<http://schema.org/description>
"A WebmasterWorld thread had reports that Google had all old cache dates for most sites on the web.  By old, I mean, the last time Google said they \"retrieved\" the site was on the 15th or 16th and it w"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/017764.html>