td00.de

Checked 22 October 2026, 00:32 UTC · via 8.8.8.8
!Passed with warnings
21 passed 4 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

ns0.xtm.es, ns1.xtm.es, ns2.xtm.es

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns0.xtm.es, ns1.xtm.es, ns2.xtm.es
NS in the zone
ns0.xtm.es, ns1.xtm.es, ns2.xtm.es
NameserverAddressesNetwork (AS)Glue
ns0.xtm.es78.31.69.47 2001:4ba0:cafe:2a3::1AS24961 MYLOC-AS - WIIT AG, DE AS24961 MYLOC-AS - WIIT AG, DE-
ns1.xtm.es195.201.22.221 2a01:4f8:1c1c:cb77::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
ns2.xtm.es45.86.125.55 2a0c:8900:1::aca7:3cbaAS200462 AS-ETH - Lennart Seitz trading as _ETH-Services_, DE AS200462 AS-ETH - Lennart Seitz trading as _ETH-Services_, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns0.xtm.es, ns1.xtm.es, ns2.xtm.es.
  • ✓ 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: AS200462 (AS-ETH - Lennart Seitz trading as _ETH-Services_, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses; AS24961 (MYLOC-AS - WIIT AG, DE): 2 addresses.
  • i
    All nameserver names under .es
    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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns0.xtm.es 78.31.69.47NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)
ns0.xtm.es 2001:4ba0:cafe:2a3::1NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)
ns1.xtm.es 195.201.22.221NOERROR, 7 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)
ns1.xtm.es 2a01:4f8:1c1c:cb77::1NOERROR, 6 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)
ns2.xtm.es 45.86.125.55NOERROR, 4 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)
ns2.xtm.es 2a0c:8900:1::aca7:3cbaNOERROR, 5 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns0.xtm.es: "PowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)"; ns1.xtm.es: "PowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)"; ns2.xtm.es: "PowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:24 by root@localhost)". Hide or replace the version string.
    #17
  • ✓ 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

warn

serial 2026100701 · primary dns-admin.hidden.xtm.es.td00.de

Found

Primary (MNAME)
dns-admin.hidden.xtm.es.td00.de
Contact (RNAME)
dns.thiesmueller.de.td00.de
Serial
2026100701
Refresh / retry
86400 s / 7200 s
Expire
1209600 s
Negative TTL
60 s

Serial per nameserver

NameserverSerial
ns0.xtm.es (78.31.69.47)2026100701
ns0.xtm.es (2001:4ba0:cafe:2a3::1)2026100701
ns1.xtm.es (195.201.22.221)2026100701
ns1.xtm.es (2a01:4f8:1c1c:cb77::1)2026100701
ns2.xtm.es (45.86.125.55)2026100701
ns2.xtm.es (2a0c:8900:1::aca7:3cba)2026100701

Checks

  • ✓ Serial 2026100701 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 2h, expire 14d, negative TTL 1m.
    #23
  • i
    Hidden master (not resolvable)
    The primary nameserver dns-admin.hidden.xtm.es.td00.de is not listed as a nameserver and does not resolve publicly: a hidden master, or a placeholder name. Some tools (e.g. dynamic updates) use MNAME to find the primary.
    #24
  • ✓ Contact dns@thiesmueller.de.td00.de #25
    The SOA RNAME dns.thiesmueller.de.td00.de means dns@thiesmueller.de.td00.de.
  • ✓ Date-based serial #26
    The serial 2026100701 follows the YYYYMMDDnn convention (2026-10-07).

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

12 records at the apex

Found

Read from
78.31.69.47:53
TypeValueTTL
SOAdns-admin.hidden.xtm.es.td00.de. dns.thiesmueller.de.td00.de. 2026100701 86400 7200 1209600 603600
NSns0.xtm.es.3600
NSns2.xtm.es.3600
NSns1.xtm.es.3600
A78.47.94.2161
AAAA2a01:4f8:c17:b6ee::11
MX20 no.pain.td00.de.1
MX10 pain.td00.de.1
MX30 fallbackmx.thies.xyz.1
TXT"v=spf1 mx a:tickets.td00.de a:lists.td00.de a:pain.td00.de ip4:116.203.69.194 ip6:2a01:4f8:1c1c:cfba:beef:beef:beef:beef ~all"1
TXT"google-site-verification=MW0Vh7F7QznFOH-ZmOTwrtKVJtiO-v7MHi7JIAW-j7I"1
CAA128 issue "letsencrypt.org"1

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1s), AAAA (1s), MX (1s). 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: letsencrypt.org.