bundesgerichtshof.de

Checked 21 October 2026, 22:00 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 4 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, ns2.itzbund.de, pns.dtag.de, secondary006.dtag.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.itzbund.de, ns2.itzbund.de, pns.dtag.de, secondary006.dtag.net
NS in the zone
ns1.itzbund.de, ns2.itzbund.de, pns.dtag.de, secondary006.dtag.net
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
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
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
secondary006.dtag.net195.244.245.25 2a00:fa8:3:0:100:0:6:1AS5605 NETUSE - NetUSE AG, DE AS5605 NETUSE - NetUSE AG, DE-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.itzbund.de, ns2.itzbund.de, pns.dtag.de, secondary006.dtag.net.
  • ✓ 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: AS3320 (DTAG - Deutsche Telekom AG, DE): 2 addresses; AS35704 (ITZBund - ITZBund, DE): 4 addresses; AS5605 (NETUSE - NetUSE AG, DE): 2 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

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.itzbund.de 80.245.159.11NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1.itzbund.de 2a09:1480:0:8::10NOERROR, 5 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-
pns.dtag.de 194.25.0.125NOERROR, 9 ms, authoritativenoyes / yesrefusedDomainNameServer
pns.dtag.de 2003:40:8000::100NOERROR, 7 ms, authoritativenoyes / yesrefusedDomainNameServer
secondary006.dtag.net 195.244.245.25NOERROR, 12 ms, authoritativenoyes / yesrefusedDomainNameServer
secondary006.dtag.net 2a00:fa8:3:0:100:0:6:1NOERROR, 16 ms, authoritativenoyes / yesrefusedDomainNameServer

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: pns.dtag.de: "DomainNameServer"; secondary006.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 2026010803 · primary ns1.itzbund.de

Found

Primary (MNAME)
ns1.itzbund.de
Contact (RNAME)
hostmaster.itzbund.de
Serial
2026010803
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.itzbund.de (80.245.159.11)2026010803
ns1.itzbund.de (2a09:1480:0:8::10)2026010803
ns2.itzbund.de (80.245.159.12)2026010803
ns2.itzbund.de (2a09:1480:0:8::11)2026010803
pns.dtag.de (194.25.0.125)2026010803
pns.dtag.de (2003:40:8000::100)2026010803
secondary006.dtag.net (195.244.245.25)2026010803
secondary006.dtag.net (2a00:fa8:3:0:100:0:6:1)2026010803

Checks

  • ✓ Serial 2026010803 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 2026010803 follows the YYYYMMDDnn convention (2026-01-08).

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

6 records at the apex

Found

Read from
80.245.159.11:53
TypeValueTTL
SOAns1.itzbund.de. hostmaster.itzbund.de. 2026010803 10800 3600 1209600 864007200
NSns1.itzbund.de.7200
NSsecondary006.dtag.net.7200
NSpns.dtag.de.7200
NSns2.itzbund.de.7200
A80.245.145.757200

Checks

  • ✓ TTLs within range #32
    TTLs: A 2h, NS 2h. The NS TTL at the parent is 1d and in the zone 2h; 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