Domain report: denic.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

pass

ns1.denic.de, ns2.denic.de, ns3.denic.de, ns4.denic.net

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ns1.denic.de, ns2.denic.de, ns3.denic.de, ns4.denic.net
NS in the zone: ns1.denic.de, ns2.denic.de, ns3.denic.de, ns4.denic.net

Nameserver	Addresses	Network (AS)	Glue
ns1.denic.de	77.67.63.106 2001:668:1f:11::106	AS3257 GTT-BACKBONE - GTT Communications Inc., US AS3257 GTT-BACKBONE - GTT Communications Inc., US	77.67.63.106 2001:668:1f:11::106
ns2.denic.de	81.91.164.6 2a02:568:0:2::54	AS8763 DENIC-AS - DENIC eG, DE AS31529 DENIC-ANYCAST-AS - DENIC eG, DE	81.91.164.6 2a02:568:0:2::54
ns3.denic.de	195.243.137.27 2003:8:14::106	AS3320 DTAG - Deutsche Telekom AG, DE AS3320 DTAG - Deutsche Telekom AG, DE	195.243.137.27 2003:8:14::106
ns4.denic.net	194.246.96.28 2a02:568:fe02::1c	AS31529 DENIC-ANYCAST-AS - DENIC eG, DE AS31529 DENIC-ANYCAST-AS - DENIC eG, DE	-

Checks

✓ 4 nameservers #6

Delegated to ns1.denic.de, ns2.denic.de, ns3.denic.de, ns4.denic.net.
✓ 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: ns1.denic.de, ns2.denic.de, ns3.denic.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 4 IPv4 /24s and 4 IPv6 /48s.
✓ 4 autonomous systems #11

The nameservers are spread over: AS31529 (DENIC-ANYCAST-AS - DENIC eG, DE): 3 addresses; AS3257 (GTT-BACKBONE - GTT Communications Inc., US): 2 addresses; AS3320 (DTAG - Deutsche Telekom AG, DE): 2 addresses; AS8763 (DENIC-AS - DENIC eG, DE): 1 address.
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .de, .net.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.denic.de 77.67.63.106	NOERROR, 12 ms, authoritative	no	yes / yes	refused	ns-2.nic.fr1.bind
ns1.denic.de 2001:668:1f:11::106	NOERROR, 14 ms, authoritative	no	yes / yes	refused	ns-1.nic.fr1.bind
ns2.denic.de 81.91.164.6	NOERROR, 5 ms, authoritative	no	yes / yes	refused	ns-2.nic.de1.bind
ns2.denic.de 2a02:568:0:2::54	NOERROR, 5 ms, authoritative	no	yes / yes	refused	ns-2.nic.de1.bind
ns3.denic.de 195.243.137.27	NOERROR, 5 ms, authoritative	no	yes / yes	refused	ns-1.nic.de10.bind
ns3.denic.de 2003:8:14::106	NOERROR, 4 ms, authoritative	no	yes / yes	refused	ns-2.nic.de10.bind
ns4.denic.net 194.246.96.28	NOERROR, 4 ms, authoritative	no	yes / yes	refused	ns-2.nic.de2.bind
ns4.denic.net 2a02:568:fe02::1c	NOERROR, 4 ms, authoritative	no	yes / yes	refused	ns-2.nic.de2.bind

Checks

✓ All respond #14

All 8 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.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns1.denic.de: "ns-2.nic.fr1.bind"; ns1.denic.de: "ns-1.nic.fr1.bind"; ns2.denic.de: "ns-2.nic.de1.bind"; ns3.denic.de: "ns-1.nic.de10.bind"; ns3.denic.de: "ns-2.nic.de10.bind"; ns4.denic.net: "ns-2.nic.de2.bind".

#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 1792586679 · primary ns1.denic.de

Found

Primary (MNAME): ns1.denic.de
Contact (RNAME): dns-operations.denic.de
Serial: 1792586679
Refresh / retry: 10800 s / 1800 s
Expire: 3600000 s
Negative TTL: 1800 s

Serial per nameserver

Nameserver	Serial
ns1.denic.de (77.67.63.106)	1792586679
ns1.denic.de (2001:668:1f:11::106)	1792586679
ns2.denic.de (81.91.164.6)	1792586679
ns2.denic.de (2a02:568:0:2::54)	1792586679
ns3.denic.de (195.243.137.27)	1792586679
ns3.denic.de (2003:8:14::106)	1792586679
ns4.denic.net (194.246.96.28)	1792586679
ns4.denic.net (2a02:568:fe02::1c)	1792586679

Checks

✓ Serial 1792586679 everywhere #22

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

SOA refresh 3h, retry 30m, expire 1000h, negative TTL 30m.
✓ Primary is a public nameserver #24

The primary nameserver ns1.denic.de is one of the listed nameservers.
✓ Contact dns-operations@denic.de #25

The SOA RNAME dns-operations.denic.de means dns-operations@denic.de.
✓ Timestamp serial #26

The serial 1792586679 is a Unix timestamp (2026-10-21 12:44 UTC).

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: 4 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
26155	RSASHA256 (8)	SHA256 078547BF937A225C…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
26155	KSK (257)	RSASHA256 (8)
29355	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 26155 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Signatures valid until 2026-11-04 #30

The earliest DNSKEY/SOA signature expires at 2026-11-04 12:44 UTC.
✓ NSEC3 as recommended #31

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

Records

info

12 records at the apex

Found

Read from: 77.67.63.106:53

Type	Value	TTL
SOA	ns1.denic.de. dns-operations.denic.de. 1792586679 10800 1800 3600000 1800	3600
NS	ns4.denic.net.	86400
NS	ns1.denic.de.	86400
NS	ns2.denic.de.	86400
NS	ns3.denic.de.	86400
A	81.91.170.12	3600
MX	10 mxext3.mailbox.org.	3600
MX	10 mxext1.mailbox.org.	3600
MX	10 mxext2.mailbox.org.	3600
MX	10 mxext4.mailbox.org.	3600
TXT	"miro-verification=bdea18ce07c1ee63c109bb12411e1bc252cbd2c8"	3600
TXT	"v=spf1 a mx ip4:81.91.161.53 ip4:81.91.161.54 ip6:2a02:568:102:211::1:16 ip6:2a02:568:102:211::1:17 include:mailbox.org ~all"	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.
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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