<http://schema.org/description>
"Honestly, I do not personally track Google at the level of looking at my raw log files daily.  But a WebmasterWorld thread describes Google recently (i.e. \"for months\") using HEAD only requests for cr"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/004079.html>