graupner.de

Checked 21 October 2026, 22:41 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 5 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

warn

ns.gabia.co.kr, ns.gabia.net, ns1.gabia.co.kr

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.gabia.co.kr, ns.gabia.net, ns1.gabia.co.kr
NS in the zone
ns.gabia.co.kr, ns.gabia.net, ns1.gabia.co.kr
NameserverAddressesNetwork (AS)Glue
ns.gabia.co.kr43.201.170.100AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns.gabia.net121.78.117.39 211.234.124.90AS17589 GABIA-AS-KR-KR - GABIA Inc., KR AS3786 LGDACOM-KR - LG DACOM Corporation, KR-
ns1.gabia.co.kr20.200.205.248AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns.gabia.co.kr, ns.gabia.net, ns1.gabia.co.kr.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS16509 (AMAZON-02 - Amazon.com, Inc., US): 1 address; AS17589 (GABIA-AS-KR-KR - GABIA Inc., KR): 1 address; AS3786 (LGDACOM-KR - LG DACOM Corporation, KR): 1 address; AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .kr, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.gabia.co.kr 43.201.170.100NOERROR, 297 ms, authoritativenoyes / yesrefusedgabia-nameserver
ns.gabia.net 121.78.117.39NOERROR, 295 ms, authoritativenoyes / yesrefusedgabia-nameserver
ns.gabia.net 211.234.124.90NOERROR, 227 ms, authoritativenoyes / yesrefusedgabia-nameserver
ns1.gabia.co.kr 20.200.205.248NOERROR, 226 ms, authoritativenoyes / yesrefusedgabia-nameserver

Checks

  • ✓ All respond #14
    All 4 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns.gabia.co.kr: "gabia-nameserver"; ns.gabia.net: "gabia-nameserver"; ns1.gabia.co.kr: "gabia-nameserver".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2020052617 · primary ns.gabia.co.kr

Found

Primary (MNAME)
ns.gabia.co.kr
Contact (RNAME)
hosting.gabia.com
Serial
2020052617
Refresh / retry
1800 s / 600 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns.gabia.co.kr (43.201.170.100)2020052617
ns.gabia.net (121.78.117.39)2020052617
ns.gabia.net (211.234.124.90)2020052617
ns1.gabia.co.kr (20.200.205.248)2020052617

Checks

  • ✓ Serial 2020052617 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 30m, retry 10m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.gabia.co.kr is one of the listed nameservers.
  • ✓ Contact hosting@gabia.com #25
    The SOA RNAME hosting.gabia.com means hosting@gabia.com.
  • ✓ Date-based serial #26
    The serial 2020052617 follows the YYYYMMDDnn convention (2020-05-26).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

5 records at the apex

Found

Read from
43.201.170.100:53
TypeValueTTL
SOAns.gabia.co.kr. hosting.gabia.com. 2020052617 1800 600 1209600 8640086400
NSns.gabia.co.kr.86400
NSns1.gabia.co.kr.86400
NSns.gabia.net.86400
A121.254.178.229600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35