<http://schema.org/url>
<http://thenextweb.com/google/2014/06/05/googles-search-results-now-warn-you-when-a-webpage-is-not-optimized-for-mobile/>
<http://thenextweb.com/google/2014/06/05/googles-search-results-now-warn-you-when-a-webpage-is-not-optimized-for-mobile/>