owl-it.de

Checked 21 October 2026, 23:42 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 0 failed 6 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

pns.dtag.de, secondary006.dtag.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
pns.dtag.de, secondary006.dtag.net
NS in the zone
pns.dtag.de, secondary006.dtag.net
NameserverAddressesNetwork (AS)Glue
pns.dtag.de194.25.0.125 2003:40:8000::100AS3320 DTAG - Deutsche Telekom AG, DE AS3320 DTAG - Deutsche Telekom AG, DE194.25.0.125 2003:40:8000::100
secondary006.dtag.net195.244.245.25 2a00:fa8:3:0:100:0:6:1AS5605 NETUSE - NetUSE AG, DE AS5605 NETUSE - NetUSE AG, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: pns.dtag.de, secondary006.dtag.net.
    #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 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS3320 (DTAG - Deutsche Telekom AG, DE): 2 addresses; AS5605 (NETUSE - NetUSE AG, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
pns.dtag.de 194.25.0.125NOERROR, 9 ms, authoritativenoyes / yesrefusedDomainNameServer
pns.dtag.de 2003:40:8000::100NOERROR, 7 ms, authoritativenoyes / yesrefusedDomainNameServer
secondary006.dtag.net 195.244.245.25NOERROR, 12 ms, authoritativenoyes / yesrefusedDomainNameServer
secondary006.dtag.net 2a00:fa8:3:0:100:0:6:1NOERROR, 16 ms, authoritativenoyes / yesrefusedDomainNameServer

Checks

  • ✓ All respond #14
    All 4 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: pns.dtag.de: "DomainNameServer"; secondary006.dtag.net: "DomainNameServer".
    #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

info

serial 2026102002 · primary ns1.krz.de

Found

Primary (MNAME)
ns1.krz.de
Contact (RNAME)
dnsadmin.krz.de
Serial
2026102002
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
pns.dtag.de (194.25.0.125)2026102002
pns.dtag.de (2003:40:8000::100)2026102002
secondary006.dtag.net (195.244.245.25)2026102002
secondary006.dtag.net (2a00:fa8:3:0:100:0:6:1)2026102002

Checks

  • ✓ Serial 2026102002 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • i
    Hidden master
    The primary nameserver ns1.krz.de is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact dnsadmin@krz.de #25
    The SOA RNAME dnsadmin.krz.de means dnsadmin@krz.de.
  • ✓ Date-based serial #26
    The serial 2026102002 follows the YYYYMMDDnn convention (2026-10-20).

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
194.25.0.125:53
TypeValueTTL
SOAns1.krz.de. dnsadmin.krz.de. 2026102002 28800 7200 604800 8640086400
NSpns.dtag.de.86400
NSsecondary006.dtag.net.86400
A62.153.231.803600
MX10 mx.krz.de.86400
TXT"MS=ms70189842"86400
TXT"epDG0o9oIF3wwfyUbSCxHV2qu706+HceTIWwb7FolQ7ZSzMNjR1ExO2L4yWPEiyD+YiOl/FKedjkoNTxyrkAxg=="86400
TXT"_telesec-domain-validation=355810_2025-12-12_KRKCQNNLNyzMatT34YVzFVYFojwU4DjyoKd8vqoTjXWSgaganx"86400
TXT"6HYX/EguSm0ILpsAxY7ZHPFZpOkY+jwKnbRVrvoaJLbstM4W/XG1Xv+qTBmiAPeY6aCg/WXxEA97kq51urTDmA=="86400
TXT"CSh/JvDLhAsfWJUGI0XAtA/jTeKjfkBaNADdDV+ssJ4="86400
TXT"KGa68V8VAz6hD/4neCVv8iWaY8Ov1xlFT0oC7AIvmMAchUn0iqQKg6JcegARl4MZl03LdaMOcr5IbHgjXEHXwA=="86400
TXT"v=spf1 mx include:spf.owl-it.de ip4:80.66.4.19 ip4:80.66.4.12 ip4:80.66.4.13 -all"86400
TXT"_telesec-domain-validation=2024-12-10_ML15hYmf7XCrexxB6Ok0KPV2QCvHiGhyk6N7QOsBRAN8i0fLZB"86400
TXT"apple-domain-verification=vkwpxrdo3JYZeild"86400
TXT"cisco-ci-domain-verification=65bab85725f84c8fbba8aefaad70162f50560fa909f22314c112362e7dc6fba7"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1d, NS 1d.
  • ✓ 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