Domain report: bremerhaven.de

Registration

info

.de country-code

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.
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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

warn

ns-02.briteline.de, ns01.bremerhaven.de

Nameserver	Addresses	Network (AS)	Glue
ns-02.briteline.de	82.198.211.1 2a03:9981:0:191::2222	AS30742 BRITELINE-AS - Bremen Briteline GmbH, DE AS30742 BRITELINE-AS - Bremen Briteline GmbH, DE	82.198.211.1
ns01.bremerhaven.de	185.204.97.31 2a0a:f540:feed:150::13	AS210759 asn-bit - Stadt Bremerhaven trading as Betrieb fuer Informationstechnologie Bremerhaven, DE AS210759 asn-bit - Stadt Bremerhaven trading as Betrieb fuer Informationstechnologie Bremerhaven, DE	185.204.97.31

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns-02.briteline.de, ns01.bremerhaven.de.

#6
✓ 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-02.briteline.de (glue 82.198.211.1, zone 82.198.211.1, 2a03:9981:0:191::2222); ns01.bremerhaven.de (glue 185.204.97.31, zone 185.204.97.31, 2a0a:f540:feed:150::13). Update the glue at your registrar.

#8
✓ 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 2 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS210759 (asn-bit - Stadt Bremerhaven trading as Betrieb fuer Informationstechnologie Bremerhaven, DE): 2 addresses; AS30742 (BRITELINE-AS - Bremen Briteline GmbH, DE): 2 addresses.
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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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

warn

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns-02.briteline.de 82.198.211.1	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns-02.briteline.de 2a03:9981:0:191::2222	NOERROR, 39 ms, authoritative	no	yes / yes	refused	-
ns01.bremerhaven.de 185.204.97.31	NOERROR, 19 ms, authoritative	no	yes / yes	refused	9.20.29-1~deb13u1-Debian
ns01.bremerhaven.de 2a0a:f540:feed:150::13	NOERROR, 11 ms, authoritative	no	yes / yes	refused	9.20.29-1~deb13u1-Debian

✓ All respond #14

All 4 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: ns01.bremerhaven.de: "9.20.29-1~deb13u1-Debian". 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.

pass

serial 2114091023 · primary ns01.bremerhaven.de

✓ Serial 2114091023 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 12h, retry 2h, expire 28d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver ns01.bremerhaven.de is one of the listed nameservers.
✓ Contact hostmaster@bit.bremerhaven.de #25

The SOA RNAME hostmaster.bit.bremerhaven.de means hostmaster@bit.bremerhaven.de.
✓ Timestamp serial #26

The serial 2114091023 is a Unix timestamp (2036-12-28 15:30 UTC).

warn

Not signed

info

9 records at the apex

Type	Value	TTL
SOA	ns01.bremerhaven.de. hostmaster.bit.bremerhaven.de. 2114091023 43200 7200 2419200 86400	86400
NS	ns-02.briteline.de.	86400
NS	ns01.bremerhaven.de.	86400
A	185.204.97.98	86400
AAAA	2a0a:f540:feed:2::19	86400
MX	20 mail.bremerhaven.de.	86400
TXT	"google-site-verification=U9UyieoBvtoUR_Ea_tVad0fHYGwglaG8Dn-H7f1UqDw"	300
TXT	"v=spf1 ip4:185.204.97.95 a:otc-de-spf.mms.t-systems-service.com a:kundentest.form-solutions.de -all"	300
TXT	"qs0sidavgtuq9s7f0aj7dnnq36"	300