HTML+RDFa

Based on an HTML document, this encoding processes nodes with RDFa-related attributes, such as property and typeof.

<html>
  <body>
    <div vocab="https://schema.org/" typeof="WebSite">
      <a href="https://schemamarkup.app/" property="url">
        <span property="name">Schema Markup</span>
      </a>
    </div>
  </body>
</html>

References

Specifications: RDFa Core 1.1 - Third Edition; HTML+RDFa 1.1 - Second Edition; XHTML+RDFa 1.1 - Third Edition
Media Type: application/xhtml+xml (or text/html, text/xhtml)
File Name: *.html (or *.htm)