greatnet.de

Checked 21 October 2026, 22:41 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

info

ns1.greatnet.de, ns2.greatnet.de, ns3.greatnet.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.greatnet.de, ns2.greatnet.de, ns3.greatnet.de
NS in the zone
ns1.greatnet.de, ns2.greatnet.de, ns3.greatnet.de
NameserverAddressesNetwork (AS)Glue
ns1.greatnet.de87.238.196.17 2a00:6800:200:1::17AS42730 EVANZOAS - EVANZO e-commerce GmbH, DE AS42730 EVANZOAS - EVANZO e-commerce GmbH, DE87.238.196.17 2a00:6800:200:1::17
ns2.greatnet.de178.254.5.17 2a00:6800:200:2::17AS42730 EVANZOAS - EVANZO e-commerce GmbH, DE AS42730 EVANZOAS - EVANZO e-commerce GmbH, DE178.254.5.17 2a00:6800:200:2::17
ns3.greatnet.de178.254.63.17 2a02:2800:250::17AS8893 ARTFILES-AS - Artfiles New Media GmbH, DE AS8893 ARTFILES-AS - Artfiles New Media GmbH, DE178.254.63.17 2a02:2800:250::17

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.greatnet.de, ns2.greatnet.de, ns3.greatnet.de.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.greatnet.de, ns2.greatnet.de, ns3.greatnet.de.
  • ✓ 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 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS42730 (EVANZOAS - EVANZO e-commerce GmbH, DE): 4 addresses; AS8893 (ARTFILES-AS - Artfiles New Media 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

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.greatnet.de 87.238.196.17NOERROR, 6 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1.greatnet.de 2a00:6800:200:1::17NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns2.greatnet.de 178.254.5.17NOERROR, 13 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns2.greatnet.de 2a00:6800:200:2::17NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.greatnet.de 178.254.63.17NOERROR, 12 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.greatnet.de 2a02:2800:250::17NOERROR, 12 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 6 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: ns1.greatnet.de: "Served by PowerDNS - https://www.powerdns.com/"; ns2.greatnet.de: "Served by PowerDNS - https://www.powerdns.com/"; ns3.greatnet.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

warn

serial 2025112702 · primary ns1.greatnet.de

Found

Primary (MNAME)
ns1.greatnet.de
Contact (RNAME)
hostmaster.greatnet.de
Serial
2025112702
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
ns1.greatnet.de (87.238.196.17)2025112702
ns1.greatnet.de (2a00:6800:200:1::17)2025112702
ns2.greatnet.de (178.254.5.17)2025112702
ns2.greatnet.de (2a00:6800:200:2::17)2025112702
ns3.greatnet.de (178.254.63.17)2025112702
ns3.greatnet.de (2a02:2800:250::17)2025112702

Checks

  • ✓ Serial 2025112702 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 4h, retry 1h, expire 7d, negative TTL 3m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.greatnet.de is one of the listed nameservers.
  • ✓ Contact hostmaster@greatnet.de #25
    The SOA RNAME hostmaster.greatnet.de means hostmaster@greatnet.de.
  • ✓ Date-based serial #26
    The serial 2025112702 follows the YYYYMMDDnn convention (2025-11-27).

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

warn

9 records at the apex

Found

Read from
87.238.196.17:53
TypeValueTTL
SOAns1.greatnet.de. hostmaster.greatnet.de. 2025112702 14400 3600 604800 180180
NSns1.greatnet.de.180
NSns2.greatnet.de.180
NSns3.greatnet.de.180
A178.254.48.17180
AAAA2a00:6800:301:0:3011::1180
MX15 mail1.greatnet.de.180
MX5 mail.greatnet.de.180
TXT"v=spf1 a mx include:_spf.greatnet.de ip4:178.254.48.17 ip4:178.254.48.25 ip4:178.254.48.12 ip4:178.254.16.131 -all"180

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (3m), AAAA (3m), MX (3m), NS (3m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 3m; resolvers may use either.
    #32
  • ✓ 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