DNS 3 NXDOMAIN vs 5 REFUSED
Both DNS 3 (NXDOMAIN) and 5 (REFUSED) belong to the DNS Response Codes (RCODEs) category. 3 indicates that non-Existent Domain. The queried domain name does not exist in the DNS namespace. Meanwhile, 5 means that query refused. The name server refuses to perform the requested operation for policy reasons.
Deskripsi
Non-Existent Domain. The queried domain name does not exist in the DNS namespace.
Ketika Anda Melihatnya
The domain has no DNS records at all — either it was never registered, has expired, or you have a typo in the hostname.
Cara Memperbaiki
Double-check the domain spelling. If you own the domain, verify your registrar settings and ensure the nameservers are correctly delegated.
Deskripsi
Query refused. The name server refuses to perform the requested operation for policy reasons.
Ketika Anda Melihatnya
The server rejected your query due to access control — for example, a recursive resolver that only serves its own network, or a zone transfer blocked by ACL.
Cara Memperbaiki
Check the server's allow-query, allow-recursion, or allow-transfer ACLs. If you are not authorized to use this resolver, switch to a public DNS service.
Perbedaan Utama
DNS 3: Non-Existent Domain. The queried domain name does not exist in the DNS namespace.
DNS 5: Query refused. The name server refuses to perform the requested operation for policy reasons.
You encounter 3 when the domain has no DNS records at all — either it was never registered, has expired, or you have a typo in the hostname.
You encounter 5 when the server rejected your query due to access control — for example, a recursive resolver that only serves its own network, or a zone transfer blocked by ACL.
Kapan Menggunakan Yang Mana
For 3 (NXDOMAIN): Double-check the domain spelling. If you own the domain, verify your registrar settings and ensure the nameservers are correctly delegated. For 5 (REFUSED): Check the server's allow-query, allow-recursion, or allow-transfer ACLs. If you are not authorized to use this resolver, switch to a public DNS service.