pro-lbvs0-gva-i-mxexterno.gva.es has no NS records.
NS records for this zone are defined at gva.es.
NS records for this zone are defined at gva.es.
Question and response
Question
dig pro-lbvs0-gva-i-mxexterno.gva.es. NS
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0