dns123.servidoresph.com has no CNAME records.
Question and response
Question
dig dns123.servidoresph.com. NS
Answer
The response has no answer records.
Authority
servidoresph.com. 1800 SOA andy.ns.cloudflare.com. dns.cloudflare.com. 2398502906 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0