etl.de

Checked 21 October 2026, 22:19 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 4 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.ncc.eurodata.de, ns2.ncc.eurodata.de, ns3.ext.eurodata.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.ncc.eurodata.de, ns2.ncc.eurodata.de, ns3.ext.eurodata.de
NS in the zone
ns1.ncc.eurodata.de, ns2.ncc.eurodata.de, ns3.ext.eurodata.de
NameserverAddressesNetwork (AS)Glue
ns1.ncc.eurodata.de212.89.128.101 2a02:a8:1:f001:ed:deed:0:1AS9188 INFOSERVE-AS - InfoServe GmbH, DE AS9188 INFOSERVE-AS - InfoServe GmbH, DE212.89.128.101 2a02:a8:1:f001:ed:deed:0:1
ns2.ncc.eurodata.de212.89.134.34 2a02:a8:1:f001:ed:deed:0:2AS9188 INFOSERVE-AS - InfoServe GmbH, DE AS9188 INFOSERVE-AS - InfoServe GmbH, DE212.89.134.34 2a02:a8:1:f001:ed:deed:0:2
ns3.ext.eurodata.de193.179.208.100 2001:af0:8000:7160::10AS13036 TMOBILE-CZ - T-Mobile Czech Republic a.s., CZ AS13036 TMOBILE-CZ - T-Mobile Czech Republic a.s., CZ193.179.208.100 2001:af0:8000:7160::10

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.ncc.eurodata.de, ns2.ncc.eurodata.de, ns3.ext.eurodata.de.
  • ✓ 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 3 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS13036 (TMOBILE-CZ - T-Mobile Czech Republic a.s., CZ): 2 addresses; AS9188 (INFOSERVE-AS - InfoServe GmbH, DE): 4 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

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.ncc.eurodata.de 212.89.128.101NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns1.ncc.eurodata.de 2a02:a8:1:f001:ed:deed:0:1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns2.ncc.eurodata.de 212.89.134.34NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns2.ncc.eurodata.de 2a02:a8:1:f001:ed:deed:0:2NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns3.ext.eurodata.de 193.179.208.100NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns3.ext.eurodata.de 2001:af0:8000:7160::10NOERROR, 5 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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 2026091801 · primary ns1.ncc.eurodata.de

Found

Primary (MNAME)
ns1.ncc.eurodata.de
Contact (RNAME)
dns-master.eurodata.de
Serial
2026091801
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
7200 s

Serial per nameserver

NameserverSerial
ns1.ncc.eurodata.de (212.89.128.101)2026091801
ns1.ncc.eurodata.de (2a02:a8:1:f001:ed:deed:0:1)2026091801
ns2.ncc.eurodata.de (212.89.134.34)2026091801
ns2.ncc.eurodata.de (2a02:a8:1:f001:ed:deed:0:2)2026091801
ns3.ext.eurodata.de (193.179.208.100)2026091801
ns3.ext.eurodata.de (2001:af0:8000:7160::10)2026091801

Checks

  • ✓ Serial 2026091801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 2h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ncc.eurodata.de is one of the listed nameservers.
  • ✓ Contact dns-master@eurodata.de #25
    The SOA RNAME dns-master.eurodata.de means dns-master@eurodata.de.
  • ✓ Date-based serial #26
    The serial 2026091801 follows the YYYYMMDDnn convention (2026-09-18).

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

15 records at the apex

Found

Read from
212.89.128.101:53
TypeValueTTL
SOAns1.ncc.eurodata.de. dns-master.eurodata.de. 2026091801 10800 3600 604800 7200600
NSns2.ncc.eurodata.de.600
NSns1.ncc.eurodata.de.600
NSns3.ext.eurodata.de.600
A31.31.209.201600
MX10 mx01.eurodata.de.600
MX10 mx02.eurodata.de.600
TXT"google-site-verification=TPPj8ckZBdztKJM1cHL5sow6U8OkSqPObeR1xYXZGyI"600
TXT"v=spf1 include:25292565.spf08.hubspotemail.net include:_spf.etl.de include:_spf.eurodata.de include:spf.crsend.com include:maildomain._spf.datev.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.zimpel.de ~all"600
TXT"MS=ms42024605"600
TXT"pardot883603=27ea2ec3450db4d0970572867fc8e6ffd4a641e509df719e1b203065c5aea6bc"600
TXT"asv=0710386bc26fd3ca0afd12878e6d5721"600
TXT"logmein-verification-code=df164b30-1597-4506-8af2-a3fe0fbb74a8"600
TXT"00DWz000003Oi7p=1TBSc0000001C8n"600
TXT"swisssign-check=0N4y01pvHxWq88YclqGOedsaZtWqvY19ybnNoqnAnh"600

Checks

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