Domain report: vkb.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

info

ns2.xc-ns.de, ns5.xc-ns.de

Nameserver	Addresses	Network (AS)	Glue
ns2.xc-ns.de	193.227.117.225 2a04:2b00:14cc::225	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	193.227.117.225 2a04:2b00:14cc::225
ns5.xc-ns.de	194.50.187.225 2a04:2b00:14dd::225	AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT	194.50.187.225 2a04:2b00:14dd::225

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns2.xc-ns.de, ns5.xc-ns.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.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 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
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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

fail

2 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns2.xc-ns.de 193.227.117.225	NOERROR, 6 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns2.xc-ns.de 2a04:2b00:14cc::225	NOERROR, 4 ms, authoritative	no	yes / yes	refused	RcodeZero DNS
ns5.xc-ns.de 194.50.187.225	no response	no	no / no	-	-
ns5.xc-ns.de 2a04:2b00:14dd::225	no response	no	no / no	-	-

✗

Nameservers not responding

These addresses did not answer, so resolvers waste time on timeouts: ns5.xc-ns.de (194.50.187.225): read udp 46.225.38.91:48285->194.50.187.225:53: i/o timeout; ns5.xc-ns.de (2a04:2b00:14dd::225): read udp [2a01:4f8:1c1c:eebf::1]:53939->[2a04:2b00:14dd::225]:53: i/o timeout.

#14
✓ 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: ns2.xc-ns.de: "RcodeZero DNS".

#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 2026101601 · primary ns2.xc-ns.de

Nameserver	Serial
ns2.xc-ns.de (193.227.117.225)	2026101601
ns2.xc-ns.de (2a04:2b00:14cc::225)	2026101601

✓ Serial 2026101601 everywhere #22

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

SOA refresh 3h, retry 30m, expire 14d, negative TTL 5m.
✓ Primary is a public nameserver #24

The primary nameserver ns2.xc-ns.de is one of the listed nameservers.
✓ Contact domainservice@indeca.de #25

The SOA RNAME domainservice.indeca.de means domainservice@indeca.de.
✓ Date-based serial #26

The serial 2026101601 follows the YYYYMMDDnn convention (2026-10-16).

warn

Not signed

warn

14 records at the apex

Type	Value	TTL
SOA	ns2.xc-ns.de. domainservice.indeca.de. 2026101601 10800 1800 1209600 300	3600
NS	ns2.xc-ns.de.	3600
NS	ns5.xc-ns.de.	3600
A	212.34.89.134	3600
MX	30 mailin1.vkb.de.	163
MX	50 mailin2.vkb.de.	163
TXT	"apple-domain-verification=oK4a0ixF0wWf5Uqf"	3600
TXT	"google-gws-recovery-domain-verification=46710027"	3600
TXT	"facebook-domain-verification=q06ruu6kq2yz5u6jafoviheeaayb9e"	3600
TXT	"onetrust-domain-verification=9d283f40e8b54bc0991524293d29cbba"	3600
TXT	"google-site-verification=2jYC3sdxz8lVfk-Wfu4S_SgyPascpX_JcTRa4urEH1w"	3600
TXT	"google-site-verification=q_H9ER5Xi2ag7bTnYMfGKA1vWWu8kO_6Ux0mJGeRIGo"	3600
TXT	"cisco-ci-domain-verification=4aad3825e1d7555658d9ce5538d2b1416ff5797e879c7fc940093944d24a755a"	3600
TXT	"v=spf1 ip4:62.245.172.0/26 ip4:80.243.45.222/32 ip4:185.157.29.16/28 include:_spf.oevcloud.de include:spf.protection.outlook.com ~all"	3600