ttpforum.de

Checked 22 October 2026, 00:41 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

ns10.alfahosting.info, ns8.alfahosting.info, ns9.alfahosting.info

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns10.alfahosting.info, ns8.alfahosting.info, ns9.alfahosting.info
NS in the zone
ns10.alfahosting.info, ns8.alfahosting.info, ns9.alfahosting.info
NameserverAddressesNetwork (AS)Glue
ns10.alfahosting.info109.237.143.8AS45012 CLOUDPIT - dogado GmbH, DE-
ns8.alfahosting.info109.237.142.8AS45012 CLOUDPIT - dogado GmbH, DE-
ns9.alfahosting.info148.251.254.105AS24940 HETZNER-AS - Hetzner Online GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns10.alfahosting.info, ns8.alfahosting.info, ns9.alfahosting.info.
  • ✓ 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 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 1 address; AS45012 (CLOUDPIT - dogado GmbH, DE): 2 addresses.
  • i
    All nameserver names under .info
    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

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns10.alfahosting.info 109.237.143.8NOERROR, 16 ms, authoritativenoyes / yesrefused-
ns8.alfahosting.info 109.237.142.8NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns9.alfahosting.info 148.251.254.105NOERROR, 3 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 3 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 2026012101 · primary ns10.alfahosting.info

Found

Primary (MNAME)
ns10.alfahosting.info
Contact (RNAME)
hostmaster.alfahosting.de
Serial
2026012101
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns10.alfahosting.info (109.237.143.8)2026012101
ns8.alfahosting.info (109.237.142.8)2026012101
ns9.alfahosting.info (148.251.254.105)2026012101

Checks

  • ✓ Serial 2026012101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns10.alfahosting.info is one of the listed nameservers.
  • ✓ Contact hostmaster@alfahosting.de #25
    The SOA RNAME hostmaster.alfahosting.de means hostmaster@alfahosting.de.
  • ✓ Date-based serial #26
    The serial 2026012101 follows the YYYYMMDDnn convention (2026-01-21).

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

6 records at the apex

Found

Read from
109.237.143.8:53
TypeValueTTL
SOAns10.alfahosting.info. hostmaster.alfahosting.de. 2026012101 28800 7200 604800 8640086400
NSns10.alfahosting.info.86400
NSns9.alfahosting.info.86400
NSns8.alfahosting.info.86400
A109.237.137.23386400
MX10 mail.ttpforum.de.86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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