2.5.2. ServiceMode

2.5.2. ServiceMode

For ServiceMode SVCB RRs, if TargetName has the value ".", then the owner name of this record MUST be used as the effective TargetName. If the record has a wildcard owner name in the zone file, the recipient SHALL use the response's synthesized owner name as the effective TargetName.

Here, for example, "svc2.example.net" is the effective TargetName:

example.com.      7200  IN HTTPS 0 svc.example.net.
svc.example.net.  7200  IN CNAME svc2.example.net.
svc2.example.net. 7200  IN HTTPS 1 . port=8002
svc2.example.net. 300   IN A     192.0.2.2
svc2.example.net. 300   IN AAAA  2001:db8::2