<https://elegantcode.com/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/0be19e8b6fec5e0d04a967acb54133cd?s=96&d=mm&r=pg>
<https://elegantcode.com/2009/05/04/jquery-ajax-with-class-arrays/>