karriere.de

Checked 21 October 2026, 23:02 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 warnings 0 failed 6 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

aida.ns.cloudflare.com, walt.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
aida.ns.cloudflare.com, walt.ns.cloudflare.com
NS in the zone
aida.ns.cloudflare.com, walt.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
aida.ns.cloudflare.com173.245.58.58 108.162.192.58 172.64.32.58 2606:4700:50::adf5:3a3a 2a06:98c1:50::ac40:203a 2803:f800:50::6ca2:c03aAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
walt.ns.cloudflare.com173.245.59.148 172.64.33.148 108.162.193.148 2a06:98c1:50::ac40:2194 2803:f800:50::6ca2:c194 2606:4700:58::adf5:3b94AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: aida.ns.cloudflare.com, walt.ns.cloudflare.com.
    #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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .com
    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

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
aida.ns.cloudflare.com 173.245.58.58NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
aida.ns.cloudflare.com 108.162.192.58NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
aida.ns.cloudflare.com 172.64.32.58NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
aida.ns.cloudflare.com 2606:4700:50::adf5:3a3aNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
aida.ns.cloudflare.com 2a06:98c1:50::ac40:203aNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
aida.ns.cloudflare.com 2803:f800:50::6ca2:c03aNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
walt.ns.cloudflare.com 173.245.59.148NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
walt.ns.cloudflare.com 172.64.33.148NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
walt.ns.cloudflare.com 108.162.193.148NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
walt.ns.cloudflare.com 2a06:98c1:50::ac40:2194NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
walt.ns.cloudflare.com 2803:f800:50::6ca2:c194NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
walt.ns.cloudflare.com 2606:4700:58::adf5:3b94NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 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: aida.ns.cloudflare.com: "2026.10.2"; walt.ns.cloudflare.com: "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 2414711206 · primary aida.ns.cloudflare.com

Found

Primary (MNAME)
aida.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2414711206
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
aida.ns.cloudflare.com (173.245.58.58)2414711206
aida.ns.cloudflare.com (108.162.192.58)2414711206
aida.ns.cloudflare.com (172.64.32.58)2414711206
aida.ns.cloudflare.com (2606:4700:50::adf5:3a3a)2414711206
aida.ns.cloudflare.com (2a06:98c1:50::ac40:203a)2414711206
aida.ns.cloudflare.com (2803:f800:50::6ca2:c03a)2414711206
walt.ns.cloudflare.com (173.245.59.148)2414711206
walt.ns.cloudflare.com (172.64.33.148)2414711206
walt.ns.cloudflare.com (108.162.193.148)2414711206
walt.ns.cloudflare.com (2a06:98c1:50::ac40:2194)2414711206
walt.ns.cloudflare.com (2803:f800:50::6ca2:c194)2414711206
walt.ns.cloudflare.com (2606:4700:58::adf5:3b94)2414711206

Checks

  • ✓ Serial 2414711206 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 aida.ns.cloudflare.com 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 2414711206 is a Unix timestamp (2046-07-09 01:06 UTC).

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

12 records at the apex

Found

Read from
173.245.58.58:53
TypeValueTTL
SOAaida.ns.cloudflare.com. dns.cloudflare.com. 2414711206 10000 2400 604800 18001800
NSaida.ns.cloudflare.com.86400
NSwalt.ns.cloudflare.com.86400
A141.193.213.1160
A141.193.213.1060
MX10 mail.karriere.de.86400
TXT"MS=ms30695747"120
TXT"ms30695747.msv1.invalid"120
TXT"v=DKIM1; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAokwwQgkMzQ4e3Ov1CGE0xVfecRkb0Xz0qu9EVUPEdmvoe1ciV1RfU+DMlrIM8GyfNiGoTTRl+wudYWhksOkptMJMlQehz6R1EbZEHQH6Ti3Ylfced9KHy+GB//ylY6zXEgl4dnVnLDru\"\"JqNrrK6tGKfx6T2Knwq3eWsMN1HF6KUimZAeFYTPcGXGeThL7wzYB" "HXCF6KQqnZonAIreTsHEH349NNMdetbTN8YnL7KuqpNxhbwxEbn5lcFjA6++aCJtX6CriihM4B/enHYkBS4jomC//OHbXgUG+eqtSRI4ZUr+KxWtdNkJucRB4tt4VcJ32X100IlJ+c2GGwzA8pZ\"\"yQIDAQA"120
TXT"v=DMARC1; p=none;"120
TXT"v=spf1 a mx a:host28.hot-server.com ip4:188.34.178.242 ip6:2a01:4f8:c010:a0a8::1 -all"120
TXT"v=spf1 ip4:13.81.10.179 ip4:13.93.227.154 ip4:23.96.254.246 ip4:23.101.48.181 ip4:23.101.59.148 ip4:23.103.128.0/19 ip4:23.103.191.0/24 ip4:23.103.198.0/23 ip4:23.103.200.0/21 ip4:23.103.208.0/21 ip4:34.253.148.88 ip4:40.86.231.206 ip4:40.92.0.0/15 ip4:40" ".107.0.0/16 ip4:40.126.245.16 ip4:51.140.24.80 ip4:52.100.0.0/14 ip4:52.138.192.106 ip4:52.232.131.215 ip4:52.236.92.113 ip4:54.240.0.0/18 ip4:64.4.22.64/26 ip4:65.52.56.186 ip4:65.55.88.0/24 ip4:65.55.169.0/24 include:spf1.karriere.de -all"120

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #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