Domain report: kdo.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

ans0.ewetel.de, ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ans0.ewetel.de, ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net
NS in the zone: ans0.ewetel.de, ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net

Nameserver	Addresses	Network (AS)	Glue
ans0.ewetel.de	80.228.127.14	AS9145 EWETEL - EWE TEL GmbH, DE	80.228.127.14
ans1.ewetel.net	213.170.187.14	AS9145 EWETEL - EWE TEL GmbH, DE	-
ans2.ewetel.de	212.6.121.254	AS9145 EWETEL - EWE TEL GmbH, DE	212.6.121.254
ans3.ewetel.net	85.16.255.14	AS9145 EWETEL - EWE TEL GmbH, DE	-

Checks

✓ 4 nameservers #6

Delegated to ans0.ewetel.de, ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net.
✓ 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 4 IPv4 /24s and 0 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS9145 (EWETEL - EWE TEL GmbH, DE): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
✓ Nameserver names under 2 TLDs #12

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

No IPv6

None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ans0.ewetel.de 80.228.127.14	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ans1.ewetel.net 213.170.187.14	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ans2.ewetel.de 212.6.121.254	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ans3.ewetel.net 85.16.255.14	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-

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.
✓ 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 2026093278 · primary ans0.ewetel.de

Found

Primary (MNAME): ans0.ewetel.de
Contact (RNAME): hostmaster.ewetel.net
Serial: 2026093278
Refresh / retry: 10800 s / 3600 s
Expire: 604800 s
Negative TTL: 600 s

Serial per nameserver

Nameserver	Serial
ans0.ewetel.de (80.228.127.14)	2026093278
ans1.ewetel.net (213.170.187.14)	2026093278
ans2.ewetel.de (212.6.121.254)	2026093278
ans3.ewetel.net (85.16.255.14)	2026093278

Checks

✓ Serial 2026093278 everywhere #22

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

SOA refresh 3h, retry 1h, expire 7d, negative TTL 10m.
✓ Primary is a public nameserver #24

The primary nameserver ans0.ewetel.de is one of the listed nameservers.
✓ Contact hostmaster@ewetel.net #25

The SOA RNAME hostmaster.ewetel.net means hostmaster@ewetel.net.
✓ Timestamp serial #26

The serial 2026093278 is a Unix timestamp (2034-03-16 03:41 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 31 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
25113	RSASHA256 (8)	SHA256 A4993DC38DE56BCF…	yes
24280	RSASHA256 (8)	SHA256 C91EC2129E1367B8…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
25113	ZSK (256)	RSASHA256 (8)
24280	KSK (257)	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 25113 (SHA256), key tag 24280 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Signatures valid until 2026-10-31 #30

The earliest DNSKEY/SOA signature expires at 2026-10-31 15:17 UTC.
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

12 records at the apex

Found

Read from: 80.228.127.14:53

Type	Value	TTL
SOA	ans0.ewetel.de. hostmaster.ewetel.net. 2026093278 10800 3600 604800 600	86400
NS	ans1.ewetel.net.	86400
NS	ans0.ewetel.de.	86400
NS	ans3.ewetel.net.	86400
NS	ans2.ewetel.de.	86400
A	194.76.66.12	900
MX	10 mta2in.kdo.de.	900
MX	10 mta1in.kdo.de.	900
TXT	"v=spf1 mx ip4:194.76.65.37/32 ip4:194.76.65.40/32 ip4:194.76.65.116/32 ip4:194.76.65.109/32 ip4:194.76.65.119/32 -all"	900
TXT	"swisssign-check=2uXHJmzPEpJpAuPnUo2YbPLG4a4"	900
TXT	"anny-verification=a36eddd3-677a-4443-a2b4-6c551e0d2d84"	900
TXT	"atlassian-domain-verification=5fWrztvU77tYu63xYppHqmrT0yO0t2VjBD57aTmMych/i9i8XdZ0aqAvyIAiqCJR"	900

Checks

✓ TTLs within range #32

TTLs: A 15m, MX 15m, 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.
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