ihk24.de

Checked 21 October 2026, 22:52 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 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

info

b.ns14.net, c.ns14.net, d.ns14.net, ns1.ihk.de, ns2.ihk.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
b.ns14.net, c.ns14.net, d.ns14.net, ns1.ihk.de, ns2.ihk.de
NS in the zone
b.ns14.net, c.ns14.net, d.ns14.net, ns1.ihk.de, ns2.ihk.de
NameserverAddressesNetwork (AS)Glue
b.ns14.net217.160.81.160 2001:8d8:fe:53:217:160:81:160AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE-
c.ns14.net185.132.35.160 2607:f1c0:fe:53:185:132:35:160AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
d.ns14.net185.132.34.160 2607:f1c0:fe:53:185:132:34:160AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns1.ihk.de141.88.222.240AS48778 IHK-NET - IHK Gesellschaft fuer Informationsverarbeitung mbH, DE141.88.222.240
ns2.ihk.de141.88.222.241AS48778 IHK-NET - IHK Gesellschaft fuer Informationsverarbeitung mbH, DE141.88.222.241

Checks

  • ✓ 5 nameservers #6
    Delegated to b.ns14.net, c.ns14.net, d.ns14.net, ns1.ihk.de, ns2.ihk.de.
  • ✓ 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 2 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS15418 (IONOS-ANYCAST - Fasthosts Internet Limited, GB): 4 addresses; AS48778 (IHK-NET - IHK Gesellschaft fuer Informationsverarbeitung mbH, DE): 2 addresses; AS8560 (IONOS-AS - IONOS SE, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns1.ihk.de, ns2.ihk.de.
    #13

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
b.ns14.net 217.160.81.160NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
b.ns14.net 2001:8d8:fe:53:217:160:81:160NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
c.ns14.net 185.132.35.160NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
c.ns14.net 2607:f1c0:fe:53:185:132:35:160NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
d.ns14.net 185.132.34.160NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
d.ns14.net 2607:f1c0:fe:53:185:132:34:160NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1.ihk.de 141.88.222.240NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.ihk.de 141.88.222.241NOERROR, 14 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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: b.ns14.net: "Served by PowerDNS - https://www.powerdns.com/"; c.ns14.net: "Served by PowerDNS - https://www.powerdns.com/"; d.ns14.net: "Served by PowerDNS - https://www.powerdns.com/".
    #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 2016090887 · primary ns1.ihk.de

Found

Primary (MNAME)
ns1.ihk.de
Contact (RNAME)
domain.gfi.ihk.de
Serial
2016090887
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
b.ns14.net (217.160.81.160)2016090887
b.ns14.net (2001:8d8:fe:53:217:160:81:160)2016090887
c.ns14.net (185.132.35.160)2016090887
c.ns14.net (2607:f1c0:fe:53:185:132:35:160)2016090887
d.ns14.net (185.132.34.160)2016090887
d.ns14.net (2607:f1c0:fe:53:185:132:34:160)2016090887
ns1.ihk.de (141.88.222.240)2016090887
ns2.ihk.de (141.88.222.241)2016090887

Checks

  • ✓ Serial 2016090887 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ihk.de is one of the listed nameservers.
  • ✓ Contact domain@gfi.ihk.de #25
    The SOA RNAME domain.gfi.ihk.de means domain@gfi.ihk.de.
  • ✓ Date-based serial #26
    The serial 2016090887 follows the YYYYMMDDnn convention (2016-09-08).

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

14 records at the apex

Found

Read from
217.160.81.160:53
TypeValueTTL
SOAns1.ihk.de. domain.gfi.ihk.de. 2016090887 10800 3600 1209600 360086400
NSns2.ihk.de.86400
NSd.ns14.net.86400
NSc.ns14.net.86400
NSb.ns14.net.86400
NSns1.ihk.de.86400
A51.38.104.1453600
MX10 mx04.ihk.de.3600
MX10 mx02.ihk.de.3600
MX10 mx01.ihk.de.3600
TXT"Foxit-domain-verification=aa633616e499ec8345a11b22a1108714"3600
TXT"D-TRUST=MZTPVEIQ54KBTXONUQHDGRS"3600
TXT"v=spf1 include:spf.ihk.de -all"3600
TXT"MS=ms86931967"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • 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