Domain report: de-ipcc.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

info

ns3.dlr.de, ns3.knipp.de, ns4.dlr.de

Nameserver	Addresses	Network (AS)	Glue
ns3.dlr.de	194.94.201.125	AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE	194.94.201.125
ns3.knipp.de	195.253.113.3 2a01:5b0:31::3	AS8391 KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE AS8391 KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE	-
ns4.dlr.de	194.94.201.126	AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE	194.94.201.126

✓ 3 nameservers #6

Delegated to ns3.dlr.de, ns3.knipp.de, ns4.dlr.de.
✓ 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 1 IPv6 /48.
✓ 2 autonomous systems #11

The nameservers are spread over: AS680 (DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE): 2 addresses; AS8391 (KNIPP-AS - Knipp Medien und Kommunikation GmbH, DE): 2 addresses.
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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
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Partly IPv6

These nameservers have no IPv6 address: ns3.dlr.de, ns4.dlr.de.

#13

pass

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns3.dlr.de 194.94.201.125	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns3.knipp.de 195.253.113.3	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns3.knipp.de 2a01:5b0:31::3	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns4.dlr.de 194.94.201.126	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-

✓ 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.

pass

serial 2018022716 · primary ns3.dlr.de

✓ Serial 2018022716 everywhere #22

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

SOA refresh 3h, retry 1h, expire 21d, negative TTL 30m.
✓ Primary is a public nameserver #24

The primary nameserver ns3.dlr.de is one of the listed nameservers.
✓ Contact dnsmaster@dlr.de #25

The SOA RNAME dnsmaster.dlr.de means dnsmaster@dlr.de.
✓ Date-based serial #26

The serial 2018022716 follows the YYYYMMDDnn convention (2018-02-27).

warn

Not signed

info

5 records at the apex

✓ TTLs within range #32

TTLs: A 2h, NS 2h. The NS TTL at the parent is 1d and in the zone 2h; 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