kultus-bw.de

Checked 21 October 2026, 23:10 UTC · via 8.8.8.8
iAll checks passed
26 passed 0 warnings 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

ns3.powerdns.de, ns4.powerdns.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns3.powerdns.de, ns4.powerdns.de
NS in the zone
ns3.powerdns.de, ns4.powerdns.de
NameserverAddressesNetwork (AS)Glue
ns3.powerdns.de194.117.254.28 2a05:d580:0:1337::1cAS199753 UDMEDIA-AS - UD Media GmbH, DE AS199753 UDMEDIA-AS - UD Media GmbH, DE194.117.254.28 2a05:d580:0:1337::1c
ns4.powerdns.de116.203.122.234 2a01:4f8:c2c:17c6::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE116.203.122.234 2a01:4f8:c2c:17c6::1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.powerdns.de, ns4.powerdns.de.
    #6
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS199753 (UDMEDIA-AS - UD Media GmbH, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online 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

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns3.powerdns.de 194.117.254.28NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.powerdns.de 2a05:d580:0:1337::1cNOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns4.powerdns.de 116.203.122.234NOERROR, 2 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns4.powerdns.de 2a01:4f8:c2c:17c6::1NOERROR, 2 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 4 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: ns3.powerdns.de: "Served by PowerDNS - https://www.powerdns.com/"; ns4.powerdns.de: "Served by PowerDNS - https://www.powerdns.com/".
    #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 2026080504 · primary ns3.powerdns.de

Found

Primary (MNAME)
ns3.powerdns.de
Contact (RNAME)
technik.udmedia.de
Serial
2026080504
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns3.powerdns.de (194.117.254.28)2026080504
ns3.powerdns.de (2a05:d580:0:1337::1c)2026080504
ns4.powerdns.de (116.203.122.234)2026080504
ns4.powerdns.de (2a01:4f8:c2c:17c6::1)2026080504

Checks

  • ✓ Serial 2026080504 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.powerdns.de is one of the listed nameservers.
  • ✓ Contact technik@udmedia.de #25
    The SOA RNAME technik.udmedia.de means technik@udmedia.de.
  • ✓ Date-based serial #26
    The serial 2026080504 follows the YYYYMMDDnn convention (2026-08-05).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
51308ECDSAP256SHA256 (13)SHA256 326F443150D7C312…yes

DNSKEY in the zone

Key tagRoleAlgorithm
51308KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 51308 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

7 records at the apex

Found

Read from
194.117.254.28:53
TypeValueTTL
SOAns3.powerdns.de. technik.udmedia.de. 2026080504 10800 3600 1209600 36003600
NSns3.powerdns.de.3600
NSns4.powerdns.de.3600
A195.82.81.363600
MX10 mail.ud10.udmedia.de.3600
TXT"google-site-verification=JvUxd5ToPA_fiQggJSttbHCRVQZtkUrrKZmucaUcCyk"3600
TXT"v=spf1 +a +mx ip4:195.227.213.228 ip4:195.227.213.229 ip4:195.227.213.231 ip4:195.227.213.232 ip4:193.197.148.18 ip4:129.143.97.21 ip4:129.143.97.28 ip4:129.143.97.10 ip4:129.143.97.27 include:spf.secure-mail.pironet-ndh.com include:spf.nl2go.com include:" "_smtp.udag.de -all"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