title: MIME media type (content type) for representing a URL?
body: <p>I'm looking for the correct MIME media type (or content type) for documents that contain a single URL such as <strong><a href="http://example.com/123/abc" rel="noreferrer">http://example.com/123/abc</a></strong>. </p>
  
  <p>I checked IANA's <a href="http://www.iana.org/assignments/media-types" rel="noreferrer">MIME type registry</a>, but couldn't find a suitable one for a URL or URI.</p>
  
  <p>Should I create a custom MIME type for this purpose or use the closest registered that applies? It will be used by a RESTful API that returns a URL in the HTTP body for specific calls, to differentiate from others that do not.</p>