hessen.de

Checked 21 October 2026, 22:50 UTC · via 8.8.8.8
iAll checks passed
27 passed 0 warnings 0 failed 6 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

dns.hessen.de, dns030.hessen.de, dns040.hessen.de, dns1.hessen.de, ns.s.plusline.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns.hessen.de, dns030.hessen.de, dns040.hessen.de, dns1.hessen.de, ns.s.plusline.de
NS in the zone
dns.hessen.de, dns030.hessen.de, dns040.hessen.de, dns1.hessen.de, ns.s.plusline.de
NameserverAddressesNetwork (AS)Glue
dns.hessen.de141.90.2.1AS29515 HZD-AS - HZD-AS, DE141.90.2.1
dns030.hessen.de141.90.16.197AS29515 HZD-AS - HZD-AS, DE141.90.16.197
dns040.hessen.de141.90.16.198AS29515 HZD-AS - HZD-AS, DE141.90.16.198
dns1.hessen.de141.90.2.53AS29515 HZD-AS - HZD-AS, DE141.90.2.53
ns.s.plusline.de212.19.40.14 2a02:2e0:a:b:c:d:e:fAS12306 PLUSLINE - Plus.line AG, DE AS12306 PLUSLINE - Plus.line AG, DE212.19.40.14 2a02:2e0:a:b:c:d:e:f

Checks

  • ✓ 5 nameservers #6
    Delegated to dns.hessen.de, dns030.hessen.de, dns040.hessen.de, dns1.hessen.de, ns.s.plusline.de.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: dns.hessen.de, dns030.hessen.de, dns040.hessen.de, dns1.hessen.de.
  • ✓ 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 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12306 (PLUSLINE - Plus.line AG, DE): 2 addresses; AS29515 (HZD-AS - HZD-AS, DE): 4 addresses.
  • 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: dns.hessen.de, dns030.hessen.de, dns040.hessen.de, dns1.hessen.de.
    #13

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.hessen.de 141.90.2.1NOERROR, 5 ms, authoritativenoyes / yesrefused-
dns030.hessen.de 141.90.16.197NOERROR, 6 ms, authoritativenoyes / yesrefused-
dns040.hessen.de 141.90.16.198NOERROR, 6 ms, authoritativenoyes / yesrefused-
dns1.hessen.de 141.90.2.53NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns.s.plusline.de 212.19.40.14NOERROR, 4 ms, authoritativenoyes / yesrefusednameserver
ns.s.plusline.de 2a02:2e0:a:b:c:d:e:fNOERROR, 4 ms, authoritativenoyes / yesrefusednameserver

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns.s.plusline.de: "nameserver".
    #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

pass

serial 2026102244 · primary dns.hessen.de

Found

Primary (MNAME)
dns.hessen.de
Contact (RNAME)
hostmaster.hessen.de
Serial
2026102244
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
dns.hessen.de (141.90.2.1)2026102244
dns030.hessen.de (141.90.16.197)2026102244
dns040.hessen.de (141.90.16.198)2026102244
dns1.hessen.de (141.90.2.53)2026102244
ns.s.plusline.de (212.19.40.14)2026102244
ns.s.plusline.de (2a02:2e0:a:b:c:d:e:f)2026102244

Checks

  • ✓ Serial 2026102244 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.hessen.de is one of the listed nameservers.
  • ✓ Contact hostmaster@hessen.de #25
    The SOA RNAME hostmaster.hessen.de means hostmaster@hessen.de.
  • ✓ Date-based serial #26
    The serial 2026102244 follows the YYYYMMDDnn convention (2026-10-22).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
28 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
59366ECDSAP256SHA256 (13)SHA256 21424A574C0D6BA4…yes

DNSKEY in the zone

Key tagRoleAlgorithm
59366KSK (257)ECDSAP256SHA256 (13)
31815ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 59366 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-28 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-28 09:57 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

13 records at the apex

Found

Read from
141.90.2.1:53
TypeValueTTL
SOAdns.hessen.de. hostmaster.hessen.de. 2026102244 10800 3600 1209600 8640021600
NSdns.hessen.de.21600
NSdns1.hessen.de.21600
NSdns030.hessen.de.21600
NSdns040.hessen.de.21600
NSns.s.plusline.de.21600
A185.5.80.119300
MX20 mx-in-10.hessen.de.600
MX20 mx-in-20.hessen.de.600
TXT"v=spf1 redirect=_spf.hessen.de"21600
TXT"cisco-ci-domain-verification=67f1dbb8c0f4d8a9bcd7ea0e20cdcbc944eb985206d7bf0df144a499d92465d2"21600
TXT"google-site-verification=VcM82o8U-zXI3pME_O7_l9yLuYwVk4QrB-eO3XvKmU4"21600
TXT"swisssign-check=MxoQUPFtNT7KX09VaySXBr864wI"21600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 10m, NS 6h. The NS TTL at the parent is 1d and in the zone 6h; 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