<https://activecampaign.memberium.com/#/schema/person/image/>
<http://schema.org/url>
<https://secure.gravatar.com/avatar/f921ddf4691cb8b923619807142b204f?s=96&d=retro&r=g>
<https://activecampaign.memberium.com/how-to-configure-wp-engine-to-run-memberium/>