dkb.de

Checked 21 October 2026, 22:14 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 3 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-1080.awsdns-07.org, ns-1586.awsdns-06.co.uk, ns-214.awsdns-26.com, ns-847.awsdns-41.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1080.awsdns-07.org, ns-1586.awsdns-06.co.uk, ns-214.awsdns-26.com, ns-847.awsdns-41.net
NS in the zone
ns-1080.awsdns-07.org, ns-1586.awsdns-06.co.uk, ns-214.awsdns-26.com, ns-847.awsdns-41.net
NameserverAddressesNetwork (AS)Glue
ns-1080.awsdns-07.org205.251.196.56 2600:9000:5304:3800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1586.awsdns-06.co.uk205.251.198.50 2600:9000:5306:3200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-214.awsdns-26.com205.251.192.214 2600:9000:5300:d600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-847.awsdns-41.net205.251.195.79 2600:9000:5303:4f00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1080.awsdns-07.org, ns-1586.awsdns-06.co.uk, ns-214.awsdns-26.com, ns-847.awsdns-41.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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1080.awsdns-07.org 205.251.196.56NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1080.awsdns-07.org 2600:9000:5304:3800::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1586.awsdns-06.co.uk 205.251.198.50NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1586.awsdns-06.co.uk 2600:9000:5306:3200::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-214.awsdns-26.com 205.251.192.214NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-214.awsdns-26.com 2600:9000:5300:d600::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-847.awsdns-41.net 205.251.195.79NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-847.awsdns-41.net 2600:9000:5303:4f00::1NOERROR, 4 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 1 · primary ns-214.awsdns-26.com

Found

Primary (MNAME)
ns-214.awsdns-26.com
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1080.awsdns-07.org (205.251.196.56)1
ns-1080.awsdns-07.org (2600:9000:5304:3800::1)1
ns-1586.awsdns-06.co.uk (205.251.198.50)1
ns-1586.awsdns-06.co.uk (2600:9000:5306:3200::1)1
ns-214.awsdns-26.com (205.251.192.214)1
ns-214.awsdns-26.com (2600:9000:5300:d600::1)1
ns-847.awsdns-41.net (205.251.195.79)1
ns-847.awsdns-41.net (2600:9000:5303:4f00::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-214.awsdns-26.com is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

warn

38 records at the apex

Found

Read from
205.251.196.56:53
TypeValueTTL
SOAns-214.awsdns-26.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1080.awsdns-07.org.86400
NSns-1586.awsdns-06.co.uk.86400
NSns-214.awsdns-26.com.86400
NSns-847.awsdns-41.net.86400
A54.192.35.6760
A54.192.35.10460
A54.192.35.10960
A54.192.35.12660
AAAA2600:9000:213f:1a00:a:c15c:d2c0:93a160
AAAA2600:9000:2130:d000:a:c15c:d2c0:93a160
AAAA2600:9000:213f:4000:a:c15c:d2c0:93a160
AAAA2600:9000:2130:8c00:a:c15c:d2c0:93a160
AAAA2600:9000:2130:c400:a:c15c:d2c0:93a160
AAAA2600:9000:2130:dc00:a:c15c:d2c0:93a160
AAAA2600:9000:2130:4800:a:c15c:d2c0:93a160
AAAA2600:9000:2130:7000:a:c15c:d2c0:93a160
MX10 dkb-de.mail.protection.outlook.com.300
TXT"1password-site-verification=23CXVE2DTNAQNEG4X76SXEMFEM"3600
TXT"2kv439knsbhsb2z5bzz3b4kmqtv132gz"3600
TXT"MS=E691B3DE07D9480B44CA221F398B9082A02D2668"3600
TXT"MS=ms97803976"3600
TXT"ZSY71Vng6nqqIdpSUG1nSr7HMXg9EkSertA8xMdiMmym7nnCEq3ETGI2jT4mseK00sP/SyoJe/mjFimMACER8w=="3600
TXT"atlassian-domain-verification=BabJG8hPn5CCRSeObWbS/uuQSP8bIc9nQ/m8UEPYqSaaP48rmJTuMJbuaxiLJTsM"3600
TXT"facebook-domain-verification=pkfpdapj2rck3mwywloebv4prlwpc2"3600
TXT"flexera-domain-verification-crrnlikpmzbqhnha"3600
TXT"google-site-verification=SPmSNqIqs4ZYxgFdm0q7qYJGK1GZ32HvP2wRyEgT6RU"3600
TXT"google-site-verification=agzUFJ0FbAOuSvPH064zBIHcsVLzbCwOqW5PgOFNjco"3600
TXT"jamf-site-verification=uFM3MsO3VAW87DK9zbyDmg"3600
TXT"miro-verification=7cc72b3b70f2fd28fa8a2d0d01932b0b8621b4d3"3600
TXT"openai-domain-verification=dv-GXvXiruuHR92FN7vf5WlGWgl"3600
TXT"v=spf1 include:_spf.zimpel.de include:spf.mail.s-web.de include:_spf.dkb.de include:spf.protection.outlook.com include:_spf.salesforce.com include:_spf.axs-net.de include:mailout.p4.net include:spf.servicemail24.de -all"3600
TXT"wiz-domain-verification=c20e0063f8b962e3e8710d4ef6b7dc26a83c5e66a3b89dd7bcf2c9bbcecf1542"3600
TXT"xrQ6Jf92Whn8qEm7TxlWH6A4Ym4bJoz6"3600
CAA0 iodef "mailto:hostmaster@dkb.de"3600
CAA0 issue "digicert.com; account=99da51f5f3a6bf1f1cd539b9603430245d3eec1b746a13482a7b9a928be4431f"3600
CAA0 issue "sectigo.com"3600
CAA0 issuewild ";"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (1m). Low TTLs are useful just before a planned change.
    #32
  • ✓ 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: digicert.com, sectigo.com, none (issuance forbidden).