yourfirm.de

Checked 22 October 2026, 01:10 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 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

elliot.ns.cloudflare.com, hera.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
elliot.ns.cloudflare.com, hera.ns.cloudflare.com
NS in the zone
elliot.ns.cloudflare.com, hera.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
elliot.ns.cloudflare.com173.245.59.162 108.162.193.162 172.64.33.162 2803:f800:50::6ca2:c1a2 2606:4700:58::adf5:3ba2 2a06:98c1:50::ac40:21a2AS13335 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-
hera.ns.cloudflare.com172.64.32.162 173.245.58.162 108.162.192.162 2606:4700:50::adf5:3aa2 2803:f800:50::6ca2:c0a2 2a06:98c1:50::ac40:20a2AS13335 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: elliot.ns.cloudflare.com, hera.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
elliot.ns.cloudflare.com 173.245.59.162NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
elliot.ns.cloudflare.com 108.162.193.162NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
elliot.ns.cloudflare.com 172.64.33.162NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
elliot.ns.cloudflare.com 2803:f800:50::6ca2:c1a2NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
elliot.ns.cloudflare.com 2606:4700:58::adf5:3ba2NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
elliot.ns.cloudflare.com 2a06:98c1:50::ac40:21a2NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
hera.ns.cloudflare.com 172.64.32.162NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
hera.ns.cloudflare.com 173.245.58.162NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
hera.ns.cloudflare.com 108.162.192.162NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
hera.ns.cloudflare.com 2606:4700:50::adf5:3aa2NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
hera.ns.cloudflare.com 2803:f800:50::6ca2:c0a2NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
hera.ns.cloudflare.com 2a06:98c1:50::ac40:20a2NOERROR, 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: elliot.ns.cloudflare.com: "2026.10.2"; hera.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 2417621881 · primary elliot.ns.cloudflare.com

Found

Primary (MNAME)
elliot.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417621881
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
elliot.ns.cloudflare.com (173.245.59.162)2417621881
elliot.ns.cloudflare.com (108.162.193.162)2417621881
elliot.ns.cloudflare.com (172.64.33.162)2417621881
elliot.ns.cloudflare.com (2803:f800:50::6ca2:c1a2)2417621881
elliot.ns.cloudflare.com (2606:4700:58::adf5:3ba2)2417621881
elliot.ns.cloudflare.com (2a06:98c1:50::ac40:21a2)2417621881
hera.ns.cloudflare.com (172.64.32.162)2417621881
hera.ns.cloudflare.com (173.245.58.162)2417621881
hera.ns.cloudflare.com (108.162.192.162)2417621881
hera.ns.cloudflare.com (2606:4700:50::adf5:3aa2)2417621881
hera.ns.cloudflare.com (2803:f800:50::6ca2:c0a2)2417621881
hera.ns.cloudflare.com (2a06:98c1:50::ac40:20a2)2417621881

Checks

  • ✓ Serial 2417621881 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 elliot.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 2417621881 is a Unix timestamp (2046-08-11 17:38 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 413E190CC966EDB0…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 2026-10-21 00:10 UTC and expires at 2026-10-23 02:10 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

pass

33 records at the apex

Found

Read from
173.245.59.162:53
TypeValueTTL
SOAelliot.ns.cloudflare.com. dns.cloudflare.com. 2417621881 10000 2400 604800 18001800
NSelliot.ns.cloudflare.com.86400
NShera.ns.cloudflare.com.86400
A104.18.31.64300
A104.18.30.64300
AAAA2606:4700::6812:1e40300
AAAA2606:4700::6812:1f40300
MX0 yourfirm-de.mail.protection.outlook.com.300
TXT"MS=ms36632446"300
TXT"atlassian-domain-verification=2qcSHq3NY9zKe7lAOyOKQs1dk3antT8tPlmeQYObpASn5UP6ejlxJjY518wMihw7"300
TXT"brevo-code:8585e636553abb73c6b5b73aa27da1c5"300
TXT"facebook-domain-verification=w5t1eiqs8qz6e0e73uhtmi2kl49lw3"300
TXT"google-site-verification=J96eEORumVd5evI7v8Vo4gUD79Hox3fkYirQNxsj038"300
TXT"google-site-verification=Qaqqgu__fz6COkxKOdSQgCExlj6wYBDllyZVsM3o_bA"300
TXT"google-site-verification=wQtNNuww_XYEqN4FqJ3eJuuBcDtS4A0vdz9M7GBYSFI"300
TXT"google-site-verification=ykK-9y8I88wGq9dNH595HZ9wtnHQy10CjA9NJ0cImeI"300
TXT"mgverify=0df1f26e67e07fbb2fea7e21dc35c9617835f60544d3a32fe718f2518ac951d0"300
TXT"miro-verification=bc2747a7b6ff93a60bfac42bcd253fd92f37786d"300
TXT"pardot1100573=779790f1d9340c2d4fc55f5c1887b21728228394e2a915b6aeb55111263ee8bb"300
TXT"sending_domain1100573=b23b8b96dab980a55552a99e35f6bd34aaa8ed4ccde701132b88f834a3573b5d"300
TXT"v=spf1 ip4:46.4.96.84 ip4:80.155.3.40/32 include:sendgrid.net include:spf.protection.outlook.com include:_spf.salesforce.com include:_spf.eu.mailgun.org include:spf.smtp.net include:aspmx.pardot.com ~all"300
CAA0 issue "amazon.com; cansignhttpexchanges=yes"300
CAA0 issue "comodoca.com"300
CAA0 issue "digicert.com; cansignhttpexchanges=yes"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issue "ssl.com"300
CAA0 issuewild "amazon.com; cansignhttpexchanges=yes"300
CAA0 issuewild "comodoca.com"300
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"300
CAA0 issuewild "letsencrypt.org"300
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "ssl.com"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazon.com, comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.