<http://schema.org/description>
"A DigitalPoint Forums member is concerned about the heavy crawling performed by the Googlebot.  He claims that Google is crawling 3GB of data from his site a month and wants to reduce this as it's a b"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/014895.html>