thoth.tsysecom.com has no CNAME records.
Question and response
Question
dig thoth.tsysecom.com. NS
Answer
The response has no answer records.
Authority
tsysecom.com. 3565 SOA ns1.tsysecom.com. hostmaster.ns1.tsysecom.com. 2025102801 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0