antidiskriminierungsstelle.de

Checked 21 October 2026, 21:30 UTC · via 8.8.8.8
✗Problems found
23 passed 1 warning 1 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-any.123ns.eu, ns3-any.123ns.eu, ns4-any.123ns.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1-any.123ns.eu, ns3-any.123ns.eu, ns4-any.123ns.de
NS in the zone
ns1-any.123ns.eu, ns3-any.123ns.eu, ns4-any.123ns.de
NameserverAddressesNetwork (AS)Glue
ns1-any.123ns.eu195.253.64.5 2a01:5b0:4::5AS8561 KNIPPWORLDWIDE - Knipp Medien und Kommunikation GmbH, DE AS8561 KNIPPWORLDWIDE - Knipp Medien und Kommunikation GmbH, DE-
ns3-any.123ns.eu192.174.68.116 2001:67c:1bc::116AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns4-any.123ns.de176.97.158.116 2001:67c:10b8::116AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1-any.123ns.eu, ns3-any.123ns.eu, ns4-any.123ns.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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses; AS8561 (KNIPPWORLDWIDE - Knipp Medien und Kommunikation GmbH, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .eu.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

4 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1-any.123ns.eu 195.253.64.5NOERROR, 25 ms, authoritativenoyes / yesrefused-
ns1-any.123ns.eu 2a01:5b0:4::5NOERROR, 24 ms, authoritativenoyes / yesrefused-
ns3-any.123ns.eu 192.174.68.116NOERROR, 3 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns3-any.123ns.eu 2001:67c:1bc::116NOERROR, 9 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns4-any.123ns.de 176.97.158.116no responsenono / no--
ns4-any.123ns.de 2001:67c:10b8::116no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns4-any.123ns.de (176.97.158.116): read udp 46.225.38.91:34161->176.97.158.116:53: i/o timeout; ns4-any.123ns.de (2001:67c:10b8::116): read udp [2a01:4f8:1c1c:eebf::1]:59421->[2001:67c:10b8::116]:53: i/o timeout.
    #14
  • ✓ 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: ns3-any.123ns.eu: "RcodeZero DNS".
    #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 2026010500 · primary ns1-any.123ns.eu

Found

Primary (MNAME)
ns1-any.123ns.eu
Contact (RNAME)
hostmaster.123ns.eu
Serial
2026010500
Refresh / retry
86400 s / 7200 s
Expire
3600000 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1-any.123ns.eu (195.253.64.5)2026010500
ns1-any.123ns.eu (2a01:5b0:4::5)2026010500
ns3-any.123ns.eu (192.174.68.116)2026010500
ns3-any.123ns.eu (2001:67c:1bc::116)2026010500

Checks

  • ✓ Serial 2026010500 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 1000h, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1-any.123ns.eu is one of the listed nameservers.
  • ✓ Contact hostmaster@123ns.eu #25
    The SOA RNAME hostmaster.123ns.eu means hostmaster@123ns.eu.
  • ✓ Date-based serial #26
    The serial 2026010500 follows the YYYYMMDDnn convention (2026-01-05).

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
195.253.64.5:53
TypeValueTTL
SOAns1-any.123ns.eu. hostmaster.123ns.eu. 2026010500 86400 7200 3600000 8640086400
NSns4-any.123ns.de.86400
NSns1-any.123ns.eu.86400
NSns3-any.123ns.eu.86400
A80.245.144.250300
MX10 mail.antidiskriminierungsstelle.de.86400
TXT"D-TRUST=WVRNCRDK7SCGSQCOF3GZWMF"86400
TXT"v=spf1 mx a:mail.123domain.eu a:smtp1.mail.123domain.eu a:smtp2.mail.123domain.eu -all"86400
TXT"D-TRUST=YOH67LCYJ4EBPTSPTBGJNR2"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1d, NS 1d.
  • ✓ 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