pi.sebi.org has no CNAME records.
Question and response
Question
dig pi.sebi.org. NS
Answer
The response has no answer records.
Authority
sebi.org. 3600 SOA root-dns.netcup.net. dnsadmin.netcup.net. 2026022876 14400 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0