THE RECORDS BEHIND THE NAME
DNS lookup.
Explore resource records, mail routing and reverse DNS.
Public IPs automatically use PTR. Common records queries A, AAAA, MX, NS, CNAME, TXT, SOA and CAA separately.
Querying DNS records…
DNS
4 answer records · Partialncnu.edu.tw
MX: resolver returned SERVFAIL. This is a DNS error, not an empty record set.
TXT: resolver returned SERVFAIL. This is a DNS error, not an empty record set.
ANOERROR · no answersAD no
AAAANOERROR · no answersAD no
MXSERVFAILAD noEDE(9): DNSKEY Missing failed to verify signatures for ncnu.edu.tw. opt-out proof: for RRSIG 4MMILF9GNF0BEUONCTPHONOTGQTK6B98.edu.tw. NSEC3
NSNOERRORAD no
CNAMENOERROR · no answersAD no
TXTSERVFAILAD noEDE(9): DNSKEY Missing failed to verify signatures for ncnu.edu.tw. opt-out proof: for RRSIG 4MMILF9GNF0BEUONCTPHONOTGQTK6B98.edu.tw. NSEC3
SOANOERRORAD no
CAANOERROR · no answersAD no
AD indicates that the resolver reports DNSSEC-validated data. “AD no” can also mean the zone is unsigned. NXDOMAIN is a DNS result, not a domain-availability check.
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| NS | ncnu.edu.tw | 7200 | dns3.twaren.net. | DNS → |
| NS | ncnu.edu.tw | 7200 | academic.ncnu.edu.tw. | DNS → |
| NS | ncnu.edu.tw | 7200 | taurus.ncnu.edu.tw. | DNS → |
| SOA | ncnu.edu.tw | 7200 | academic.ncnu.edu.tw. ccunix.ncnu.edu.tw. 2026100501 300 60 604800 3600 | — |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | ncnu.edu.tw | 3600 | academic.ncnu.edu.tw. ccunix.ncnu.edu.tw. 2026100501 300 60 604800 3600 | — |
Results reflect the public DNS view and recursive caching; they may differ from your local network. TXT strings retain their DNS quoting. Common records does not enumerate every name or record in a zone.