Domain report: gladbeck.de

Registration

info

.de country-code

Found

TLD: .de (country-code)
ICANN policies apply: no

Checks

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

Delegation

pass

ns.inwx.de, ns2.inwx.de, ns3.inwx.eu

Found

Parent zone: de
Delegation from: a.nic.de (194.0.0.53)
NS at the parent: ns.inwx.de, ns2.inwx.de, ns3.inwx.eu
NS in the zone: ns.inwx.de, ns2.inwx.de, ns3.inwx.eu

Nameserver	Addresses	Network (AS)	Glue
ns.inwx.de	192.174.68.104 2001:67c:1bc::104	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	-
ns2.inwx.de	176.97.158.104 2001:67c:10b8::104	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	-
ns3.inwx.eu	45.87.158.53 2a02:d500::53	AS48596 INWX - InterNetworX Management GmbH, DE AS48596 INWX - InterNetworX Management GmbH, DE	-

Checks

✓ 3 nameservers #6

Delegated to ns.inwx.de, ns2.inwx.de, ns3.inwx.eu.
✓ 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 3 IPv4 /24s and 3 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses; AS48596 (INWX - InterNetworX Management GmbH, DE): 2 addresses.
✓ Nameserver names under 2 TLDs #12

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

Every nameserver has an IPv6 address.

Nameservers

info

6 of 6 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.inwx.de 192.174.68.104	NOERROR, 4 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns.inwx.de 2001:67c:1bc::104	NOERROR, 5 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns2.inwx.de 176.97.158.104	NOERROR, 13 ms, authoritative	no	yes / yes	refused	reg-wie1
ns2.inwx.de 2001:67c:10b8::104	NOERROR, 14 ms, authoritative	no	yes / yes	refused	reg-wie1
ns3.inwx.eu 45.87.158.53	NOERROR, 12 ms, authoritative	no	yes / yes	refused	INWX AXFR Server
ns3.inwx.eu 2a02:d500::53	NOERROR, 12 ms, authoritative	no	yes / yes	refused	INWX AXFR Server

Checks

✓ All respond #14

All 6 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns.inwx.de: "RcodeZero DNS"; ns2.inwx.de: "reg-wie1"; ns3.inwx.eu: "INWX AXFR Server".

#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.

SOA

info

serial 2026100601 · primary dns1.gkd-re.net

Found

Primary (MNAME): dns1.gkd-re.net
Contact (RNAME): internetservice.gkd-re.de
Serial: 2026100601
Refresh / retry: 36000 s / 10800 s
Expire: 2592000 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
ns.inwx.de (192.174.68.104)	2026100601
ns.inwx.de (2001:67c:1bc::104)	2026100601
ns2.inwx.de (176.97.158.104)	2026100601
ns2.inwx.de (2001:67c:10b8::104)	2026100601
ns3.inwx.eu (45.87.158.53)	2026100601
ns3.inwx.eu (2a02:d500::53)	2026100601

Checks

✓ Serial 2026100601 everywhere #22

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

SOA refresh 10h, retry 3h, expire 30d, negative TTL 1d.
i

Hidden master

The primary nameserver dns1.gkd-re.net 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 internetservice@gkd-re.de #25

The SOA RNAME internetservice.gkd-re.de means internetservice@gkd-re.de.
✓ Date-based serial #26

The serial 2026100601 follows the YYYYMMDDnn convention (2026-10-06).

DNSSEC

warn

Not signed

Found

Validated by resolver: no

Checks

!

Not signed

The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

#27

Records

warn

35 records at the apex

Found

Read from: 192.174.68.104:53

Type	Value	TTL
SOA	dns1.gkd-re.net. internetservice.gkd-re.de. 2026100601 36000 10800 2592000 86400	21600
NS	ns.inwx.de.	21600
NS	ns2.inwx.de.	21600
NS	ns3.inwx.eu.	21600
A	91.102.137.190	60
MX	10 mx01.gkd-re.net.	60
MX	10 mx02.gkd-re.net.	60
TXT	"KST:435505"	60
TXT	"MS=ms28438802"	60
TXT	"9j9xc35cp5v32mqnxx8jl27mn43jnlks"	60
TXT	"9kkgtx3kt529v3l4kdz6cbsssd59hvtw"	60
TXT	"_2vl9aqwng454xtglj3kx2c448kt8m1j"	60
TXT	"_4aehamrekrd6acah2g9svo7ratjw54i"	60
TXT	"_6cdnoc61mm05m36zv1awmtbahkw6ro9"	60
TXT	"_7wklxjhfw787wpzry0aynzbxuhsy4lp"	60
TXT	"_gu4jzj58vqwei5ylos4f659m8wc1u38"	60
TXT	"_ib4pmn7hn4zahp8rn9eiwacudoqt4ra"	60
TXT	"_krwoj8c8csv2eyl3kmnimkdcixossds"	60
TXT	"_lp356zw9qpemi9ecbz528db9go51s2m"	60
TXT	"_nretm79i4ay6ow10p20agt2ughmgtuo"	60
TXT	"_qujjw5r1ztu18682dzcxkalv7549bo5"	60
TXT	"_rah6d7xuot10j1w7t60ok1qoulcyepx"	60
TXT	"_t7zh5dyv910i985qf1ol4gj75z8jsoy"	60
TXT	"_xxkkgkhyi2ns261uuh4xdkxamkouu5r"	60
TXT	"_zfku8x8glnxbl3i569ble84bt1wnhas"	60
TXT	"rcw8yc3w8xjwm0lkh0kqrp5phv0vj22w"	60
TXT	"brevo-code:dafbc7f80ea8ce9eecce2e18e6df9d92"	60
TXT	"v=spf1 ip4:194.31.16.0/20 ip6:2a02:100e:6b80::/48 ~all"	60
TXT	"202011292007551uenml6xkz6e2i58rg6jsyz8sfw14hlzjkfngqtpxsufvsgtoq"	60
TXT	"202108311800002hm1x1rnjm0w6ctgclis3qw1mazj59qnc0c8i201mmz1dq6vbj"	60
TXT	"202110262343501yjz78s741ephbnl048k7gkdcljzmr469g4o28uj98vk51kpca"	60
TXT	"2021102700141704g0vkit8fufg1fewfyrshp1mttno7tl27ce9kyh8qa1zmf4b7"	60
TXT	"2021102700352449fytslakeks7l02ey0ak7l20t3k4i1i8s1oeee5u4q3lucqr4"	60
TXT	"202111222049260eokbwg4gy3rgnhhvnrb8djjv0e6dntqov95q06lrbfvedujh8"	60
TXT	"google-site-verification=uFDZ5cigH2dcz4SbJpP1-JiTmCvDlPiYImSiqhTr1Rs"	60

Checks

!

Very low TTLs

These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 6h; resolvers may use either.

#32
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
i

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