<http://schema.org/description>
"Mobile web browsing is very different, at the network level, to browsing   on a desktop machine connected to the Internet. Yet both use the very   same protocols, and although TCP was designed to perform well on the   fixed-line Internet, it..."^^<http://www.w3.org/2001/XMLSchema#string>
<https://blog.cloudflare.com/why-mobile-performance-is-difficult/>