afd.de

Checked 21 October 2026, 21:28 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 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

ns01.alt-nameserver.at, ns01.alt-nameserver.cc, ns01.alt-nameserver.com, ns01.alt-nameserver.de, ns01.alt-nameserver.systems

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns01.alt-nameserver.at, ns01.alt-nameserver.cc, ns01.alt-nameserver.com, ns01.alt-nameserver.de, ns01.alt-nameserver.systems
NS in the zone
ns01.alt-nameserver.at, ns01.alt-nameserver.cc, ns01.alt-nameserver.com, ns01.alt-nameserver.de, ns01.alt-nameserver.systems
NameserverAddressesNetwork (AS)Glue
ns01.alt-nameserver.at37.252.225.38 2a00:11c0:2:998::32AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT-
ns01.alt-nameserver.cc45.84.253.114 2a00:11c0:66::212AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT-
ns01.alt-nameserver.com213.227.168.118 2a00:11c0:82:359::1006AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT-
ns01.alt-nameserver.de217.146.22.150 2a00:11c0:e:ffff:1::6AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT217.146.22.150 2a00:11c0:e:ffff:1::6
ns01.alt-nameserver.systems188.172.219.106 2a00:11c0:63:350::1006AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT-

Checks

  • ✓ 5 nameservers #6
    Delegated to ns01.alt-nameserver.at, ns01.alt-nameserver.cc, ns01.alt-nameserver.com, ns01.alt-nameserver.de, ns01.alt-nameserver.systems.
  • ✓ 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 5 IPv4 /24s and 5 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS42473 (AS-ANEXIA - Anexia Cloud Solutions GmbH, AT): 10 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 5 TLDs #12
    Nameserver names use the TLDs .at, .cc, .com, .de, .systems.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns01.alt-nameserver.at 37.252.225.38NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.at 2a00:11c0:2:998::32NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.cc 45.84.253.114NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.cc 2a00:11c0:66::212NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.com 213.227.168.118NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.com 2a00:11c0:82:359::1006NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.de 217.146.22.150NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.de 2a00:11c0:e:ffff:1::6NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.systems 188.172.219.106NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns01.alt-nameserver.systems 2a00:11c0:63:350::1006NOERROR, 16 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 10 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 58 · primary ns01.alt-nameserver.de

Found

Primary (MNAME)
ns01.alt-nameserver.de
Contact (RNAME)
hostmaster.afd.de
Serial
58
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns01.alt-nameserver.at (37.252.225.38)58
ns01.alt-nameserver.at (2a00:11c0:2:998::32)58
ns01.alt-nameserver.cc (45.84.253.114)58
ns01.alt-nameserver.cc (2a00:11c0:66::212)58
ns01.alt-nameserver.com (213.227.168.118)58
ns01.alt-nameserver.com (2a00:11c0:82:359::1006)58
ns01.alt-nameserver.de (217.146.22.150)58
ns01.alt-nameserver.de (2a00:11c0:e:ffff:1::6)58
ns01.alt-nameserver.systems (188.172.219.106)58
ns01.alt-nameserver.systems (2a00:11c0:63:350::1006)58

Checks

  • ✓ Serial 58 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 ns01.alt-nameserver.de is one of the listed nameservers.
  • ✓ Contact hostmaster@afd.de #25
    The SOA RNAME hostmaster.afd.de means hostmaster@afd.de.
  • ✓ Counter serial #26
    The serial 58 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

18 records at the apex

Found

Read from
37.252.225.38:53
TypeValueTTL
SOAns01.alt-nameserver.de. hostmaster.afd.de. 58 7200 900 1209600 864003600
NSns01.alt-nameserver.de.3600
NSns01.alt-nameserver.cc.3600
NSns01.alt-nameserver.at.3600
NSns01.alt-nameserver.systems.3600
NSns01.alt-nameserver.com.3600
A148.251.78.22160
A57.129.83.6860
A57.129.83.6060
A195.201.193.9960
MX40 mx04.hornetsecurity.com.300
MX30 mx03.hornetsecurity.com.300
MX10 mx01.hornetsecurity.com.300
MX20 mx02.hornetsecurity.com.300
TXT"logmein-verification-code=44641872-80c6-4cae-8814-34f37ecac77d"120
TXT"v=spf1 ip4:91.198.224.0/24 ip4:194.37.255.0/24 ip4:82.165.37.54/32 include:spf.hornetsecurity.com include:spf.primary-domains.afd-hosting.de include:spf.sendinblue.com ~all"120
TXT"brevo-code:65b69cf40e27b6a550c3733373b6db39"120
TXT"apple-domain-verification=ia4nRnfsA3csEQKJ"120

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
    #32
  • ✓ 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