anoxinon.de

Checked 21 October 2026, 21:30 UTC · via 8.8.8.8
iAll checks passed
30 passed 0 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

pass

angus.ns.servercow.de, dexter.ns.servercow.net, galloway.ns.servercow.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
angus.ns.servercow.de, dexter.ns.servercow.net, galloway.ns.servercow.com
NS in the zone
angus.ns.servercow.de, dexter.ns.servercow.net, galloway.ns.servercow.com
NameserverAddressesNetwork (AS)Glue
angus.ns.servercow.de5.1.76.153 2a00:f820:417:153::AS34549 MEER-AS - meerfarbig GmbH & Co. KG, DE AS34549 MEER-AS - meerfarbig GmbH & Co. KG, DE5.1.76.153 2a00:f820:417:153::
dexter.ns.servercow.net45.85.48.12 2a0e:b680:c:253::AS208016 tinc-AS - The Infrastructure Company GmbH, DE AS208016 tinc-AS - The Infrastructure Company GmbH, DE-
galloway.ns.servercow.com94.130.42.192 2a01:4f8:fff2:20:353::AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to angus.ns.servercow.de, dexter.ns.servercow.net, galloway.ns.servercow.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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS208016 (tinc-AS - The Infrastructure Company GmbH, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses; AS34549 (MEER-AS - meerfarbig GmbH & Co. KG, DE): 2 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .com, .de, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
angus.ns.servercow.de 5.1.76.153NOERROR, 10 ms, authoritativenoyes / yesrefused-
angus.ns.servercow.de 2a00:f820:417:153::NOERROR, 6 ms, authoritativenoyes / yesrefused-
dexter.ns.servercow.net 45.85.48.12NOERROR, 8 ms, authoritativenoyes / yesrefused-
dexter.ns.servercow.net 2a0e:b680:c:253::NOERROR, 8 ms, authoritativenoyes / yesrefused-
galloway.ns.servercow.com 94.130.42.192NOERROR, 4 ms, authoritativenoyes / yesrefused-
galloway.ns.servercow.com 2a01:4f8:fff2:20:353::NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 6 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 2026101501 · primary angus.ns.servercow.de

Found

Primary (MNAME)
angus.ns.servercow.de
Contact (RNAME)
hostmaster.servercow.de
Serial
2026101501
Refresh / retry
14400 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
angus.ns.servercow.de (5.1.76.153)2026101501
angus.ns.servercow.de (2a00:f820:417:153::)2026101501
dexter.ns.servercow.net (45.85.48.12)2026101501
dexter.ns.servercow.net (2a0e:b680:c:253::)2026101501
galloway.ns.servercow.com (94.130.42.192)2026101501
galloway.ns.servercow.com (2a01:4f8:fff2:20:353::)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver angus.ns.servercow.de is one of the listed nameservers.
  • ✓ Contact hostmaster@servercow.de #25
    The SOA RNAME hostmaster.servercow.de means hostmaster@servercow.de.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
47002ECDSAP256SHA256 (13)SHA256 DD3FE1C208357313…yes

DNSKEY in the zone

Key tagRoleAlgorithm
47002KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 47002 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

pass

11 records at the apex

Found

Read from
5.1.76.153:53
TypeValueTTL
SOAangus.ns.servercow.de. hostmaster.servercow.de. 2026101501 14400 3600 1209600 36003600
NSgalloway.ns.servercow.com.3600
NSdexter.ns.servercow.net.3600
NSangus.ns.servercow.de.3600
A142.132.217.122600
AAAA2a01:4f8:262:45c0:4ad:feff:fe17:994600
MX10 mail.anoxinon.de.7200
TXT"v=spf1 mx ~all"7200
CAA128 iodef "mailto:postfach+caa@anoxinon.de"600
CAA128 issuewild "letsencrypt.org"600
CAA128 issue "letsencrypt.org"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, AAAA 10m, MX 2h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; 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: letsencrypt.org.