span>
           </a>
         </li>
@@ -66,7 +66,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.twitter %}
         <li>
-          <a href="https://twitter.com/{{ author.twitter }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://twitter.com/{{ author.twitter }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-twitter-square" aria-hidden="true"></i><span class="label">Twitter</span>
           </a>
         </li>
@@ -74,7 +74,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.facebook %}
         <li>
-          <a href="https://www.facebook.com/{{ author.facebook }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://www.facebook.com/{{ author.facebook }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-facebook-square" aria-hidden="true"></i><span class="label">Facebook</span>
           </a>
         </li>
@@ -82,7 +82,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.linkedin %}
         <li>
-          <a href="https://www.linkedin.com/in/{{ author.linkedin }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://www.linkedin.com/in/{{ author.linkedin }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-linkedin" aria-hidden="true"></i><span class="label">LinkedIn</span>
           </a>
         </li>
@@ -90,7 +90,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.xing %}
         <li>
-          <a href="https://www.xing.com/profile/{{ author.xing }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://www.xing.com/profile/{{ author.xing }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-xing-square" aria-hidden="true"></i><span class="label">XING</span>
           </a>
         </li>
@@ -98,7 +98,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.instagram %}
         <li>
-          <a href="https://instagram.com/{{ author.instagram }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://instagram.com/{{ author.instagram }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-instagram" aria-hidden="true"></i><span class="label">Instagram</span>
           </a>
         </li>
@@ -106,7 +106,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.tumblr %}
         <li>
-          <a href="https://{{ author.tumblr }}.tumblr.com" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://{{ author.tumblr }}.tumblr.com" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-tumblr-square" aria-hidden="true"></i><span class="label">Tumblr</span>
           </a>
         </li>
@@ -114,7 +114,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.bitbucket %}
         <li>
-          <a href="https://bitbucket.org/{{ author.bitbucket }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://bitbucket.org/{{ author.bitbucket }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-bitbucket" aria-hidden="true"></i><span class="label">Bitbucket</span>
           </a>
         </li>
@@ -122,7 +122,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.github %}
         <li>
-          <a href="https://github.com/{{ author.github }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://github.com/{{ author.github }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-github" aria-hidden="true"></i><span class="label">GitHub</span>
           </a>
         </li>
@@ -130,7 +130,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.gitlab %}
         <li>
-          <a href="https://gitlab.com/{{ author.gitlab }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://gitlab.com/{{ author.gitlab }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-gitlab" aria-hidden="true"></i><span class="label">GitLab</span>
           </a>
         </li>
@@ -138,7 +138,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.stackoverflow %}
         <li>
-          <a href="https://stackoverflow.com/users/{{ author.stackoverflow }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://stackoverflow.com/users/{{ author.stackoverflow }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-stack-overflow" aria-hidden="true"></i><span class="label">Stack Overflow</span>
           </a>
         </li>
@@ -146,7 +146,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.lastfm %}
         <li>
-          <a href="https://last.fm/user/{{ author.lastfm }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://last.fm/user/{{ author.lastfm }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-lastfm-square" aria-hidden="true"></i><span class="label">Last.fm</span>
           </a>
         </li>
@@ -154,7 +154,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.dribbble %}
         <li>
-          <a href="https://dribbble.com/{{ author.dribbble }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://dribbble.com/{{ author.dribbble }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-dribbble" aria-hidden="true"></i><span class="label">Dribbble</span>
           </a>
         </li>
@@ -162,7 +162,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.pinterest %}
         <li>
-          <a href="https://www.pinterest.com/{{ author.pinterest }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://www.pinterest.com/{{ author.pinterest }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-pinterest" aria-hidden="true"></i><span class="label">Pinterest</span>
           </a>
         </li>
@@ -170,7 +170,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.foursquare %}
         <li>
-          <a href="https://foursquare.com/{{ author.foursquare }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://foursquare.com/{{ author.foursquare }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-foursquare" aria-hidden="true"></i><span class="label">Foursquare</span>
           </a>
         </li>
@@ -178,7 +178,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.steam %}
         <li>
-          <a href="https://steamcommunity.com/id/{{ author.steam }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://steamcommunity.com/id/{{ author.steam }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-steam" aria-hidden="true"></i><span class="label">Steam</span>
           </a>
         </li>
@@ -187,13 +187,13 @@ <h3 class="author__name p-name" itemprop="name">
       {% if author.youtube %}
         {% if author.youtube contains "://" %}
           <li>
-            <a href="{{ author.youtube }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+            <a href="{{ author.youtube }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
               <i class="fab fa-fw fa-youtube" aria-hidden="true"></i><span class="label">YouTube</span>
             </a>
           </li>
         {% elsif author.youtube %}
           <li>
-            <a href="https://www.youtube.com/user/{{ author.youtube }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+            <a href="https://www.youtube.com/user/{{ author.youtube }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
               <i class="fab fa-fw fa-youtube" aria-hidden="true"></i><span class="label">YouTube</span>
             </a>
           </li>
@@ -202,7 +202,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.soundcloud %}
         <li>
-          <a href="https://soundcloud.com/{{ author.soundcloud }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://soundcloud.com/{{ author.soundcloud }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-soundcloud" aria-hidden="true"></i><span class="label">SoundCloud</span>
           </a>
         </li>
@@ -210,7 +210,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.weibo %}
         <li>
-          <a href="https://www.weibo.com/{{ author.weibo }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://www.weibo.com/{{ author.weibo }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-weibo" aria-hidden="true"></i><span class="label">Weibo</span>
           </a>
         </li>
@@ -218,7 +218,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.flickr %}
         <li>
-          <a href="https://www.flickr.com/{{ author.flickr }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://www.flickr.com/{{ author.flickr }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-flickr" aria-hidden="true"></i><span class="label">Flickr</span>
           </a>
         </li>
@@ -226,7 +226,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.codepen %}
         <li>
-          <a href="https://codepen.io/{{ author.codepen }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://codepen.io/{{ author.codepen }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-codepen" aria-hidden="true"></i><span class="label">CodePen</span>
           </a>
         </li>
@@ -234,7 +234,7 @@ <h3 class="author__name p-name" itemprop="name">
 
       {% if author.vine %}
         <li>
-          <a href="https://vine.co/u/{{ author.vine }}" itemprop="sameAs" rel="nofollow noopener noreferrer me">
+          <a href="https://vine.co/u/{{ author.vine }}" itemprop="sameAs" rel="nofollow noopener noreferrer author">
             <i class="fab fa-fw fa-vine" aria-hidden="true"></i><span class="label">{{ site.data.ui-text[site.locale].email_label | default: "Email" }}</span>
           </a>
         </li>
diff --git a/_includes/footer.html b/_includes/footer.html
index 2b2b7ee1e479..86c93e645bb6 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -7,7 +7,7 @@
     {% if site.footer.links %}
       {% for link in site.footer.links %}
         {% if link.label and link.url %}
-          <li><a href="{{ link.url }}" rel="nofollow noopener noreferrer"><i class="{{ link.icon | default: 'fas fa-link' }}" aria-hidden="true"></i> {{ link.label }}</a></li>
+          <li><a href="{{ link.url }}" rel="nofollow noopener noreferrer{% if item.rel %} {{ item.rel }}{% endif %}"><i class="{{ link.icon | default: 'fas fa-link' }}" aria-hidden="true"></i> {{ link.label }}</a></li>
         {% endif %}
       {% endfor %}
     {% endif %}
diff --git a/_includes/page__date.html b/_includes/page__date.html
index ec02005f1307..1d604a1a435a 100644
--- a/_includes/page__date.html
+++ b/_includes/page__date.html
@@ -1,6 +1,6 @@
 {% assign date_format = site.date_format | default: "%B %-d, %Y" %}
 {% if page.last_modified_at %}
-  <p class="page__date"><strong><i class="fas fa-fw fa-calendar-alt" aria-hidden="true"></i> {{ site.data.ui-text[site.locale].date_label | default: "Updated:" }}</strong> <time class="dt-published" datetime="{{ page.last_modified_at | date: "%Y-%m-%d" }}">{{ page.last_modified_at | date: date_format }}</time></p>
+  <p class="page__date"><strong><i class="fas fa-fw fa-calendar-alt" aria-hidden="true"></i> {{ site.data.ui-text[site.locale].date_label | default: "Updated:" }}</strong> <time class="dt-updated" datetime="{{ page.last_modified_at | date: "%Y-%m-%d" }}">{{ page.last_modified_at | date: date_format }}</time></p>
 {% elsif page.date %}
   <p class="page__date"><strong><i class="fas fa-fw fa-calendar-alt" aria-hidden="true"></i> {{ site.data.ui-text[site.locale].date_label | default: "Updated:" }}</strong> <time class="dt-published" datetime="{{ page.date | date_to_xmlschema }}">{{ page.date | date: date_format }}</time></p>
 {% endif %}
\ No newline at end of file
diff --git a/_layouts/archive-taxonomy.html b/_layouts/archive-taxonomy.html
index 4e94867df655..1fb4953e6aeb 100644
--- a/_layouts/archive-taxonomy.html
+++ b/_layouts/archive-taxonomy.html
@@ -18,9 +18,9 @@
 <div id="main" role="main">
   {% include sidebar.html %}
 
-  <div class="archive">
+  <div class="archive h-feed">
     {% unless page.header.overlay_color or page.header.overlay_image %}
-      <h1 id="page-title" class="page__title"{% if page.locale %} lang="{{ page.locale }}"{% endif %}>{{ page.title }}</h1>
+      <h1 id="page-title p-name" class="page__title"{% if page.locale %} lang="{{ page.locale }}"{% endif %}>{{ page.title }}</h1>
     {% endunless %}
     {% for post in page.posts %}
       {% include archive-single.html %}
diff --git a/_layouts/archive.html b/_layouts/archive.html
index 83e109b58cb4..f406cbe08453 100644
--- a/_layouts/archive.html
+++ b/_layouts/archive.html
@@ -17,7 +17,7 @@
 <div id="main" role="main">
   {% include sidebar.html %}
 
-  <div class="archive">
+  <div class="archive h-feed">
     {% unless page.header.overlay_color or page.header.overlay_image %}
       <h1 id="page-title" class="page__title"{% if page.locale %} lang="{{ page.locale }}"{% endif %}>{{ page.title }}</h1>
     {% endunless %}
diff --git a/_layouts/single.html b/_layouts/single.html
index 1e42e3f6b8a4..79c62b695c3f 100644
--- a/_layouts/single.html
+++ b/_layouts/single.html
@@ -21,7 +21,7 @@
 <div id="main" role="main">
   {% include sidebar.html %}
 
-  <article class="page" itemscope itemtype="https://schema.org/CreativeWork"{% if page.locale %} lang="{{ page.locale }}"{% endif %}>
+  <article class="page h-entry" itemscope itemtype="https://schema.org/CreativeWork"{% if page.locale %} lang="{{ page.locale }}"{% endif %}>
     {% if page.title %}<meta itemprop="headline" content="{{ page.title | replace: '|', '&#124;' | markdownify | strip_html | strip_newlines | escape_once }}">{% endif %}
     {% if page.excerpt %}<meta itemprop="description" content="{{ page.excerpt | markdownify | strip_html | strip_newlines | escape_once }}">{% endif %}
     {% if page.date %}<meta itemprop="datePublished" content="{{ page.date | date_to_xmlschema }}">{% endif %}
@@ -31,7 +31,7 @@
       {% unless page.header.overlay_color or page.header.overlay_image %}
         <header>
           {% if page.title -%}
-          <h1 id="page-title" class="page__title" itemprop="headline">
+          <h1 id="page-title" class="page__title p-name" itemprop="headline">
             <a href="{{ page.url | absolute_url }}" itemprop="url">{{ page.title | markdownify | remove: "<p>" | remove: "</p>" }}</a>
           </h1>
           {%- endif %}
@@ -39,7 +39,7 @@ <h1 id="page-title" class="page__title" itemprop="headline">
         </header>
       {% endunless %}
 
-      <section class="page__content" itemprop="text">
+      <section class="page__content e-content" itemprop="text">
         {% if page.toc %}
           <aside class="sidebar__right {% if page.toc_sticky %}sticky{% endif %}">
             <nav class="toc">