If you are owner of a .bch domain, you can set 'ContentHash' or 'URL' in the app https://app.bch.domains

This service redirects to a resolved external link first using 'ContentHash'

It will fall back to a link set in 'URL' field

You can set content to any other field and it will be rendered in this service. E.g. https://lns.bch.is/description