ns.rcp.net.PE has no CNAME records.
Question and response
Question
dig ns.rcp.net.PE. NS
Answer
The response has no answer records.
Authority
rcp.net.PE. 2408 SOA NS.RCP.NET.PE.net. operador.rcp.PE. 2026030307 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0