brain.university.de.com has no CNAME records.
Question and response
Question
dig brain.university.de.com. NS
Answer
The response has no answer records.
Authority
university.de.com. 3512 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1767371641 43200 3600 604800 3601
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0