arago.edu.do has no CNAME records.
Question and response
Question
dig arago.edu.do. NS
Answer
The response has no answer records.
Authority
edu.do. 3592 SOA ns1.nic.do. hostmaster.nic.do. 2026030619 3600 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0