@danieldekay @NickBohle @pfefferle
Yes, lookup should work.
Requested now
https://www.rhein-neckar-tango.de/?author=0
as described in the #WebFinger result for "type": "application/activity+json"
with "Accept: application/activity+json"
and got a 403.
HTTP/1.1 403 Forbidden
Server: nginx