keyhelp.de

Checked 21 October 2026, 23:02 UTC · via 8.8.8.8
!Passed with warnings
19 passed 2 warnings 0 failed 8 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

ns.keyhelp.keymachine.de, ns2.keyhelp.keymachine.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.keyhelp.keymachine.de, ns2.keyhelp.keymachine.de
NS in the zone
ns.keyhelp.keymachine.de, ns2.keyhelp.keymachine.de
NameserverAddressesNetwork (AS)Glue
ns.keyhelp.keymachine.de62.141.56.232 2001:1b60:2:11:913:101:be57:cafeAS31103 KEYWEB-AS - Keyweb AG, DE AS31103 KEYWEB-AS - Keyweb AG, DE-
ns2.keyhelp.keymachine.de62.141.57.237AS31103 KEYWEB-AS - Keyweb AG, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.keyhelp.keymachine.de, ns2.keyhelp.keymachine.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 1 IPv6 /48.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS31103 (KEYWEB-AS - Keyweb AG, DE): 3 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns2.keyhelp.keymachine.de.
    #13

Nameservers

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.keyhelp.keymachine.de 62.141.56.232NOERROR, 10 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.8-Ubuntu
ns.keyhelp.keymachine.de 2001:1b60:2:11:913:101:be57:cafeNOERROR, 12 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.8-Ubuntu
ns2.keyhelp.keymachine.de 62.141.57.237NOERROR, 11 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.8-Ubuntu

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns.keyhelp.keymachine.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu"; ns2.keyhelp.keymachine.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu". 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 2026090900 · primary ns.keyhelp.keymachine.de

Found

Primary (MNAME)
ns.keyhelp.keymachine.de
Contact (RNAME)
am.keyweb.de
Serial
2026090900
Refresh / retry
14400 s / 1800 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns.keyhelp.keymachine.de (62.141.56.232)2026090900
ns.keyhelp.keymachine.de (2001:1b60:2:11:913:101:be57:cafe)2026090900
ns2.keyhelp.keymachine.de (62.141.57.237)2026090900

Checks

  • ✓ Serial 2026090900 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.keyhelp.keymachine.de is one of the listed nameservers.
  • ✓ Contact am@keyweb.de #25
    The SOA RNAME am.keyweb.de means am@keyweb.de.
  • ✓ Date-based serial #26
    The serial 2026090900 follows the YYYYMMDDnn convention (2026-09-09).

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

9 records at the apex

Found

Read from
62.141.56.232:53
TypeValueTTL
SOAns.keyhelp.keymachine.de. am.keyweb.de. 2026090900 14400 1800 604800 360086400
NSns.keyhelp.keymachine.de.86400
NSns2.keyhelp.keymachine.de.86400
A62.141.56.23286400
AAAA2001:1b60:2:11:913:101:be57:cafe86400
MX10 mail.keyweb.de.86400
TXT"google-site-verification=z7e8BNi3egXPE9hkRWSy7fUub33EyUlBp36kwclYWE0"86400
TXT"_globalsign-domain-verification=txHqtf2p_fCPUcUi8yULvxXscU_TFdowMigsCjtfas"86400
TXT"v=spf1 a mx a:mail.keyweb.de -all"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, AAAA 1d, MX 1d, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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