Domain report: hansemerkur.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

apollo.ns.cloudflare.com, blair.ns.cloudflare.com

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: apollo.ns.cloudflare.com, blair.ns.cloudflare.com
NS in the zone: apollo.ns.cloudflare.com, blair.ns.cloudflare.com

Nameserver	Addresses	Network (AS)	Glue
apollo.ns.cloudflare.com	108.162.193.66 172.64.33.66 173.245.59.66 2606:4700:58::adf5:3b42 2a06:98c1:50::ac40:2142 2803:f800:50::6ca2:c142	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-
blair.ns.cloudflare.com	172.64.34.121 162.159.38.121 108.162.194.121 2803:f800:50::6ca2:c279 2a06:98c1:50::ac40:2279 2606:4700:50::a29f:2679	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: apollo.ns.cloudflare.com, blair.ns.cloudflare.com.

#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 6 IPv4 /24s and 4 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .com

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

warn

12 of 12 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
apollo.ns.cloudflare.com 108.162.193.66	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
apollo.ns.cloudflare.com 172.64.33.66	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
apollo.ns.cloudflare.com 173.245.59.66	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
apollo.ns.cloudflare.com 2606:4700:58::adf5:3b42	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
apollo.ns.cloudflare.com 2a06:98c1:50::ac40:2142	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
apollo.ns.cloudflare.com 2803:f800:50::6ca2:c142	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
blair.ns.cloudflare.com 172.64.34.121	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
blair.ns.cloudflare.com 162.159.38.121	NOERROR, 32 ms, authoritative	no	yes / yes	refused	2026.10.2
blair.ns.cloudflare.com 108.162.194.121	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
blair.ns.cloudflare.com 2803:f800:50::6ca2:c279	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
blair.ns.cloudflare.com 2a06:98c1:50::ac40:2279	NOERROR, 16 ms, authoritative	no	yes / yes	refused	2026.10.2
blair.ns.cloudflare.com 2606:4700:50::a29f:2679	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2

Checks

✓ All respond #14

All 12 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: apollo.ns.cloudflare.com: "2026.10.2"; blair.ns.cloudflare.com: "2026.10.2". 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.

SOA

pass

serial 2418106240 · primary apollo.ns.cloudflare.com

Found

Primary (MNAME): apollo.ns.cloudflare.com
Contact (RNAME): dns.cloudflare.com
Serial: 2418106240
Refresh / retry: 10000 s / 2400 s
Expire: 604800 s
Negative TTL: 1800 s

Serial per nameserver

Nameserver	Serial
apollo.ns.cloudflare.com (108.162.193.66)	2418106240
apollo.ns.cloudflare.com (172.64.33.66)	2418106240
apollo.ns.cloudflare.com (173.245.59.66)	2418106240
apollo.ns.cloudflare.com (2606:4700:58::adf5:3b42)	2418106240
apollo.ns.cloudflare.com (2a06:98c1:50::ac40:2142)	2418106240
apollo.ns.cloudflare.com (2803:f800:50::6ca2:c142)	2418106240
blair.ns.cloudflare.com (172.64.34.121)	2418106240
blair.ns.cloudflare.com (162.159.38.121)	2418106240
blair.ns.cloudflare.com (108.162.194.121)	2418106240
blair.ns.cloudflare.com (2803:f800:50::6ca2:c279)	2418106240
blair.ns.cloudflare.com (2a06:98c1:50::ac40:2279)	2418106240
blair.ns.cloudflare.com (2606:4700:50::a29f:2679)	2418106240

Checks

✓ Serial 2418106240 everywhere #22

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

SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
✓ Primary is a public nameserver #24

The primary nameserver apollo.ns.cloudflare.com is one of the listed nameservers.
✓ Contact dns@cloudflare.com #25

The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
✓ Timestamp serial #26

The serial 2418106240 is a Unix timestamp (2046-08-17 08:10 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 22 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
2371	ECDSAP256SHA256 (13)	SHA256 F1769ABFC76B8B79…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
2371	KSK (257)	ECDSAP256SHA256 (13)
34505	ZSK (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 2371 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Short-lived signatures (online signing) #30

Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-20 21:42 UTC and expires at 2026-10-22 23:42 UTC.
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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

pass

38 records at the apex

Found

Read from: 108.162.193.66:53

Type	Value	TTL
SOA	apollo.ns.cloudflare.com. dns.cloudflare.com. 2418106240 10000 2400 604800 1800	1800
NS	apollo.ns.cloudflare.com.	86400
NS	blair.ns.cloudflare.com.	86400
A	185.190.195.111	300
MX	10 vamail01.hansemerkur.de.	86400
MX	10 vamail02.hansemerkur.de.	86400
MX	20 vamail03.hansemerkur.de.	86400
TXT	"MS=E1F235929829B02028756E542BAF441D4600E197"	300
TXT	"MS=ms16209274"	300
TXT	"MS=ms74319961"	300
TXT	"Sendinblue-code:3800932926b2547621bc9e375e222a84"	300
TXT	"adobe-idp-site-verification=f75d435188e35e1c2e9ce40dfff86ddfee574daf4823a552fa03e9d9a61d6d1a"	300
TXT	"apple-domain-verification=EDuV4zFezlXJiejl"	300
TXT	"brevo-code:9bbc4fa99964a0b611fb8744a423101f"	300
TXT	"brevo-code:ba202eb1499063a1f7cb8a952514cc4a"	300
TXT	"cisco-ci-domain-verification=7c4ed7acdd7acf141a351b492d48d3cb771fdc480a1b82315460c7cdda3f4be8"	300
TXT	"miro-verification=a0499f675c0e44eeedcfd6bf640679421f90557e"	300
TXT	"swisssign-check=JOrYZfJYQRKa37F8VBkG16kvPQtLvYV0xXYKlpFKMf"	300
TXT	"teamviewer-sso-verification=56aa49bd08db40ffa4ab57e962f0717c"	300
TXT	"v=spf1 include:spf-ip-a.hansemerkur.de include:spf-ip-b.hansemerkur.de include:spf-include-a.hansemerkur.de -all"	300
CAA	0 issue "amazon.com"	1440
CAA	0 issue "amazonaws.com"	1440
CAA	0 issue "amazontrust.com"	1440
CAA	0 issue "awstrust.com"	1440
CAA	0 issue "comodoca.com"	1440
CAA	0 issue "digicert.com; cansignhttpexchanges=yes"	1440
CAA	0 issue "letsencrypt.org"	1440
CAA	0 issue "pki.goog; cansignhttpexchanges=yes"	1440
CAA	0 issue "ssl.com"	1440
CAA	0 issuewild "amazon.com"	1440
CAA	0 issuewild "amazonaws.com"	1440
CAA	0 issuewild "amazontrust.com"	1440
CAA	0 issuewild "awstrust.com"	1440
CAA	0 issuewild "comodoca.com"	1440
CAA	0 issuewild "digicert.com; cansignhttpexchanges=yes"	1440
CAA	0 issuewild "letsencrypt.org"	1440
CAA	0 issuewild "pki.goog; cansignhttpexchanges=yes"	1440
CAA	0 issuewild "ssl.com"	1440

Checks

✓ TTLs within range #32

TTLs: A 5m, MX 1d, 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: amazon.com, amazonaws.com, amazontrust.com, awstrust.com, comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.