goertz.de

Checked 21 October 2026, 22:40 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

ns1.exsrv.eu, ns2.exsrv.eu

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.exsrv.eu, ns2.exsrv.eu
NS in the zone
ns1.exsrv.eu, ns2.exsrv.eu
NameserverAddressesNetwork (AS)Glue
ns1.exsrv.eu138.2.153.69AS31898 ORACLE-BMC-31898 - Oracle Corporation, US-
ns2.exsrv.eu185.244.194.90AS197540 netcup-AS - netcup GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.exsrv.eu, ns2.exsrv.eu.
    #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: AS197540 (netcup-AS - netcup GmbH, DE): 1 address; AS31898 (ORACLE-BMC-31898 - Oracle Corporation, US): 1 address.
  • i
    All nameserver names under .eu
    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

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.exsrv.eu 138.2.153.69NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2.exsrv.eu 185.244.194.90NOERROR, 0 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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 3000000000 · primary ns1.exsrv.eu

Found

Primary (MNAME)
ns1.exsrv.eu
Contact (RNAME)
root.goertz.de
Serial
3000000000
Refresh / retry
14400 s / 1800 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.exsrv.eu (138.2.153.69)3000000000
ns2.exsrv.eu (185.244.194.90)3000000000

Checks

  • ✓ Serial 3000000000 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.exsrv.eu is one of the listed nameservers.
  • ✓ Contact root@goertz.de #25
    The SOA RNAME root.goertz.de means root@goertz.de.
  • ✓ Timestamp serial #26
    The serial 3000000000 is a Unix timestamp (2065-01-24 05:20 UTC).

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

9 records at the apex

Found

Read from
138.2.153.69:53
TypeValueTTL
SOAns1.exsrv.eu. root.goertz.de. 3000000000 14400 1800 1209600 360014400
NSns1.exsrv.eu.14400
NSns2.exsrv.eu.14400
A23.227.38.6514400
MX10 goertz-de.mail.protection.outlook.com.14400
TXT"google-site-verification=VmgoP1Vd-ifGtLzF8ACrJY0BEUz9BD-vLMhi4rV5cxQ"14400
TXT"have-i-been-pwned-verification=a100dd4271a18f919e9beea963f0ab56"14400
TXT"facebook-domain-verification=r8geatg8gli4kknmcajiabel93huaz"14400
TXT"v=spf1 include:spf1.goertz.de include:spf2.goertz.de include:spf.protection.outlook.com -all"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