<http://schema.org/description>
"A Google Webmaster Help thread has one webmaster complaining his site isn't being crawled by Google and isn't showing up in the search results.  The reason, his site can't handle Googlebot crawling it"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-fetch-googlebot-speed-17856.html>