destatis.de

Checked 21 October 2026, 22:13 UTC · via 8.8.8.8
!Passed with warnings
25 passed 1 warning 0 failed 3 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

pass

ns1.itzbund.de, ns17.knipp.net, ns2.itzbund.de, ns3.knipp.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.itzbund.de, ns17.knipp.net, ns2.itzbund.de, ns3.knipp.de
NS in the zone
ns1.itzbund.de, ns17.knipp.net, ns2.itzbund.de, ns3.knipp.de
NameserverAddressesNetwork (AS)Glue
ns1.itzbund.de80.245.159.11 2a09:1480:0:8::10AS35704 ITZBund - ITZBund, DE AS35704 ITZBund - ITZBund, DE80.245.159.11 2a09:1480:0:8::10
ns17.knipp.net195.253.51.61 2a01:5b0:2:56::3dAS8391 KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE AS48519 KNIPP-AMS-AS - Knipp Medien und Kommunikation GmbH, DE-
ns2.itzbund.de80.245.159.12 2a09:1480:0:8::11AS35704 ITZBund - ITZBund, DE AS35704 ITZBund - ITZBund, DE80.245.159.12 2a09:1480:0:8::11
ns3.knipp.de195.253.113.3 2a01:5b0:31::3AS8391 KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE AS8391 KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.itzbund.de, ns17.knipp.net, ns2.itzbund.de, ns3.knipp.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: AS35704 (ITZBund - ITZBund, DE): 4 addresses; AS48519 (KNIPP-AMS-AS - Knipp Medien und Kommunikation GmbH, DE): 1 address; AS8391 (KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE): 3 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.itzbund.de 80.245.159.11NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns1.itzbund.de 2a09:1480:0:8::10NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns17.knipp.net 195.253.51.61NOERROR, 35 ms, authoritativenoyes / yesrefused-
ns17.knipp.net 2a01:5b0:2:56::3dNOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.itzbund.de 80.245.159.12NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2.itzbund.de 2a09:1480:0:8::11NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns3.knipp.de 195.253.113.3NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns3.knipp.de 2a01:5b0:31::3NOERROR, 10 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.
  • ✓ 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 2026101502 · primary ns1.itzbund.de

Found

Primary (MNAME)
ns1.itzbund.de
Contact (RNAME)
hostmaster.itzbund.de
Serial
2026101502
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.itzbund.de (80.245.159.11)2026101502
ns1.itzbund.de (2a09:1480:0:8::10)2026101502
ns17.knipp.net (195.253.51.61)2026101502
ns17.knipp.net (2a01:5b0:2:56::3d)2026101502
ns2.itzbund.de (80.245.159.12)2026101502
ns2.itzbund.de (2a09:1480:0:8::11)2026101502
ns3.knipp.de (195.253.113.3)2026101502
ns3.knipp.de (2a01:5b0:31::3)2026101502

Checks

  • ✓ Serial 2026101502 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.itzbund.de is one of the listed nameservers.
  • ✓ Contact hostmaster@itzbund.de #25
    The SOA RNAME hostmaster.itzbund.de means hostmaster@itzbund.de.
  • ✓ Date-based serial #26
    The serial 2026101502 follows the YYYYMMDDnn convention (2026-10-15).

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

10 records at the apex

Found

Read from
80.245.159.11:53
TypeValueTTL
SOAns1.itzbund.de. hostmaster.itzbund.de. 2026101502 10800 3600 1209600 864003600
NSns3.knipp.de.3600
NSns2.itzbund.de.3600
NSns1.itzbund.de.3600
NSns17.knipp.net.3600
A185.85.1.2133600
MX0 mx2.bund.de.3600
MX0 mx1.bund.de.3600
TXT"v=spf1 include:_spf1.bund.de -all"3600
TXT"D-TRUST=COJFVSNU8EJ65JJ6EQWK9YH"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