What about serving the challenge file from the root or a near-root of the fully qualified url? Like www.domain.com/mastodon.txt or abc.freehost.com/mastodon.txt?
Maybe I'm old but what are some popular use cases for webfinger? (I'm just learning about it now)
Maybe I'm old but what are some popular use cases for webfinger? (I'm just learning about it now)