Matthias Pfefferle

David Shanske

IndieWeb

It is only a very basic implementation, because not every element is accessible through actions or filters. It is better to use a theme that supports <a href="http://microformats.org/wiki/microformats2" rel="nofollow ugc">Microformats 2</a> fully.

Microformats 2

Enhances your WordPress theme with Microformats 2 classes.

ryanve

Social media sites often use the image_src microformat for displaying link thumbnails. This simple plugin adds the image_src <a href="http://microformats.org/wiki/existing-rel-values" rel="nofollow ugc">rel value</a> to the code of your site. By default, the plugin applies only to singular views and it uses the <a href="https://codex.wordpress.org/Post_Thumbnails" rel="nofollow ugc">featured image</a>. It only applies when an image is available. The <code>'@image_src'</code> filter hook allows for image customization and/or extending the plugin to other views.

Microformats 2 vs image_src