huk24.de

Checked 21 October 2026, 22:51 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

dnsx2306.huk-coburg.de, pns.dtag.de, secondary004.dtag.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dnsx2306.huk-coburg.de, pns.dtag.de, secondary004.dtag.net
NS in the zone
dnsx2306.huk-coburg.de, ns2.huk-coburg.de, pns.dtag.de, secondary004.dtag.net
NameserverAddressesNetwork (AS)Glue
dnsx2306.huk-coburg.de193.201.183.131AS25109 HUK-COBURG - HUK-COBURG VVaG, DE193.201.183.131
ns2.huk-coburg.de (zone only)193.201.183.130AS25109 HUK-COBURG - HUK-COBURG VVaG, DE-
pns.dtag.de194.25.0.125 2003:40:8000::100AS3320 DTAG - Deutsche Telekom AG, DE AS3320 DTAG - Deutsche Telekom AG, DE194.25.0.125 2003:40:8000::100
secondary004.dtag.net195.244.245.27 2a00:fa8:3:0:100:0:4:1AS5605 NETUSE - NetUSE AG, DE AS5605 NETUSE - NetUSE AG, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to dnsx2306.huk-coburg.de, pns.dtag.de, secondary004.dtag.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: ns2.huk-coburg.de. dnsx2306.huk-coburg.de, ns2.huk-coburg.de, pns.dtag.de, secondary004.dtag.net report NS dnsx2306.huk-coburg.de ns2.huk-coburg.de pns.dtag.de secondary004.dtag.net.
    #7
  • ✓ 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 3 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS25109 (HUK-COBURG - HUK-COBURG VVaG, DE): 2 addresses; AS3320 (DTAG - Deutsche Telekom AG, DE): 2 addresses; AS5605 (NETUSE - NetUSE AG, 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: dnsx2306.huk-coburg.de, ns2.huk-coburg.de.
    #13

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dnsx2306.huk-coburg.de 193.201.183.131NOERROR, 15 ms, authoritativenoyes / yesrefused-
ns2.huk-coburg.de 193.201.183.130NOERROR, 15 ms, authoritativenoyes / yesrefused-
pns.dtag.de 194.25.0.125NOERROR, 9 ms, authoritativenoyes / yesrefusedDomainNameServer
pns.dtag.de 2003:40:8000::100NOERROR, 7 ms, authoritativenoyes / yesrefusedDomainNameServer
secondary004.dtag.net 195.244.245.27NOERROR, 12 ms, authoritativenoyes / yesrefusedDomainNameServer
secondary004.dtag.net 2a00:fa8:3:0:100:0:4:1NOERROR, 17 ms, authoritativenoyes / yesrefusedDomainNameServer

Checks

  • ✓ All respond #14
    All 6 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: pns.dtag.de: "DomainNameServer"; secondary004.dtag.net: "DomainNameServer".
    #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 2015041976 · primary dnsx2306.huk-coburg.de

Found

Primary (MNAME)
dnsx2306.huk-coburg.de
Contact (RNAME)
hostmaster.huk-coburg.de
Serial
2015041976
Refresh / retry
10800 s / 1800 s
Expire
2851200 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dnsx2306.huk-coburg.de (193.201.183.131)2015041976
ns2.huk-coburg.de (193.201.183.130)2015041976
pns.dtag.de (194.25.0.125)2015041976
pns.dtag.de (2003:40:8000::100)2015041976
secondary004.dtag.net (195.244.245.27)2015041976
secondary004.dtag.net (2a00:fa8:3:0:100:0:4:1)2015041976

Checks

  • ✓ Serial 2015041976 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 30m, expire 33d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dnsx2306.huk-coburg.de is one of the listed nameservers.
  • ✓ Contact hostmaster@huk-coburg.de #25
    The SOA RNAME hostmaster.huk-coburg.de means hostmaster@huk-coburg.de.
  • ✓ Date-based serial #26
    The serial 2015041976 follows the YYYYMMDDnn convention (2015-04-19).

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

16 records at the apex

Found

Read from
193.201.183.131:53
TypeValueTTL
SOAdnsx2306.huk-coburg.de. hostmaster.huk-coburg.de. 2015041976 10800 1800 2851200 360043200
NSns2.huk-coburg.de.3600
NSsecondary004.dtag.net.3600
NSdnsx2306.huk-coburg.de.3600
NSpns.dtag.de.3600
A18.198.131.413600
A18.153.7.1193600
A18.158.245.163600
MX10 smtp2.huk-coburg.de.3600
MX10 smtp1.huk-coburg.de.3600
TXT"cisco-ci-domain-verification=24df624d9f9d760b12d78007a1d5c5fd7dc39886a4da51b3e5e0b4e0a56ba313"3600
TXT"v=spf1 +mx +ip4:193.201.183.0/24 ~all"3600
TXT"MS=ms90873937"3600
TXT"_telesec-domain-validation=350237_2025-06-13_nkjxgoSimTh3tyASKGiqnDJs5ray8Q2y5qTkIRwZnrOJdMRDgI"3600
TXT"adobe-idp-site-verification=1e6abb62be64ec101b60c36a6f63f0de12566942a4a5fff6b0245ba34aaa2a1c"3600
TXT"google-site-verification=3ZQXw0IyNa4RlPuAu5aHnPwbV_J_wJQdhk5q95Lz4Gc"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
  • ✓ 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