politik-digital.de

Checked 21 October 2026, 23:50 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 5 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

ns0.netzlaboranten.de, ns3.netzlaboranten.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns0.netzlaboranten.de, ns3.netzlaboranten.de
NS in the zone
ns0.netzlaboranten.de, ns3.netzlaboranten.de
NameserverAddressesNetwork (AS)Glue
ns0.netzlaboranten.de95.216.29.96AS24940 HETZNER-AS - Hetzner Online GmbH, DE95.216.29.96
ns3.netzlaboranten.de91.241.44.103AS29551 HGCOMP-ASN - Aixit GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns0.netzlaboranten.de, ns3.netzlaboranten.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 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 1 address; AS29551 (HGCOMP-ASN - Aixit 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

warn

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns0.netzlaboranten.de 95.216.29.96NOERROR, 26 ms, authoritativenoyes / yesrefused9.20.18-1~deb13u1-Debian
ns3.netzlaboranten.de 91.241.44.103NOERROR, 4 ms, authoritativenoyes / yesrefusednone

Checks

  • ✓ All respond #14
    All 2 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns0.netzlaboranten.de: "9.20.18-1~deb13u1-Debian". Hide or replace the version string.
    #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 2026090601 · primary ns3.netzlaboranten.de

Found

Primary (MNAME)
ns3.netzlaboranten.de
Contact (RNAME)
admin.nlab-hosting.de
Serial
2026090601
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns0.netzlaboranten.de (95.216.29.96)2026090601
ns3.netzlaboranten.de (91.241.44.103)2026090601

Checks

  • ✓ Serial 2026090601 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.netzlaboranten.de is one of the listed nameservers.
  • ✓ Contact admin@nlab-hosting.de #25
    The SOA RNAME admin.nlab-hosting.de means admin@nlab-hosting.de.
  • ✓ Date-based serial #26
    The serial 2026090601 follows the YYYYMMDDnn convention (2026-09-06).

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
95.216.29.96:53
TypeValueTTL
SOAns3.netzlaboranten.de. admin.nlab-hosting.de. 2026090601 10800 3600 604800 10800600
NSns3.netzlaboranten.de.600
NSns0.netzlaboranten.de.600
A91.241.44.103600
MX10 mail.politik-digital.de.600
TXT"v=spf1 +a +mx +a:ww3.nlab-hosting.de -all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m, NS 10m. The NS TTL at the parent is 1d and in the zone 10m; 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