conceptodefinicion.de

Checked 21 October 2026, 22:10 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 5 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

cat.ezoicns.com, dog.ezoicns.com, emu.ezoicns.com, gar.ezoicns.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
cat.ezoicns.com, dog.ezoicns.com, emu.ezoicns.com, gar.ezoicns.com
NS in the zone
cat.ezoicns.com, dog.ezoicns.com, emu.ezoicns.com, gar.ezoicns.com
NameserverAddressesNetwork (AS)Glue
cat.ezoicns.com205.251.198.242AS16509 AMAZON-02 - Amazon.com, Inc., US-
dog.ezoicns.com205.251.194.239AS16509 AMAZON-02 - Amazon.com, Inc., US-
emu.ezoicns.com205.251.192.189AS16509 AMAZON-02 - Amazon.com, Inc., US-
gar.ezoicns.com205.251.197.145AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to cat.ezoicns.com, dog.ezoicns.com, emu.ezoicns.com, gar.ezoicns.com.
  • ✓ 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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 4 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 .com
    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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
cat.ezoicns.com 205.251.198.242NOERROR, 9 ms, authoritativenoyes / yesrefused-
dog.ezoicns.com 205.251.194.239NOERROR, 3 ms, authoritativenoyes / yesrefused-
emu.ezoicns.com 205.251.192.189NOERROR, 9 ms, authoritativenoyes / yesrefused-
gar.ezoicns.com 205.251.197.145NOERROR, 3 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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 cat.ezoicns.com

Found

Primary (MNAME)
cat.ezoicns.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
cat.ezoicns.com (205.251.198.242)1
dog.ezoicns.com (205.251.194.239)1
emu.ezoicns.com (205.251.192.189)1
gar.ezoicns.com (205.251.197.145)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 cat.ezoicns.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

info

8 records at the apex

Found

Read from
205.251.198.242:53
TypeValueTTL
SOAcat.ezoicns.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NScat.ezoicns.com.172800
NSdog.ezoicns.com.172800
NSemu.ezoicns.com.172800
NSgar.ezoicns.com.172800
A203.161.63.46300
TXT"ezoic-domain-verification=OHIn8hnKtwiD3eX3v7NnYGufC28Ede"300
TXT"google-site-verification=ImKg58m_1afcSI947mpzLI0EunJL1JvuzH7ngkFzG5E"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, NS 2d. The NS TTL at the parent is 1d and in the zone 2d; 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