Domain report: stiftung-hsh.de

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

ns3.powerdns.de, ns4.powerdns.de

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ns3.powerdns.de, ns4.powerdns.de
NS in the zone: ns3.powerdns.de, ns4.powerdns.de

Nameserver	Addresses	Network (AS)	Glue
ns3.powerdns.de	194.117.254.28 2a05:d580:0:1337::1c	AS199753 UDMEDIA-AS - UD Media GmbH, DE AS199753 UDMEDIA-AS - UD Media GmbH, DE	194.117.254.28 2a05:d580:0:1337::1c
ns4.powerdns.de	116.203.122.234 2a01:4f8:c2c:17c6::1	AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE	116.203.122.234 2a01:4f8:c2c:17c6::1

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.powerdns.de, ns4.powerdns.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 2 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS199753 (UDMEDIA-AS - UD Media GmbH, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns3.powerdns.de 194.117.254.28	NOERROR, 3 ms, authoritative	no	yes / yes	refused	Served by PowerDNS - https://www.powerdns.com/
ns3.powerdns.de 2a05:d580:0:1337::1c	NOERROR, 4 ms, authoritative	no	yes / yes	refused	Served by PowerDNS - https://www.powerdns.com/
ns4.powerdns.de 116.203.122.234	NOERROR, 3 ms, authoritative	no	yes / yes	refused	Served by PowerDNS - https://www.powerdns.com/
ns4.powerdns.de 2a01:4f8:c2c:17c6::1	NOERROR, 2 ms, authoritative	no	yes / yes	refused	Served by PowerDNS - https://www.powerdns.com/

Checks

✓ 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns3.powerdns.de: "Served by PowerDNS - https://www.powerdns.com/"; ns4.powerdns.de: "Served by PowerDNS - https://www.powerdns.com/".

#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 2026080404 · primary ns3.powerdns.de

Found

Primary (MNAME): ns3.powerdns.de
Contact (RNAME): technik.udmedia.de
Serial: 2026080404
Refresh / retry: 10800 s / 3600 s
Expire: 1209600 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns3.powerdns.de (194.117.254.28)	2026080404
ns3.powerdns.de (2a05:d580:0:1337::1c)	2026080404
ns4.powerdns.de (116.203.122.234)	2026080404
ns4.powerdns.de (2a01:4f8:c2c:17c6::1)	2026080404

Checks

✓ Serial 2026080404 everywhere #22

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

SOA refresh 3h, retry 1h, expire 14d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns3.powerdns.de is one of the listed nameservers.
✓ Contact technik@udmedia.de #25

The SOA RNAME technik.udmedia.de means technik@udmedia.de.
✓ Date-based serial #26

The serial 2026080404 follows the YYYYMMDDnn convention (2026-08-04).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 29 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
46469	ECDSAP256SHA256 (13)	SHA256 1F8415C78EADA91C…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
46469	KSK (257)	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 46469 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
!

Signatures expire soon

The earliest signature expires at 2026-10-29 00:00 UTC (in 167h0m0s). Check that automatic re-signing works.

#30
i

NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

info

11 records at the apex

Found

Read from: 194.117.254.28:53

Type	Value	TTL
SOA	ns3.powerdns.de. technik.udmedia.de. 2026080404 10800 3600 1209600 3600	3600
NS	ns4.powerdns.de.	3600
NS	ns3.powerdns.de.	3600
A	185.89.56.61	600
AAAA	2a05:d580:0:2039::2	600
MX	120 mailrelay01.computer-manufaktur.de.	3600
MX	100 faust.stiftung-hsh.de.	3600
TXT	"zone-ownership-verification-e65ddb75e2c63a14a4cc0b71485e7c896dd71ce15b4ade405f2de3efb8dbdcaf"	3600
TXT	"amazonses:i2DzQzfbf9iVgi8GFyKKBF9YPVv397etfd17/Ysrpf4="	3600
TXT	"amazonses:Yz0AS9jgFLsZC8PZxw4rwgzeR51NwHjxwxkw98xuSpA="	3600
TXT	"MS=ms38212995"	3600

Checks

✓ TTLs within range #32

TTLs: A 10m, AAAA 10m, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
i

Wildcard record

A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.

#34
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