Domain report: bundesdruckerei.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

warn

ns1.bdr.de, ns2.bdr.de

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ns1.bdr.de, ns2.bdr.de
NS in the zone: ns1.bdr.de, ns2.bdr.de

Nameserver	Addresses	Network (AS)	Glue
ns1.bdr.de	193.28.64.19	AS210544 bdr - Bundesdruckerei GmbH, DE	193.28.64.19
ns2.bdr.de	192.124.252.19	AS210544 bdr - Bundesdruckerei GmbH, DE	192.124.252.19

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.bdr.de, ns2.bdr.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 0 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS210544 (bdr - Bundesdruckerei GmbH, DE): 2 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
!

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

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.bdr.de 193.28.64.19	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns2.bdr.de 192.124.252.19	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-

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 2026101900 · primary ns1.bdr.de

Found

Primary (MNAME): ns1.bdr.de
Contact (RNAME): domadm.bdr.de
Serial: 2026101900
Refresh / retry: 14400 s / 3600 s
Expire: 1209600 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns1.bdr.de (193.28.64.19)	2026101900
ns2.bdr.de (192.124.252.19)	2026101900

Checks

✓ Serial 2026101900 everywhere #22

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

SOA refresh 4h, retry 1h, expire 14d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns1.bdr.de is one of the listed nameservers.
✓ Contact domadm@bdr.de #25

The SOA RNAME domadm.bdr.de means domadm@bdr.de.
✓ Date-based serial #26

The serial 2026101900 follows the YYYYMMDDnn convention (2026-10-19).

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: 14 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
63671	RSASHA256 (8)	SHA256 B05748A944615E25…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
63671	KSK (257)	RSASHA256 (8)
51330	ZSK (256)	RSASHA256 (8)

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 63671 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Signatures valid until 2026-11-14 #30

The earliest DNSKEY/SOA signature expires at 2026-11-14 15:31 UTC.
✓ NSEC3 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

39 records at the apex

Found

Read from: 193.28.64.19:53

Type	Value	TTL
SOA	ns1.bdr.de. domadm.bdr.de. 2026101900 14400 3600 1209600 3600	3600
NS	ns2.bdr.de.	86400
NS	ns1.bdr.de.	86400
A	193.28.64.55	3600
MX	10 mx1.bdr.de.	3600
MX	20 mx2.bdr.de.	3600
TXT	"asf2qerg2rtgrt2bfgwb2trh"	3600
TXT	"docker-verification=f6bf7752-8659-4194-9514-c92546416db5"	3600
TXT	"D-TRUST=Q8D93PFFBH8CWVHC6CZA6WB"	3600
TXT	"D-TRUST=MH79HPYG6PBC96LZPNTON2C"	3600
TXT	"MS=ms21357270"	3600
TXT	"D-TRUST=2QNQLG7KHLC2K5X"	3600
TXT	"google-site-verification=wiNHu7Fbe7FqSsxs-9mTrbyA_quPTFuTRa3LDELj24s"	3600
TXT	"D-TRUST=RIBT9N26LP9ZP53G3GLUIE7"	3600
TXT	"D-TRUST=HZW3WRS6EILWLPQ"	3600
TXT	"D-TRUST=X8CIXP5OE8GMVYN"	3600
TXT	"miro-verification=7dfa6736d95b52bc59bc1b13ea026d78664abdaa"	3600
TXT	"D-TRUST=HT43ESIYLE4JSR6"	3600
TXT	"D-TRUST=TT5L3GDFPQ64QJK"	3600
TXT	"D-TRUST=6SLFL6YEL2KRMBF"	3600
TXT	"D-TRUST=ZXNXBQ37W8H27J2"	3600
TXT	"D-TRUST=BPGBTOK4AGL89YJ25Y5O9JL"	3600
TXT	"apple-domain-verification=6VYJRlyej2kpdkWG"	3600
TXT	"v=spf1 include:bdr.de ~all"	3600
TXT	"D-TRUST=V6OJ7K4Q6WX82XD"	3600
TXT	"D-TRUST=XLWLOBMPNMYBEE4Z7OSF3XY"	3600
TXT	"D-TRUST=UU7UGYNES7U3YJBIRX8VBYL"	3600
TXT	"D-TRUST=IQ9N9JCCF7OA4Y2"	3600
TXT	"passguard-verify=kb15sLiHcOdsVgPuefGbeN0Sbv6ScV2JAd_7m5jArSU"	3600
TXT	"atlassian-domain-verification=TyFvAh9UaDucogw4KifUaA4fN73JijAf6xUadEtFKsYhsS2g7RecAJ0NeZU9I9f0"	3600
CAA	0 issuemail "d-trust.net"	3600
CAA	0 issue "amazontrust.com"	3600
CAA	0 issue "awstrust.com"	3600
CAA	0 iodef "mailto:it-cm@bdr.de"	3600
CAA	0 issue "d-trust.net"	3600
CAA	0 issue "amazon.com"	3600
CAA	0 issue "amazonaws.com"	3600
CAA	0 issue "letsencrypt.org"	3600
CAA	0 issuewild "d-trust.net"	3600

Checks

✓ TTLs within range #32

TTLs: A 1h, MX 1h, NS 1d.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
✓ CAA restricts issuance #35

Certificates may be issued by: amazontrust.com, awstrust.com, d-trust.net, amazon.com, amazonaws.com, letsencrypt.org.