<http://schema.org/description>
"NickW over at Search Engine Watch has an excellent post on how to make your Web browsing invisible, he named the post 007 Stealth Browsing with FireFox/Moz.  He explains there are many reasons why one"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/001003.html>