neumuenster.de

Checked 21 October 2026, 23:31 UTC · via 8.8.8.8
✗Problems found
17 passed 2 warnings 2 failed 8 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.neumuenster.de, ns03.versatel.de, ns2.neumuenster.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.neumuenster.de, ns03.versatel.de, ns2.neumuenster.de
NS in the zone
ns.neumuenster.de, ns03.versatel.de, ns2.neumuenster.de
NameserverAddressesNetwork (AS)Glue
ns.neumuenster.de212.93.31.115 2001:1438:1018:101::53AS8881 VERSATEL - 1&1 Versatel GmbH, DE AS8881 VERSATEL - 1&1 Versatel GmbH, DE212.93.31.115
ns03.versatel.de193.219.15.17AS8881 VERSATEL - 1&1 Versatel GmbH, DE193.219.15.17
ns2.neumuenster.de94.135.229.149 2001:1438:1018:102::53AS8881 VERSATEL - 1&1 Versatel GmbH, DE AS8881 VERSATEL - 1&1 Versatel GmbH, DE94.135.229.149

Checks

  • ✓ 3 nameservers #6
    Delegated to ns.neumuenster.de, ns03.versatel.de, ns2.neumuenster.de.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns.neumuenster.de (glue 212.93.31.115, zone 212.93.31.115, 2001:1438:1018:101::53); ns2.neumuenster.de (glue 94.135.229.149, zone 94.135.229.149, 2001:1438:1018:102::53). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:1438:1018::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS8881 (VERSATEL - 1&1 Versatel GmbH, DE): 5 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns03.versatel.de.
    #13

Nameservers

fail

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.neumuenster.de 212.93.31.115NOERROR, 16 ms, authoritativenono / yesrefusedNMS Nameservice
ns.neumuenster.de 2001:1438:1018:101::53NOERROR, 20 ms, authoritativenoyes / yesALLOWED (277 records)NMS Nameservice
ns03.versatel.de 193.219.15.17NOERROR, 12 ms, authoritativenoyes / yesrefusedNo version info available (refused).
ns2.neumuenster.de 94.135.229.149NOERROR, 16 ms, authoritativenono / yesrefusedNMS Nameservice
ns2.neumuenster.de 2001:1438:1018:102::53NOERROR, 17 ms, authoritativenoyes / yesALLOWED (277 records)NMS Nameservice

Checks

  • ✓ All respond #14
    All 5 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns.neumuenster.de: "NMS Nameservice"; ns03.versatel.de: "No version info available (refused)."; ns2.neumuenster.de: "NMS Nameservice".
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns.neumuenster.de (2001:1438:1018:101::53): 277 records; ns2.neumuenster.de (2001:1438:1018:102::53): 277 records. Restrict zone transfers to your secondary servers.
    #18
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns.neumuenster.de (212.93.31.115): dial tcp 212.93.31.115:53: i/o timeout; ns2.neumuenster.de (94.135.229.149): dial tcp 94.135.229.149:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026101204 · primary ns.neumuenster.de

Found

Primary (MNAME)
ns.neumuenster.de
Contact (RNAME)
hostmaster.neumuenster.de
Serial
2026101204
Refresh / retry
10800 s / 1800 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns.neumuenster.de (212.93.31.115)2026101204
ns.neumuenster.de (2001:1438:1018:101::53)2026101204
ns03.versatel.de (193.219.15.17)2026101204
ns2.neumuenster.de (94.135.229.149)2026101204
ns2.neumuenster.de (2001:1438:1018:102::53)2026101204

Checks

  • ✓ Serial 2026101204 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 30m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.neumuenster.de is one of the listed nameservers.
  • ✓ Contact hostmaster@neumuenster.de #25
    The SOA RNAME hostmaster.neumuenster.de means hostmaster@neumuenster.de.
  • ✓ Date-based serial #26
    The serial 2026101204 follows the YYYYMMDDnn convention (2026-10-12).

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

16 records at the apex

Found

Read from
212.93.31.115:53
TypeValueTTL
SOAns.neumuenster.de. hostmaster.neumuenster.de. 2026101204 10800 1800 1209600 3600600
NSns2.neumuenster.de.600
NSns.neumuenster.de.600
NSns03.versatel.de.600
A176.52.247.205600
AAAA2a03:2a00:1200:2::ac14:1589600
MX10 mx1.neumuenster.de.600
MX20 mx2.neumuenster.de.600
TXT"brevo-code:21ba123ca6de579dfebab0929faa7801"600
TXT"v=spf1 a mx a:mx.neumuenster.de ip4:176.52.247.205 ip4:51.195.9.216 ip6:2a03:2a00:1200:0000:0001:0000:0000:3533 include:agenturserver.de include:wttone.net include:spf.brevo.com -all"600
TXT"9b176d88079cf3a613c687053e25003cbd343df6617f4474f19e1da7b8a905d"600
TXT"cisco-ci-domain-verification=212090f45caf59131931f771f605ee852f5034d9ea91a7d8d446b4adfb842ae9"600
TXT"swisssign-check=wEp9c-VJDoIbZzBxkY56ojTgVuk"600
TXT"MS=10011C5694031DCF9204C8A77A6AD001C40ABFD7"600
TXT"apple-domain-verification=H496d26GhiD05WSe"600
TXT"google-site-verification=Bm3Wws5IOX1MN6roo2sdQ81aKEZ1PFWCt_9raFJEKdo"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, AAAA 10m, MX 10m, NS 10m. The NS TTL at the parent is 1d and in the zone 10m; 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