goip.de

Checked 21 October 2026, 22:40 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 5 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
Public suffix
.goip.de
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. Domains are registered under the public suffix .goip.de.
    #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

exodus.serverhimmel.de, genesis.serverhimmel.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
exodus.serverhimmel.de, genesis.serverhimmel.de
NS in the zone
exodus.serverhimmel.de, genesis.serverhimmel.de
NameserverAddressesNetwork (AS)Glue
exodus.serverhimmel.de87.106.71.11 2a01:239:2af:c600::1AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE87.106.71.11 2a01:239:2af:c600::1
genesis.serverhimmel.de37.221.192.226 2a03:4000:8:2d8::1AS197540 netcup-AS - netcup GmbH, DE AS197540 netcup-AS - netcup GmbH, DE37.221.192.226 2a03:4000:8:2d8::1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: exodus.serverhimmel.de, genesis.serverhimmel.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: AS197540 (netcup-AS - netcup GmbH, DE): 2 addresses; AS8560 (IONOS-AS - IONOS SE, 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

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
exodus.serverhimmel.de 87.106.71.11NOERROR, 13 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
exodus.serverhimmel.de 2a01:239:2af:c600::1NOERROR, 14 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
genesis.serverhimmel.de 37.221.192.226NOERROR, 1 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
genesis.serverhimmel.de 2a03:4000:8:2d8::1NOERROR, 1 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: exodus.serverhimmel.de: "PowerDNS Authoritative Server 4.7.3"; genesis.serverhimmel.de: "PowerDNS Authoritative Server 4.7.3". 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 2023060601 · primary genesis.serverhimmel.de

Found

Primary (MNAME)
genesis.serverhimmel.de
Contact (RNAME)
admin.serverhimmel.de
Serial
2023060601
Refresh / retry
28800 s / 3600 s
Expire
1814400 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
exodus.serverhimmel.de (87.106.71.11)2023060601
exodus.serverhimmel.de (2a01:239:2af:c600::1)2023060601
genesis.serverhimmel.de (37.221.192.226)2023060601
genesis.serverhimmel.de (2a03:4000:8:2d8::1)2023060601

Checks

  • ✓ Serial 2023060601 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 1h, expire 21d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver genesis.serverhimmel.de is one of the listed nameservers.
  • ✓ Contact admin@serverhimmel.de #25
    The SOA RNAME admin.serverhimmel.de means admin@serverhimmel.de.
  • ✓ Date-based serial #26
    The serial 2023060601 follows the YYYYMMDDnn convention (2023-06-06).

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

7 records at the apex

Found

Read from
87.106.71.11:53
TypeValueTTL
SOAgenesis.serverhimmel.de. admin.serverhimmel.de. 2023060601 28800 3600 1814400 180010800
NSexodus.serverhimmel.de.10800
NSgenesis.serverhimmel.de.10800
A37.221.192.22610800
MX10 genesis.serverhimmel.de.10800
TXT"Thank you for using the dynamic DNS services from GoIP."10800
TXT"v=spf1 mx -all"10800

Checks

  • ✓ TTLs within range #32
    TTLs: A 3h, MX 3h, NS 3h. The NS TTL at the parent is 1d and in the zone 3h; 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