ofb1.blockchainarsys.es has no NS records.
NS records for this zone are defined at blockchainarsys.es.
NS records for this zone are defined at blockchainarsys.es.
Question and response
Question
dig ofb1.blockchainarsys.es. NS
Answer
The response has no answer records.
Authority
blockchainarsys.es. 60 SOA dns3.servidoresdns.net. hostmaster.servidoresdns.net. 2022031675 21600 3600 2419200 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0