dzbank.de

Checked 21 October 2026, 22:15 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 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

warn

ns1.dzbank.de, ns2.dzbank.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.dzbank.de, ns2.dzbank.de
NS in the zone
ns1.dzbank.de, ns2.dzbank.de
NameserverAddressesNetwork (AS)Glue
ns1.dzbank.de185.111.193.52AS42605 FRA-VRNETZE - Ratiodata SE, DE185.111.193.52
ns2.dzbank.de185.111.192.164AS42605 FRA-VRNETZE - Ratiodata SE, DE185.111.192.164

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.dzbank.de, ns2.dzbank.de.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.dzbank.de, ns2.dzbank.de.
  • ✓ 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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS42605 (FRA-VRNETZE - Ratiodata SE, DE): 2 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.dzbank.de 185.111.193.52NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns2.dzbank.de 185.111.192.164NOERROR, 5 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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

info

serial 2026100702 · primary ns1.ratiodata.de

Found

Primary (MNAME)
ns1.ratiodata.de
Contact (RNAME)
nms.ratiodata.de
Serial
2026100702
Refresh / retry
21600 s / 3600 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns1.dzbank.de (185.111.193.52)2026100702
ns2.dzbank.de (185.111.192.164)2026100702

Checks

  • ✓ Serial 2026100702 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 7d, negative TTL 10m.
  • i
    Hidden master
    The primary nameserver ns1.ratiodata.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 nms@ratiodata.de #25
    The SOA RNAME nms.ratiodata.de means nms@ratiodata.de.
  • ✓ Date-based serial #26
    The serial 2026100702 follows the YYYYMMDDnn convention (2026-10-07).

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

pass

33 records at the apex

Found

Read from
185.111.193.52:53
TypeValueTTL
SOAns1.ratiodata.de. nms.ratiodata.de. 2026100702 21600 3600 604800 6001800
NSns1.dzbank.de.1800
NSns2.dzbank.de.1800
A34.120.10.2003600
MX10 mg1.dzbank.de.300
MX10 mg2.dzbank.de.300
MX10 mg3.dzbank.de.300
MX10 mg4.dzbank.de.300
TXT"amazonses:/hQbhqfeLlP/T92pGkcmMsGhkr2Kf4IzubUSP0gg2cU="3600
TXT"9LlfWCyZdXzm2m1UYtCJKOBAPNpZ+cQ7x85gWJKAYmUvWZICUMgHBt7OxgxQkYiycgSTI8/Mpr6gBNG8AF1TNA=="3600
TXT"D-TRUST=3CZIOZ6GN6OVY29KET7CS9G"3600
TXT"google-site-verification=fcFcZ6cCCe0jSbasRmNiSyv_03da28VOo0eZ9lwc-W4"3600
TXT"_m1y17nx9yn8144nnt2ib12xjj8m3z89"3600
TXT"Sendinblue-code:6ef1bdca0140128a0b0cdffd769c529f"3600
TXT"swisssign-check=xhBXiHK7Rq6iXpZX2sEE8lQ4oJGltbwVk4JMObskcd"3600
TXT"mYdDvRqXwKXqR8yqlqPcxG5i5S0h0oujdYGtpM8u2dw47lQWMgm2/6KUVpmi8AJRW4hT7CClzIfIi4DsqvwVXQ=="3600
TXT"v=spf1 mx include:_spf.retarus.com include:spf.sendinblue.com include:spf1.dzbank.de include:spf2.dzbank.de include:spf3.dzbank.de include:spf4.dzbank.de include:spf5.atruvia.dzbank.de include:_spf.general.transactional-mail-a.com include:spf.protection.o" "utlook.com -all"3600
TXT"successfactors-site-verification=ZTk0ZjVkZWRhNWM4ZmJiZDI3Y2RiODg0NmMyMWViZWExYjNkZGE5ZjUwNTM1ODU4ZGQzZDEwYjk4M2Q4OTRiMw=="3600
TXT"successfactors-site-verification=NjllNjFiMzhjNTc2NTg3OTVmZTI5NzcwYWE4NDNiMDcyMzg2ODcwZWEwMjliZDNlOTFlOTQyMTU5NzNjNDYzMg=="3600
TXT"_telesec-domain-validation=4D62915E945CB6202B93BC5B63A5D79AFAD535321AACCAC6DF82B4CE3E19F6E1"3600
TXT"QuoVadis=183e936b-3411-47d0-b1f4-929056fc7b43"3600
TXT"MS=ms49264968"3600
TXT"teamviewer-sso-verification=1dc1d101dcac44c1bc60f1edf7c0fc44"3600
TXT"canva-site-verification=Zq2qa9sVslq7Ze-LBlw2iQ"3600
CAA0 issue "pki.goog"3600
CAA0 issue "quovadisglobal.com"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "mailto:pki-info@dzbank.de"3600
CAA0 issue "digicert.com"3600
CAA0 issue "d-trust.net"3600
CAA0 issue "telesec.de"3600
CAA0 issuemail "digicert.com"3600
CAA0 issuewild ";"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 5m, NS 30m. The NS TTL at the parent is 1d and in the zone 30m; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: pki.goog, quovadisglobal.com, letsencrypt.org, mailto:pki-info@dzbank.de, digicert.com, d-trust.net, telesec.de, none (issuance forbidden).