berlinerbaeder.de

Checked 21 October 2026, 21:38 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

brodie.ns.cloudflare.com, teresa.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
brodie.ns.cloudflare.com, teresa.ns.cloudflare.com
NS in the zone
brodie.ns.cloudflare.com, teresa.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
brodie.ns.cloudflare.com172.64.35.237 108.162.195.237 162.159.44.237 2a06:98c1:50::ac40:23ed 2606:4700:58::a29f:2ced 2803:f800:50::6ca2:c3edAS13335 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-
teresa.ns.cloudflare.com172.64.34.216 108.162.194.216 162.159.38.216 2803:f800:50::6ca2:c2d8 2a06:98c1:50::ac40:22d8 2606:4700:50::a29f:26d8AS13335 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: brodie.ns.cloudflare.com, teresa.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
brodie.ns.cloudflare.com 172.64.35.237NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
brodie.ns.cloudflare.com 108.162.195.237NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
brodie.ns.cloudflare.com 162.159.44.237NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
brodie.ns.cloudflare.com 2a06:98c1:50::ac40:23edNOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
brodie.ns.cloudflare.com 2606:4700:58::a29f:2cedNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
brodie.ns.cloudflare.com 2803:f800:50::6ca2:c3edNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
teresa.ns.cloudflare.com 172.64.34.216NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
teresa.ns.cloudflare.com 108.162.194.216NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
teresa.ns.cloudflare.com 162.159.38.216NOERROR, 33 ms, authoritativenoyes / yesrefused2026.10.2
teresa.ns.cloudflare.com 2803:f800:50::6ca2:c2d8NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
teresa.ns.cloudflare.com 2a06:98c1:50::ac40:22d8NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
teresa.ns.cloudflare.com 2606:4700:50::a29f:26d8NOERROR, 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: brodie.ns.cloudflare.com: "2026.10.2"; teresa.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 2418089356 · primary brodie.ns.cloudflare.com

Found

Primary (MNAME)
brodie.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418089356
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
brodie.ns.cloudflare.com (172.64.35.237)2418089356
brodie.ns.cloudflare.com (108.162.195.237)2418089356
brodie.ns.cloudflare.com (162.159.44.237)2418089356
brodie.ns.cloudflare.com (2a06:98c1:50::ac40:23ed)2418089356
brodie.ns.cloudflare.com (2606:4700:58::a29f:2ced)2418089356
brodie.ns.cloudflare.com (2803:f800:50::6ca2:c3ed)2418089356
teresa.ns.cloudflare.com (172.64.34.216)2418089356
teresa.ns.cloudflare.com (108.162.194.216)2418089356
teresa.ns.cloudflare.com (162.159.38.216)2418089356
teresa.ns.cloudflare.com (2803:f800:50::6ca2:c2d8)2418089356
teresa.ns.cloudflare.com (2a06:98c1:50::ac40:22d8)2418089356
teresa.ns.cloudflare.com (2606:4700:50::a29f:26d8)2418089356

Checks

  • ✓ Serial 2418089356 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 brodie.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 2418089356 is a Unix timestamp (2046-08-17 03:29 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

13 records at the apex

Found

Read from
172.64.35.237:53
TypeValueTTL
SOAbrodie.ns.cloudflare.com. dns.cloudflare.com. 2418089356 10000 2400 604800 18001800
NSbrodie.ns.cloudflare.com.86400
NSteresa.ns.cloudflare.com.86400
A116.202.183.223300
MX110 mail.berlinerbaeder.de.60
TXT"MS=ms72386031"300
TXT"_telesec-domain-validation=352445_2026-08-12_uAvEqIOV3sappP02juCiZhkEyPTuJTr44DyPC6aL2n9KPLIzkU"300
TXT"apple-domain-verification=15VlaFczMuOg5kyN"300
TXT"facebook-domain-verification=zc2v48rapev3ergd7j8xy13db37tse"300
TXT"google-site-verification=D-yq3_AzSHysQGIblpcpi_hDhkEKstqaVeFF_pntuEU"300
TXT"h0Q5Jqnx/8miSG9Plg8kH7YicXCKdF+DZ7tZ1qa7hsJoQnjCCuxHCNHGAyb/6mgUTuNYvsfPm4RoK04K/dlvrw=="300
TXT"v=spf1 a mx ip4:93.189.27.120 ip4:93.189.27.121 ip4:93.189.27.122 ip4:93.189.27.123 ip4:10.27.7.123 ip4:49.12.229.5 ip4:93.189.27.118 include:spf.topdesk.net include:spf.protection.outlook.com include:spf.de.umantis.com include:_spf.pretix.eu ~all"300
TXT"yfPbGwtcaJEfcn4160Ejhs74p2vatZlJs/yLqXnOusw55f0RHAROoCqQ48KtZW8ga9OAXGdpJJ/5F4OM4Wo20g=="300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: MX (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