<https://silviacavalieri.com/#/schema/person/image/>
<http://schema.org/url>
<https://secure.gravatar.com/avatar/242e0f10ce82463fcafe050a41b2e806?s=96&d=mm&r=g>
<https://silviacavalieri.com/2015/02/11/avviso-ai-lettori/>