filter-a.yachay.pe has no CNAME records.
Question and response
Question
dig filter-a.yachay.pe. NS
Answer
The response has no answer records.
Authority
yachay.PE. 4806 SOA ns.rcp.net.PE. operador.rcp.PE. 2026022603 7200 300 604800 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0