dzhk.de

Checked 21 October 2026, 22:15 UTC · via 8.8.8.8
!Passed with warnings
21 passed 1 warning 0 failed 7 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

lvps87-230-95-44.dedicated.hosteurope.de, ns2.dzhk.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
lvps87-230-95-44.dedicated.hosteurope.de, ns2.dzhk.de
NS in the zone
lvps87-230-95-44.dedicated.hosteurope.de, ns2.dzhk.de
NameserverAddressesNetwork (AS)Glue
lvps87-230-95-44.dedicated.hosteurope.de87.230.95.44AS8972 GD-EMEA-DC-SXB1 - Host Europe GmbH, DE-
ns2.dzhk.de92.205.234.139 2a00:1169:11d:1520::AS21499 GODADDY-SXB - Host Europe GmbH, DE AS21499 GODADDY-SXB - Host Europe GmbH, DE92.205.234.139 2a00:1169:11d:1520::

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: lvps87-230-95-44.dedicated.hosteurope.de, ns2.dzhk.de.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns2.dzhk.de.
  • ✓ 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 2 IPv4 /24s and 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS21499 (GODADDY-SXB - Host Europe GmbH, DE): 2 addresses; AS8972 (GD-EMEA-DC-SXB1 - Host Europe GmbH, DE): 1 address.
  • i
    All nameserver names under .de
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • i
    Partly IPv6
    These nameservers have no IPv6 address: lvps87-230-95-44.dedicated.hosteurope.de.
    #13

Nameservers

info

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
lvps87-230-95-44.dedicated.hosteurope.de 87.230.95.44NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns2.dzhk.de 92.205.234.139NOERROR, 11 ms, authoritativenoyes / yesrefusednone
ns2.dzhk.de 2a00:1169:11d:1520::NOERROR, 11 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 3 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: ns2.dzhk.de: "none".
    #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 2026072701 · primary ns2.dzhk.de

Found

Primary (MNAME)
ns2.dzhk.de
Contact (RNAME)
koester.mastermedia.com
Serial
2026072701
Refresh / retry
3600 s / 1800 s
Expire
604800 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
lvps87-230-95-44.dedicated.hosteurope.de (87.230.95.44)2026072701
ns2.dzhk.de (92.205.234.139)2026072701
ns2.dzhk.de (2a00:1169:11d:1520::)2026072701

Checks

  • ✓ Serial 2026072701 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 30m, expire 7d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns2.dzhk.de is one of the listed nameservers.
  • ✓ Contact koester@mastermedia.com #25
    The SOA RNAME koester.mastermedia.com means koester@mastermedia.com.
  • ✓ Date-based serial #26
    The serial 2026072701 follows the YYYYMMDDnn convention (2026-07-27).

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

11 records at the apex

Found

Read from
87.230.95.44:53
TypeValueTTL
SOAns2.dzhk.de. koester.mastermedia.com. 2026072701 3600 1800 604800 9003600
NSlvps87-230-95-44.dedicated.hosteurope.de.3600
NSns2.dzhk.de.3600
A212.53.214.483600
MX0 dzhk-de.mail.protection.outlook.com.3600
TXT"MS=ms56376960"3600
TXT"ttlsh7prkiqfb96dmf86j55cmi"3600
TXT"v=spf1 +a +mx ip4:212.53.214.48 ip4:213.146.75.106 ip4:87.230.95.44 ip4:217.92.156.50 ip4:90.187.20.61 include:spf.emailsys.net include:spf.protection.outlook.com include:_spf.zimpel.de -all"3600
TXT"hpduqk646ie31lr9ri2bu0ep2b"3600
TXT"google-site-verification=8SBig9HqsiSFhxWbUkUZXrP-_gOFsFPsNbBiD44PsTY"3600
TXT"brevo-code:b261502da7f1e42a0d9c9e7431f91508"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