kennstdueinen.de

Checked 21 October 2026, 23:02 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

ns1.hosting.de, ns2.hosting.de, ns3.hosting.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.hosting.de, ns2.hosting.de, ns3.hosting.de
NS in the zone
ns1.hosting.de, ns2.hosting.de, ns3.hosting.de
NameserverAddressesNetwork (AS)Glue
ns1.hosting.de134.0.30.178 2a03:2900:3:1::2AS48823 AS48823 - Hosting.de GmbH, DE AS48823 AS48823 - Hosting.de GmbH, DE134.0.30.178 2a03:2900:3:1::2
ns2.hosting.de194.50.113.2 2001:4d8f:2::2AS41637 ROUTING-ANYCAST - Hosting.de GmbH, DE AS41637 ROUTING-ANYCAST - Hosting.de GmbH, DE194.50.113.2 2001:4d8f:2::2
ns3.hosting.de194.126.196.2 2a03:2902:3:1::2AS31400 ACCELERATED-IT - firstcolo GmbH, DE AS31400 ACCELERATED-IT - firstcolo GmbH, DE194.126.196.2 2a03:2902:3:1::2

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.hosting.de, ns2.hosting.de, ns3.hosting.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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS31400 (ACCELERATED-IT - firstcolo GmbH, DE): 2 addresses; AS41637 (ROUTING-ANYCAST - Hosting.de GmbH, DE): 2 addresses; AS48823 (AS48823 - Hosting.de GmbH, DE): 2 addresses.
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.hosting.de 134.0.30.178NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns1.hosting.de 2a03:2900:3:1::2NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns2.hosting.de 194.50.113.2NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns2.hosting.de 2001:4d8f:2::2NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns3.hosting.de 194.126.196.2NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns3.hosting.de 2a03:2902:3:1::2NOERROR, 5 ms, authoritativenoyes / yesrefused-

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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2026090901 · primary ns1.hosting.de

Found

Primary (MNAME)
ns1.hosting.de
Contact (RNAME)
hostmaster.kennstdueinen.de
Serial
2026090901
Refresh / retry
86400 s / 7200 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns1.hosting.de (134.0.30.178)2026090901
ns1.hosting.de (2a03:2900:3:1::2)2026090901
ns2.hosting.de (194.50.113.2)2026090901
ns2.hosting.de (2001:4d8f:2::2)2026090901
ns3.hosting.de (194.126.196.2)2026090901
ns3.hosting.de (2a03:2902:3:1::2)2026090901

Checks

  • ✓ Serial 2026090901 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 28d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.hosting.de is one of the listed nameservers.
  • ✓ Contact hostmaster@kennstdueinen.de #25
    The SOA RNAME hostmaster.kennstdueinen.de means hostmaster@kennstdueinen.de.
  • ✓ Date-based serial #26
    The serial 2026090901 follows the YYYYMMDDnn convention (2026-09-09).

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

9 records at the apex

Found

Read from
134.0.30.178:53
TypeValueTTL
SOAns1.hosting.de. hostmaster.kennstdueinen.de. 2026090901 86400 7200 2419200 9003600
NSns3.hosting.de.3600
NSns2.hosting.de.3600
NSns1.hosting.de.3600
A136.243.143.1053601
MX10 mail.win1.pub.srservers.net.3600
TXT"v=spf1 mx a ip4:168.119.209.163 ip4:94.130.143.239 ip4:94.130.143.240 ip4:23.88.105.105 ip4:195.201.45.208 ip4:85.195.78.185 ip4:136.243.133.226 ip4:136.243.133.227 -all"3600
TXT"MS=ms47356674"3600
TXT"google-site-verification=OgnHQc0BdQiCSamURCHUZrXGz4gaXKL0Kal30CkOfMg"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h0m1s, 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.
  • 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