<http://schema.org/description>
"Some Google AdSense publishers are reporting seeing AdSense ad units without the URL and fav icon displaying.Folks at WebmasterWorld have reported this saying Google is testing an ad unit that removes"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-adsense-ad-no-url-18687.html>