remscheid.de

Checked 22 October 2026, 00:00 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 8 info

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

info

cloud-ns1.remscheid.de, cloud-ns2.remscheid.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
cloud-ns1.remscheid.de, cloud-ns2.remscheid.de
NS in the zone
cloud-ns1.remscheid.de, cloud-ns2.remscheid.de
NameserverAddressesNetwork (AS)Glue
cloud-ns1.remscheid.de162.159.9.160 2400:cb00:2049:1::a29f:9a0AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.9.160 2400:cb00:2049:1::a29f:9a0
cloud-ns2.remscheid.de162.159.10.181 2400:cb00:2049:1::a29f:ab5AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.10.181 2400:cb00:2049:1::a29f:ab5

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: cloud-ns1.remscheid.de, cloud-ns2.remscheid.de.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: cloud-ns1.remscheid.de, cloud-ns2.remscheid.de.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2400:cb00:2049::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 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.

Nameservers

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
cloud-ns1.remscheid.de 162.159.9.160NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
cloud-ns1.remscheid.de 2400:cb00:2049:1::a29f:9a0NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
cloud-ns2.remscheid.de 162.159.10.181NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
cloud-ns2.remscheid.de 2400:cb00:2049:1::a29f:ab5NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: cloud-ns1.remscheid.de: "2026.10.2"; cloud-ns2.remscheid.de: "2026.10.2". 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.

SOA

pass

serial 2418078286 · primary cloud-ns1.remscheid.de

Found

Primary (MNAME)
cloud-ns1.remscheid.de
Contact (RNAME)
dns.cloudflare.com
Serial
2418078286
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
cloud-ns1.remscheid.de (162.159.9.160)2418078286
cloud-ns1.remscheid.de (2400:cb00:2049:1::a29f:9a0)2418078286
cloud-ns2.remscheid.de (162.159.10.181)2418078286
cloud-ns2.remscheid.de (2400:cb00:2049:1::a29f:ab5)2418078286

Checks

  • ✓ Serial 2418078286 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver cloud-ns1.remscheid.de is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2418078286 is a Unix timestamp (2046-08-17 00:24 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 03B033E9FD91D3ED…yes

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 2371 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-20 23:00 UTC and expires at 2026-10-23 01:00 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

12 records at the apex

Found

Read from
162.159.9.160:53
TypeValueTTL
SOAcloud-ns1.remscheid.de. dns.cloudflare.com. 2418078286 10000 2400 604800 18001800
NScloud-ns1.remscheid.de.86400
NScloud-ns2.remscheid.de.86400
A104.20.23.71300
A172.66.163.161300
AAAA2606:4700:10::6814:1747300
AAAA2606:4700:10::ac42:a3a1300
MX10 mail1.wuppertal.de.3600
MX10 mail2.wuppertal.de.3600
TXT"google-site-verification=zB7x7UbM2cOOoJmRkrwXR9fJ4pvpQmNEDgqET_tYanE"300
TXT"swisssign-check=gsS-x-nICRZIKZ_2df_v-NIvKRs"300
TXT"v=spf1 include:_spf.wuppertal.de include:spf.regioit.de -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 1h, NS 1d.
  • ✓ 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