Domain report: dgrh.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

info

ns.portunity.de, ns2.portunity.de

Nameserver	Addresses	Network (AS)	Glue
ns.portunity.de	217.144.128.33 2a02:a00::a1	AS15987 PORTUNITY-AS - Portunity GmbH, DE AS15987 PORTUNITY-AS - Portunity GmbH, DE	217.144.128.33 2a02:a00::a1
ns2.portunity.de	188.246.0.33 2a02:a00:f::a2	AS15987 PORTUNITY-AS - Portunity GmbH, DE AS15987 PORTUNITY-AS - Portunity GmbH, DE	188.246.0.33 2a02:a00:f::a2

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.portunity.de, ns2.portunity.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 2 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS15987 (PORTUNITY-AS - Portunity 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
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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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

pass

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.portunity.de 217.144.128.33	NOERROR, 7 ms, authoritative	no	yes / yes	refused	-
ns.portunity.de 2a02:a00::a1	NOERROR, 8 ms, authoritative	no	yes / yes	refused	-
ns2.portunity.de 188.246.0.33	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-
ns2.portunity.de 2a02:a00:f::a2	NOERROR, 11 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 1780068410 · primary ns.portunity.de

✓ Serial 1780068410 everywhere #22

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

SOA refresh 3h, retry 1h, expire 1000h, negative TTL 6m.
✓ Primary is a public nameserver #24

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

The SOA RNAME hostmaster.portunity.de means hostmaster@portunity.de.
✓ Timestamp serial #26

The serial 1780068410 is a Unix timestamp (2026-05-29 15:26 UTC).

warn

Not signed

warn

7 records at the apex

Type	Value	TTL
SOA	ns.portunity.de. hostmaster.portunity.de. 1780068410 10800 3600 3600000 360	600
NS	ns2.portunity.de.	60
NS	ns.portunity.de.	60
A	195.201.190.236	60
MX	20 mailx2.geotek.de.	60
MX	10 mailx1.geotek.de.	60
TXT	"v=spf1 a mx a:mail.rheumaakademie.de a:rhak-web.geotek.de a:rhak-web2.geotek.de a:rhak-web3.geotek.de ~all"	60