hss.de

Checked 21 October 2026, 22:51 UTC · via 8.8.8.8
✗Problems found
19 passed 3 warnings 2 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

ns.inetra.de, ns2.inetra.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.inetra.de, ns2.inetra.de
NS in the zone
ns.inetra.de, ns2.inetra.de
NameserverAddressesNetwork (AS)Glue
ns.inetra.de62.159.47.3AS3320 DTAG - Deutsche Telekom AG, DE62.159.47.3
ns2.inetra.de5.189.158.105AS51167 CONTABO - Contabo GmbH, DE5.189.158.105

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.inetra.de, ns2.inetra.de.
    #6
  • ✓ 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 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS3320 (DTAG - Deutsche Telekom AG, DE): 1 address; AS51167 (CONTABO - Contabo GmbH, DE): 1 address.
  • i
    All nameserver names under .de
    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

fail

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.inetra.de 62.159.47.3NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2.inetra.de 5.189.158.105NOERROR, 11 ms, authoritativeOPENyes / yesALLOWED (165 records)9.16.44

Checks

  • ✓ All respond #14
    All 2 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✗
    Open recursion
    These nameservers resolve names for anyone, which makes them usable for DNS amplification attacks and cache poisoning: ns2.inetra.de (5.189.158.105). Disable recursion on authoritative servers.
    #16
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns2.inetra.de: "9.16.44". Hide or replace the version string.
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns2.inetra.de (5.189.158.105): 165 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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 2026091406 · primary ns.inetra.de

Found

Primary (MNAME)
ns.inetra.de
Contact (RNAME)
reckinge.hss.de
Serial
2026091406
Refresh / retry
5400 s / 1800 s
Expire
1209600 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns.inetra.de (62.159.47.3)2026091406
ns2.inetra.de (5.189.158.105)2026091406

Checks

  • ✓ Serial 2026091406 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 90m, retry 30m, expire 14d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.inetra.de is one of the listed nameservers.
  • ✓ Contact reckinge@hss.de #25
    The SOA RNAME reckinge.hss.de means reckinge@hss.de.
  • ✓ Date-based serial #26
    The serial 2026091406 follows the YYYYMMDDnn convention (2026-09-14).

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

12 records at the apex

Found

Read from
62.159.47.3:53
TypeValueTTL
SOAns.inetra.de. RECKINGE.hss.de. 2026091406 5400 1800 1209600 1080010800
NSns2.inetra.de.14400
NSns.inetra.de.14400
A52.29.127.014400
MX10 mx1.hss.de.14400
MX30 mx2.hss.de.14400
TXT"google-site-verification=TLOG895N17jn7f221kFOzf-z0r7ZA2xWT1uJ8gx-K7I"14400
TXT"google-site-verification=mUAKTsFEyPtPEKLO46bxDi6DvK4dKX73CoLp74EbWuc"14400
TXT"google-site-verification=pH8EPcbBIcH417JoyurjLKsLD7tTeQPkUmCpl6HxXR8"14400
TXT"cisco-ci-domain-verification=7590ed8adad883017ad62d4b010297b992237eaefc40188a0bdae38dd44003f"14400
TXT"v=spf1 mx ip4:80.156.26.182 a:ec2-52-28-249-192.eu-central-1.compute.amazonaws.com include:amazonses.com include:sendpulse.com a:mail.gubse.com -all"14400
TXT"openai-domain-verification=dv-Gr6SImGT3zbInAr0bjeDVF5A"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 4h. The NS TTL at the parent is 1d and in the zone 4h; 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