zdb.de

Checked 22 October 2026, 01:10 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 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

ns41.cloudns.net, ns42.cloudns.net, ns43.cloudns.net, ns44.cloudns.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns41.cloudns.net, ns42.cloudns.net, ns43.cloudns.net, ns44.cloudns.net
NS in the zone
ns41.cloudns.net, ns42.cloudns.net, ns43.cloudns.net, ns44.cloudns.net
NameserverAddressesNetwork (AS)Glue
ns41.cloudns.net109.201.133.196 2a00:1768:1001:9::196AS43350 NFORCE - NForce Entertainment B.V., NL AS43350 NFORCE - NForce Entertainment B.V., NL-
ns42.cloudns.net108.62.121.219 2604:9a00:2100:b000:1::1AS30633 LEASEWEB-USA-WDC - Leaseweb USA, Inc., US AS30633 LEASEWEB-USA-WDC - Leaseweb USA, Inc., US-
ns43.cloudns.net185.10.17.44 2a07:8dc0:19:0:5d:37ff:fea5:bacdAS35661 VIRTUASYS-EU - VIRTUA SYSTEMS SAS, FR AS35661 VIRTUASYS-EU - VIRTUA SYSTEMS SAS, FR-
ns44.cloudns.net185.206.180.140 2a0b:1640:1:1:1:1:762:9aa6AS205787 Publicloud - Public Cloud Ltd., BG AS205787 Publicloud - Public Cloud Ltd., BG-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns41.cloudns.net, ns42.cloudns.net, ns43.cloudns.net, ns44.cloudns.net.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS205787 (Publicloud - Public Cloud Ltd., BG): 2 addresses; AS30633 (LEASEWEB-USA-WDC - Leaseweb USA, Inc., US): 2 addresses; AS35661 (VIRTUASYS-EU - VIRTUA SYSTEMS SAS, FR): 2 addresses; AS43350 (NFORCE - NForce Entertainment B.V., NL): 2 addresses.
  • i
    All nameserver names under .net
    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

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns41.cloudns.net 109.201.133.196NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns41.cloudns.net 2a00:1768:1001:9::196NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns42.cloudns.net 108.62.121.219NOERROR, 103 ms, authoritativenoyes / yesrefused-
ns42.cloudns.net 2604:9a00:2100:b000:1::1NOERROR, 95 ms, authoritativenoyes / yesrefused-
ns43.cloudns.net 185.10.17.44NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns43.cloudns.net 2a07:8dc0:19:0:5d:37ff:fea5:bacdNOERROR, 14 ms, authoritativenoyes / yesrefused-
ns44.cloudns.net 185.206.180.140NOERROR, 52 ms, authoritativenoyes / yesrefused-
ns44.cloudns.net 2a0b:1640:1:1:1:1:762:9aa6NOERROR, 70 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2026101902 · primary ns41.cloudns.net

Found

Primary (MNAME)
ns41.cloudns.net
Contact (RNAME)
support.cloudns.net
Serial
2026101902
Refresh / retry
7200 s / 1800 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns41.cloudns.net (109.201.133.196)2026101902
ns41.cloudns.net (2a00:1768:1001:9::196)2026101902
ns42.cloudns.net (108.62.121.219)2026101902
ns42.cloudns.net (2604:9a00:2100:b000:1::1)2026101902
ns43.cloudns.net (185.10.17.44)2026101902
ns43.cloudns.net (2a07:8dc0:19:0:5d:37ff:fea5:bacd)2026101902
ns44.cloudns.net (185.206.180.140)2026101902
ns44.cloudns.net (2a0b:1640:1:1:1:1:762:9aa6)2026101902

Checks

  • ✓ Serial 2026101902 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 30m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns41.cloudns.net is one of the listed nameservers.
  • ✓ Contact support@cloudns.net #25
    The SOA RNAME support.cloudns.net means support@cloudns.net.
  • ✓ Date-based serial #26
    The serial 2026101902 follows the YYYYMMDDnn convention (2026-10-19).

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

10 records at the apex

Found

Read from
109.201.133.196:53
TypeValueTTL
SOAns41.cloudns.net. support.cloudns.net. 2026101902 7200 1800 1209600 36003600
NSns41.cloudns.net.3600
NSns42.cloudns.net.3600
NSns43.cloudns.net.3600
NSns44.cloudns.net.3600
A194.6.209.137600
MX10 mxtls.expurgate.net.600
TXT"v=spf1 a:mail.zdb.de ip4:212.144.248.165 ip4:194.6.208.50 include:spf.protection.outlook.com ~all"300
TXT"google-site-verification=H_lqJkBhgSoIJ0LJHeIXA932os97HoG95F0ew_UMVHU"300
TXT"anthropic-domain-verification-d28c24=dPfyolUPJ2VmrekUbGlzK0Wg7"300

Checks

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