nuernberger-land.de

Checked 21 October 2026, 23:40 UTC · via 8.8.8.8
!Passed with warnings
28 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

warn

ns.bisping.de, ns2.bisping.de, ns3.bisping.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.bisping.de, ns2.bisping.de, ns3.bisping.de
NS in the zone
ns.bisping.de, ns2.bisping.de, ns3.bisping.de
NameserverAddressesNetwork (AS)Glue
ns.bisping.de62.91.2.20AS20686 BISPING - BISPING, DE62.91.2.20
ns2.bisping.de62.91.92.20AS20686 BISPING - BISPING, DE62.91.92.20
ns3.bisping.de91.99.178.218AS24940 HETZNER-AS - Hetzner Online GmbH, DE91.99.178.218

Checks

  • ✓ 3 nameservers #6
    Delegated to ns.bisping.de, ns2.bisping.de, ns3.bisping.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 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20686 (BISPING - BISPING, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 1 address.
  • 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.bisping.de 62.91.2.20NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns2.bisping.de 62.91.92.20NOERROR, 2 ms, authoritativenoyes / yesrefused-
ns3.bisping.de 91.99.178.218NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 3 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 2026092950 · primary ns.bisping.de

Found

Primary (MNAME)
ns.bisping.de
Contact (RNAME)
hostmaster.bisping.de.nuernberger-land.de
Serial
2026092950
Refresh / retry
10800 s / 3600 s
Expire
2419200 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns.bisping.de (62.91.2.20)2026092950
ns2.bisping.de (62.91.92.20)2026092950
ns3.bisping.de (91.99.178.218)2026092950

Checks

  • ✓ Serial 2026092950 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 28d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.bisping.de is one of the listed nameservers.
  • ✓ Contact hostmaster@bisping.de.nuernberger-land.de #25
    The SOA RNAME hostmaster.bisping.de.nuernberger-land.de means hostmaster@bisping.de.nuernberger-land.de.
  • ✓ Date-based serial #26
    The serial 2026092950 follows the YYYYMMDDnn convention (2026-09-29).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
1 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
59313ECDSAP256SHA256 (13)SHA256 BC300BE867CAB012…yes

DNSKEY in the zone

Key tagRoleAlgorithm
59313KSK (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 59313 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-01 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-01 06:47 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

pass

10 records at the apex

Found

Read from
62.91.2.20:53
TypeValueTTL
SOAns.bisping.de. hostmaster.bisping.de.nuernberger-land.de. 2026092950 10800 3600 2419200 1080014400
NSns3.bisping.de.14400
NSns.bisping.de.14400
NSns2.bisping.de.14400
A192.124.249.2014400
MX10 mail.bayern.de.14400
TXT"v=spf1 include:bayern.de ip4:213.133.107.58 ip4:78.46.167.67 include:spf.ronet.de ip6:2a01:4f8:d0a:2712::2 include:_spf_mx-bb.bisping.de ip4:185.166.22.34 include:agenturserver.de include:ispgateway.de -all"14400
CAA0 issue "digicert.com"14400
CAA0 issue "letsencrypt.org"14400
CAA0 iodef "mailto:cert@nuernberger-land.de"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 4h. The NS TTL at the parent is 1d and in the zone 4h; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, letsencrypt.org.