<https://seo.tbwakorea.com/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/66f860311021e9077d0b79a0a879bcec?s=96&d=identicon&r=g>
<https://seo.tbwakorea.com/blog/use-bard-for-seo/>