_carddav._tcp.python.bspconsults.com has no CNAME records.
Question and response
Question
dig _carddav._tcp.python.bspconsults.com. NS
Answer
The response has no answer records.
Authority
bspconsults.com. 10715 SOA ns1.bspconsults.com. brentp35900.yahoo.com. 2025060924 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0