Domain report: artcom.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

ns.artcom.de, ns1.domaindiscount24.net, ns2.artcom.de, ns3.artcom.de

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ns.artcom.de, ns1.domaindiscount24.net, ns2.artcom.de, ns3.artcom.de
NS in the zone: ns.artcom.de, ns1.domaindiscount24.net, ns2.artcom.de, ns3.artcom.de

Nameserver	Addresses	Network (AS)	Glue
ns.artcom.de	192.76.129.38	AS8881 VERSATEL - 1&1 Versatel GmbH, DE	192.76.129.38
ns1.domaindiscount24.net	193.227.117.34 2a04:2b00:14cc::34	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	-
ns2.artcom.de	193.101.179.34	AS8881 VERSATEL - 1&1 Versatel GmbH, DE	193.101.179.34
ns3.artcom.de	62.72.73.50	AS8881 VERSATEL - 1&1 Versatel GmbH, DE	62.72.73.50

Checks

✓ 4 nameservers #6

Delegated to ns.artcom.de, ns1.domaindiscount24.net, ns2.artcom.de, ns3.artcom.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: ns.artcom.de, ns2.artcom.de, ns3.artcom.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 1 IPv6 /48.
✓ 2 autonomous systems #11

The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 2 addresses; AS8881 (VERSATEL - 1&1 Versatel GmbH, DE): 3 addresses.
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .de, .net.
i

Partly IPv6

These nameservers have no IPv6 address: ns.artcom.de, ns2.artcom.de, ns3.artcom.de.

#13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.artcom.de 192.76.129.38	NOERROR, 18 ms, authoritative	no	yes / yes	refused	-
ns1.domaindiscount24.net 193.227.117.34	NOERROR, 3 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns1.domaindiscount24.net 2a04:2b00:14cc::34	NOERROR, 4 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns2.artcom.de 193.101.179.34	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns3.artcom.de 62.72.73.50	NOERROR, 14 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 5 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: ns1.domaindiscount24.net: "RcodeZero DNS".

#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 2026101202 · primary ns.artcom.de

Found

Primary (MNAME): ns.artcom.de
Contact (RNAME): hostmaster.artcom.de
Serial: 2026101202
Refresh / retry: 21600 s / 2700 s
Expire: 1209600 s
Negative TTL: 43200 s

Serial per nameserver

Nameserver	Serial
ns.artcom.de (192.76.129.38)	2026101202
ns1.domaindiscount24.net (193.227.117.34)	2026101202
ns1.domaindiscount24.net (2a04:2b00:14cc::34)	2026101202
ns2.artcom.de (193.101.179.34)	2026101202
ns3.artcom.de (62.72.73.50)	2026101202

Checks

✓ Serial 2026101202 everywhere #22

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

SOA refresh 6h, retry 45m, expire 14d, negative TTL 12h.
✓ Primary is a public nameserver #24

The primary nameserver ns.artcom.de is one of the listed nameservers.
✓ Contact hostmaster@artcom.de #25

The SOA RNAME hostmaster.artcom.de means hostmaster@artcom.de.
✓ Date-based serial #26

The serial 2026101202 follows the YYYYMMDDnn convention (2026-10-12).

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: 10 January 2027

DS at the parent

Key tag	Algorithm	Digest	Matches a key
58648	ECDSAP256SHA256 (13)	SHA256 3CD036D866DC486C…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
41353	ZSK (256)	ECDSAP256SHA256 (13)
58648	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 58648 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2027-01-10 #30

The earliest DNSKEY/SOA signature expires at 2027-01-10 13:35 UTC.
✓ NSEC3 as recommended #31

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

Records

pass

18 records at the apex

Found

Read from: 192.76.129.38:53

Type	Value	TTL
SOA	ns.artcom.de. hostmaster.artcom.de. 2026101202 21600 2700 1209600 43200	900
NS	ns2.artcom.de.	900
NS	ns.artcom.de.	900
NS	ns1.domaindiscount24.net.	900
NS	ns3.artcom.de.	900
A	192.76.129.45	600
MX	10 artcom-de.mail.protection.outlook.com.	900
TXT	"google-site-verification=yUf9EAt93pudmQB8x53IGlsztK0UeNUqtehNoICriGI"	900
TXT	"apple-domain-verification=5XywnNAE8FUBKpJT"	900
TXT	"v=spf1 ip4:193.101.179.25/32 ip4:192.76.129.50/32 ip4:87.79.93.32/32 include:_spf.atlassian.net include:spf.protection.outlook.com -all"	900
TXT	"MS=ms20384599"	900
TXT	"langdock-verify=yG2Z_0wp0TZgCcG1Fb0up7FYcwVRsTnKFHXd_h0i_Kw"	900
TXT	"atlassian-sending-domain-verification=cfdd5f2f-ad68-4a91-aebc-aa05ccaeeb65"	900
CAA	0 issue "letsencrypt.org"	900
CAA	0 issue "artcom.de"	900
CAA	0 issuewild "letsencrypt.org"	900
CAA	0 issue "certum.pl"	900
CAA	0 issuewild "certum.pl"	900

Checks

✓ TTLs within range #32

TTLs: A 10m, MX 15m, NS 15m. The NS TTL at the parent is 1d and in the zone 15m; 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.
✓ CAA restricts issuance #35

Certificates may be issued by: letsencrypt.org, artcom.de, certum.pl.