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
1 answer records · Partialmailgate.ntou.edu.tw
AAAA: resolver returned SERVFAIL. This is a DNS error, not an empty record set.
NS: resolver returned SERVFAIL. This is a DNS error, not an empty record set.
SOA: resolver returned SERVFAIL. This is a DNS error, not an empty record set.
ANOERRORAD no
AAAASERVFAILAD noEDE(9): DNSKEY Missing failed to verify signatures for ntou.edu.tw. opt-out proof: for RRSIG 9QPDMSOMUR51NF90I6SS6MPHOGBECDHB.edu.tw. NSEC3
MXNOERROR · no answersAD no
NSSERVFAILAD noEDE(9): DNSKEY Missing failed to verify signatures for ntou.edu.tw. opt-out proof: for RRSIG 9QPDMSOMUR51NF90I6SS6MPHOGBECDHB.edu.tw. NSEC3
CNAMENOERROR · no answersAD no
TXTNOERROR · no answersAD no
SOASERVFAILAD noEDE(9): DNSKEY Missing failed to verify signatures for ntou.edu.tw. opt-out proof: for RRSIG 9QPDMSOMUR51NF90I6SS6MPHOGBECDHB.edu.tw. NSEC3
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 |
|---|---|---|---|---|
| A | mailgate.ntou.edu.tw | 86400 | 140.121.140.61 | IP WHOIS → |
Authority records · 1
| Type | Name | TTL · seconds | Value | Look up |
|---|---|---|---|---|
| SOA | ntou.edu.tw | 3600 | pt.ntou.edu.tw. thliang.mail.ntou.edu.tw. 2026100801 28800 14400 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.