Domain report: vdivde-it.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

pns.dtag.de, secondary006.dtag.net

Nameserver	Addresses	Network (AS)	Glue
pns.dtag.de	194.25.0.125 2003:40:8000::100	AS3320 DTAG - Deutsche Telekom AG, DE AS3320 DTAG - Deutsche Telekom AG, DE	194.25.0.125 2003:40:8000::100
secondary006.dtag.net	195.244.245.25 2a00:fa8:3:0:100:0:6:1	AS5605 NETUSE - NetUSE AG, DE AS5605 NETUSE - NetUSE AG, DE	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: pns.dtag.de, secondary006.dtag.net.

#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.
✓ 2 autonomous systems #11

The nameservers are spread over: AS3320 (DTAG - Deutsche Telekom AG, DE): 2 addresses; AS5605 (NETUSE - NetUSE AG, DE): 2 addresses.
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .de, .net.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

info

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
pns.dtag.de 194.25.0.125	NOERROR, 10 ms, authoritative	no	yes / yes	refused	DomainNameServer
pns.dtag.de 2003:40:8000::100	NOERROR, 7 ms, authoritative	no	yes / yes	refused	DomainNameServer
secondary006.dtag.net 195.244.245.25	NOERROR, 14 ms, authoritative	no	yes / yes	refused	DomainNameServer
secondary006.dtag.net 2a00:fa8:3:0:100:0:6:1	NOERROR, 17 ms, authoritative	no	yes / yes	refused	DomainNameServer

✓ 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.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: pns.dtag.de: "DomainNameServer"; secondary006.dtag.net: "DomainNameServer".

#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.

info

serial 2026092508 · primary ns.vdivde-it.de

✓ Serial 2026092508 everywhere #22

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

SOA refresh 2h46m41s, retry 30m1s, expire 7d, negative TTL 29m58s.
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Hidden master

The primary nameserver ns.vdivde-it.de is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.

#24
✓ Contact postmaster@vdivde-it.de #25

The SOA RNAME postmaster.vdivde-it.de means postmaster@vdivde-it.de.
✓ Date-based serial #26

The serial 2026092508 follows the YYYYMMDDnn convention (2026-09-25).

warn

Not signed

info

17 records at the apex

Type	Value	TTL
SOA	ns.vdivde-it.de. postmaster.vdivde-it.de. 2026092508 10001 1801 604800 1798	600
NS	pns.dtag.de.	600
NS	secondary006.dtag.net.	600
A	178.105.47.39	600
AAAA	2a01:4f8:1c1e:fab7::2	600
MX	10 mail.vdivde-it.de.	600
TXT	"cisco-ci-domain-verification=6130b47a33321c6b16a1f5b62189585dd69ab29f3aeb1f6bfd32655bf403407c"	600
TXT	"openai-domain-verification=dv-SXimbYrusBPLNH9jSwUiSZkj"	600
TXT	"apple-domain-verification=SRasBPp93XNM6ACX"	600
TXT	"_globalsign-domain-verification=18PL1ANe6nl5jBinLsh9KmloyfN0_lkBoVzat58nKN"	600
TXT	"canva-site-verification=MgjMVV1JDD9tmp8gxhoXsg"	600
TXT	"D-TRUST=U7XGZC7V9PSO9XEKSUVNY2X"	600
TXT	"check=2024-11-22"	600
TXT	"v=spf1 a mx ip4:217.89.179.128/27 ip4:212.121.130.208/28 a:er-mail.erecruiter.net include:spf.mailingress.de include:amazonses.com ip4:146.0.39.244 include:rm01.vdivde-it.de ~all"	600
TXT	"mistral-domain-verification=43416f3bc468484550054e6842460ebf6599f83b"	600
TXT	"MS=8D035032CDA58A33214FD6CA33EF8A0ED2BC947A"	600
TXT	"anthropic-domain-verification-azymva=zmTC3XhSbJgDuoswt00hfV93m"	600

✓ TTLs within range #32

TTLs: A 10m, AAAA 10m, MX 10m, NS 10m. The NS TTL at the parent is 1d and in the zone 10m; 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