ddnss.de

Checked 21 October 2026, 22:12 UTC · via 8.8.8.8
!Passed with warnings
18 passed 5 warnings 0 failed 6 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
Public suffix
.ddnss.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 .ddnss.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

warn

ns1.ddnss.de, ns3.ddnss.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.ddnss.de, ns3.ddnss.de
NS in the zone
ns1.ddnss.de, ns2.ddnss.de, ns3.ddnss.de
NameserverAddressesNetwork (AS)Glue
ns1.ddnss.de85.114.136.161 2001:4ba0:ffe6:1f::1AS24961 MYLOC-AS - WIIT AG, DE AS24961 MYLOC-AS - WIIT AG, DE85.114.136.161 2001:4ba0:ffe6:1f::1
ns2.ddnss.de (zone only)188.65.149.12 2a00:1aa0:1000:12::1AS209480 smartweb-AS - Smart Weblications GmbH, DE AS209480 smartweb-AS - Smart Weblications GmbH, DE-
ns3.ddnss.de188.65.149.12 2a00:1aa0:1000:12::1AS209480 smartweb-AS - Smart Weblications GmbH, DE AS209480 smartweb-AS - Smart Weblications GmbH, DE78.31.65.41 2001:4ba0:cafe:15a2::1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.ddnss.de, ns3.ddnss.de.
    #6
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: ns2.ddnss.de. ns1.ddnss.de, ns2.ddnss.de, ns3.ddnss.de report NS ns1.ddnss.de ns2.ddnss.de ns3.ddnss.de.
    #7
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns3.ddnss.de (glue 78.31.65.41, 2001:4ba0:cafe:15a2::1, zone 188.65.149.12, 2a00:1aa0:1000:12::1). Update the glue at your registrar.
    #8
  • ✓ 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: AS209480 (smartweb-AS - Smart Weblications GmbH, DE): 4 addresses; AS24961 (MYLOC-AS - WIIT AG, 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.ddnss.de 85.114.136.161NOERROR, 7 ms, authoritativenoyes / yesrefusedMy version is so secret that I even dont know what Im running on
ns1.ddnss.de 2001:4ba0:ffe6:1f::1NOERROR, 7 ms, authoritativenoyes / yesrefusedMy version is so secret that I even dont know what Im running on
ns2.ddnss.de 188.65.149.12NOERROR, 10 ms, authoritativenoyes / yesrefusedMy version is so secret that I even dont know what Im running on
ns2.ddnss.de 2a00:1aa0:1000:12::1NOERROR, 14 ms, authoritativenoyes / yesrefusedMy version is so secret that I even dont know what Im running on
ns3.ddnss.de 188.65.149.12NOERROR, 9 ms, authoritativenoyes / yesrefusedMy version is so secret that I even dont know what Im running on
ns3.ddnss.de 2a00:1aa0:1000:12::1NOERROR, 16 ms, authoritativenoyes / yesrefusedMy version is so secret that I even dont know what Im running on

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.ddnss.de: "My version is so secret that I even dont know what Im running on"; ns2.ddnss.de: "My version is so secret that I even dont know what Im running on"; ns3.ddnss.de: "My version is so secret that I even dont know what Im running on".
    #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 2064288632 · primary ns1.ddnss.de

Found

Primary (MNAME)
ns1.ddnss.de
Contact (RNAME)
postmaster.megacomputing.de
Serial
2064288632
Refresh / retry
3600 s / 7200 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ns1.ddnss.de (85.114.136.161)2064288632
ns1.ddnss.de (2001:4ba0:ffe6:1f::1)2064288632
ns2.ddnss.de (188.65.149.12)2064288632
ns2.ddnss.de (2a00:1aa0:1000:12::1)2064288632
ns3.ddnss.de (188.65.149.12)2064288632
ns3.ddnss.de (2a00:1aa0:1000:12::1)2064288632

Checks

  • ✓ Serial 2064288632 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 2h should be shorter than refresh 1h. Current values: refresh 1h, retry 2h, expire 7d, negative TTL 30m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ddnss.de is one of the listed nameservers.
  • ✓ Contact postmaster@megacomputing.de #25
    The SOA RNAME postmaster.megacomputing.de means postmaster@megacomputing.de.
  • ✓ Timestamp serial #26
    The serial 2064288632 is a Unix timestamp (2035-06-01 05:30 UTC).

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
85.114.136.161:53
TypeValueTTL
SOAns1.ddnss.de. postmaster.megacomputing.de. 2064288632 3600 7200 604800 180060
NSns2.ddnss.de.10
NSns3.ddnss.de.10
NSns1.ddnss.de.10
A85.114.136.16160
AAAA2001:4ba0:ffe6:1f::160
MX10 mail.mc-p.de.60
TXT"v=spf1 ip4:85.114.136.161 -all"60
TXT"v=DMARC1; p=none"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (1m), MX (1m), NS (10s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 10s; 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