DNS 0 NOERROR vs 3 NXDOMAIN
Both DNS 0 (NOERROR) and 3 (NXDOMAIN) belong to the DNS Response Codes (RCODEs) category. 0 indicates that no error condition. The query completed successfully and the response contains the requested data. Meanwhile, 3 means that non-Existent Domain. The queried domain name does not exist in the DNS namespace.
คำอธิบาย
No error condition. The query completed successfully and the response contains the requested data.
เมื่อคุณพบเห็น
This is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
วิธีแก้ไข
No fix needed. RCODE 0 means the DNS lookup succeeded as expected.
คำอธิบาย
Non-Existent Domain. The queried domain name does not exist in the DNS namespace.
เมื่อคุณพบเห็น
The domain has no DNS records at all — either it was never registered, has expired, or you have a typo in the hostname.
วิธีแก้ไข
Double-check the domain spelling. If you own the domain, verify your registrar settings and ensure the nameservers are correctly delegated.
ความแตกต่างหลัก
DNS 0: No error condition. The query completed successfully and the response contains the requested data.
DNS 3: Non-Existent Domain. The queried domain name does not exist in the DNS namespace.
You encounter 0 when this is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
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.
ควรใช้อันไหนเมื่อไร
For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. For 3 (NXDOMAIN): Double-check the domain spelling. If you own the domain, verify your registrar settings and ensure the nameservers are correctly delegated.