tag-des-offenen-denkmals.de

Checked 22 October 2026, 00:32 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

ns-1376.awsdns-44.org, ns-1729.awsdns-24.co.uk, ns-366.awsdns-45.com, ns-542.awsdns-03.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1376.awsdns-44.org, ns-1729.awsdns-24.co.uk, ns-366.awsdns-45.com, ns-542.awsdns-03.net
NS in the zone
ns-1376.awsdns-44.org, ns-1729.awsdns-24.co.uk, ns-366.awsdns-45.com, ns-542.awsdns-03.net
NameserverAddressesNetwork (AS)Glue
ns-1376.awsdns-44.org205.251.197.96 2600:9000:5305:6000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1729.awsdns-24.co.uk205.251.198.193 2600:9000:5306:c100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-366.awsdns-45.com205.251.193.110 2600:9000:5301:6e00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-542.awsdns-03.net205.251.194.30 2600:9000:5302:1e00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1376.awsdns-44.org, ns-1729.awsdns-24.co.uk, ns-366.awsdns-45.com, ns-542.awsdns-03.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-1376.awsdns-44.org 205.251.197.96NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns-1376.awsdns-44.org 2600:9000:5305:6000::1NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns-1729.awsdns-24.co.uk 205.251.198.193NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1729.awsdns-24.co.uk 2600:9000:5306:c100::1NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-366.awsdns-45.com 205.251.193.110NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-366.awsdns-45.com 2600:9000:5301:6e00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-542.awsdns-03.net 205.251.194.30NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns-542.awsdns-03.net 2600:9000:5302:1e00::1NOERROR, 6 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 2 · primary ns-542.awsdns-03.net

Found

Primary (MNAME)
ns-542.awsdns-03.net
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
2
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns-1376.awsdns-44.org (205.251.197.96)2
ns-1376.awsdns-44.org (2600:9000:5305:6000::1)2
ns-1729.awsdns-24.co.uk (205.251.198.193)2
ns-1729.awsdns-24.co.uk (2600:9000:5306:c100::1)2
ns-366.awsdns-45.com (205.251.193.110)2
ns-366.awsdns-45.com (2600:9000:5301:6e00::1)2
ns-542.awsdns-03.net (205.251.194.30)2
ns-542.awsdns-03.net (2600:9000:5302:1e00::1)2

Checks

  • ✓ Serial 2 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-542.awsdns-03.net 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 2 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

info

13 records at the apex

Found

Read from
205.251.197.96:53
TypeValueTTL
SOAns-542.awsdns-03.net. awsdns-hostmaster.amazon.com. 2 7200 900 1209600 3003600
NSns-1376.awsdns-44.org.300
NSns-1729.awsdns-24.co.uk.300
NSns-366.awsdns-45.com.300
NSns-542.awsdns-03.net.300
A76.76.21.21300
MX5 dsd.in.tmes.trendmicro.eu.300
TXT"MS=ms56099727"3600
TXT"cisco-ci-domain-verification=d343853cf63e65b18f9725b39c803f249a0bbe4de4f5b6874983553f0e73def"3600
TXT"google-site-verification=1mYDmYr73kQKlE5LiOLYKweW305MH7BHy_Gno26fNpk"3600
TXT"google-site-verification=RWqIaNrc-yZfY0HHX8NZFnTYqbYUn9cxNgcIyfeOflI"3600
TXT"tmes=209025dfc6aeaae07438c0e1e5aa23a4"3600
TXT"v=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com include:spf.cloud.ci-solution.com ~all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1d and in the zone 5m; 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