Domain report: imkerfilm.de

Registration

info

.de country-code

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.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.kru.pl, ns2.kru.pl

Nameserver	Addresses	Network (AS)	Glue
ns1.kru.pl	217.182.200.139	AS16276 OVH - OVH SAS, FR	-
ns2.kru.pl	167.235.156.239	AS24940 HETZNER-AS - Hetzner Online GmbH, DE	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.kru.pl, ns2.kru.pl.

#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.
✓ 2 autonomous systems #11

The nameservers are spread over: AS16276 (OVH - OVH SAS, FR): 1 address; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 1 address.
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All nameserver names under .pl

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.kru.pl 217.182.200.139	NOERROR, 22 ms, authoritative	no	yes / yes	refused	DNS
ns2.kru.pl 167.235.156.239	NOERROR, 4 ms, authoritative	no	yes / yes	refused	DNS

✓ 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.kru.pl: "DNS"; ns2.kru.pl: "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.

warn

serial 2026051700 · primary ns1.kru.pl

Nameserver	Serial
ns1.kru.pl (217.182.200.139)	2026051700
ns2.kru.pl (167.235.156.239)	2026051700

✓ Serial 2026051700 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

refresh 5m is outside 20m–1d; retry 1h should be shorter than refresh 5m. Current values: refresh 5m, retry 1h, expire 14d, negative TTL 1d.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.kru.pl is one of the listed nameservers.
✓ Contact hostmaster@imkerfilm.de #25

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

The serial 2026051700 follows the YYYYMMDDnn convention (2026-05-17).

warn

Not signed

info

6 records at the apex

Type	Value	TTL
SOA	ns1.kru.pl. hostmaster.imkerfilm.de. 2026051700 300 3600 1209600 86400	300
NS	ns2.kru.pl.	300
NS	ns1.kru.pl.	300
A	194.53.193.136	300
MX	10 mail.imkerfilm.de.	300
TXT	"v=spf1 a mx ip4:194.53.193.135 ~all"	300

✓ TTLs within range #32

TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1d and in the zone 5m; 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.
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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