Domain report: cool-condition.de

Registration

info

.de country-code

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.
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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

warn

ns1.672.cluster-nbg1.de, ns2.672.cluster-nbg1.de

Nameserver	Addresses	Network (AS)	Glue
ns1.672.cluster-nbg1.de	83.171.239.12	AS201206 LINEVAST - Droptop GmbH, DE	-
ns2.672.cluster-nbg1.de	83.171.238.2	AS201206 LINEVAST - Droptop GmbH, DE	-

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.672.cluster-nbg1.de, ns2.672.cluster-nbg1.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 (AS201206 (LINEVAST - Droptop 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
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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

info

2 of 2 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.672.cluster-nbg1.de 83.171.239.12	NOERROR, 1 ms, authoritative	no	yes / yes	refused	none
ns2.672.cluster-nbg1.de 83.171.238.2	NOERROR, 0 ms, authoritative	no	yes / yes	refused	none

✓ 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.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns1.672.cluster-nbg1.de: "none"; ns2.672.cluster-nbg1.de: "none".

#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.

pass

serial 2026100201 · primary ns1.672.cluster-nbg1.de

Nameserver	Serial
ns1.672.cluster-nbg1.de (83.171.239.12)	2026100201
ns2.672.cluster-nbg1.de (83.171.238.2)	2026100201

✓ Serial 2026100201 everywhere #22

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

SOA refresh 3h, retry 1h, expire 14d, negative TTL 3h.
✓ Primary is a public nameserver #24

The primary nameserver ns1.672.cluster-nbg1.de is one of the listed nameservers.
✓ Contact coolcondition@outlook.com #25

The SOA RNAME coolcondition.outlook.com means coolcondition@outlook.com.
✓ Date-based serial #26

The serial 2026100201 follows the YYYYMMDDnn convention (2026-10-02).

warn

Not signed

info

6 records at the apex

Type	Value	TTL
SOA	ns1.672.cluster-nbg1.de. coolcondition.outlook.com. 2026100201 10800 3600 1209600 10800	86400
NS	ns1.672.cluster-nbg1.de.	86400
NS	ns2.672.cluster-nbg1.de.	86400
A	83.171.239.12	86400
MX	10 mail.cool-condition.de.	86400
TXT	"v=spf1 +a +mx +a:672.cluster-nbg1.de -all"	86400