Domain report: harryreichert.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.
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

warn

ns01.1blu.de, ns02.1blu.de

Nameserver	Addresses	Network (AS)	Glue
ns01.1blu.de	87.238.195.66	AS42730 EVANZOAS - EVANZO e-commerce GmbH, DE	-
ns02.1blu.de	178.254.5.130	AS42730 EVANZOAS - EVANZO e-commerce GmbH, DE	-

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns01.1blu.de, ns02.1blu.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 (AS42730 (EVANZOAS - EVANZO e-commerce 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
i

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

warn

2 of 2 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns01.1blu.de 87.238.195.66	NOERROR, 13 ms, authoritative	no	yes / yes	refused	PowerDNS Authoritative Server 4.5.3
ns02.1blu.de 178.254.5.130	NOERROR, 15 ms, authoritative	no	yes / yes	refused	PowerDNS Authoritative Server 4.5.3

✓ 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.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns01.1blu.de: "PowerDNS Authoritative Server 4.5.3"; ns02.1blu.de: "PowerDNS Authoritative Server 4.5.3". Hide or replace the version string.

#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 2026021002 · primary ns01.1blu.de

Nameserver	Serial
ns01.1blu.de (87.238.195.66)	2026021002
ns02.1blu.de (178.254.5.130)	2026021002

✓ Serial 2026021002 everywhere #22

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

SOA refresh 12h, retry 90m, expire 7d, negative TTL 5m.
✓ Primary is a public nameserver #24

The primary nameserver ns01.1blu.de is one of the listed nameservers.
✓ Contact hostmaster@1blu.de #25

The SOA RNAME hostmaster.1blu.de means hostmaster@1blu.de.
✓ Date-based serial #26

The serial 2026021002 follows the YYYYMMDDnn convention (2026-02-10).

warn

Not signed

info

7 records at the apex

Type	Value	TTL
SOA	ns01.1blu.de. hostmaster.1blu.de. 2026021002 43200 5400 604800 300	14400
NS	ns02.1blu.de.	86400
NS	ns01.1blu.de.	86400
A	178.254.10.141	300
MX	10 mail.harryreichert.de.	86400
TXT	"v=spf1 mx include:_spf.1blu.de ~all"	3600
TXT	"google-site-verification=3BjarKK-a2uEiYjo-n-OjYQst7XYSKr44q4_K2pIDo0"	14400