<https://davidmack.pro/#/schema/person/image/>
<http://schema.org/url>
<https://secure.gravatar.com/avatar/118650ce4acf743b40cb7d1bf0b1c06a?s=96&d=mm&r=g>
<https://davidmack.pro/blog/2010/01/08/analog-tweets-for-2010-01-07/>