sunday.de

Checked 22 October 2026, 00:31 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 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

becky.ns.cloudflare.com, gordon.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
becky.ns.cloudflare.com, gordon.ns.cloudflare.com
NS in the zone
becky.ns.cloudflare.com, gordon.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
becky.ns.cloudflare.com108.162.192.73 173.245.58.73 172.64.32.73 2803:f800:50::6ca2:c049 2a06:98c1:50::ac40:2049 2606:4700:50::adf5:3a49AS13335 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-
gordon.ns.cloudflare.com172.64.33.170 173.245.59.170 108.162.193.170 2606:4700:58::adf5:3baa 2803:f800:50::6ca2:c1aa 2a06:98c1:50::ac40:21aaAS13335 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: becky.ns.cloudflare.com, gordon.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
becky.ns.cloudflare.com 108.162.192.73NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
becky.ns.cloudflare.com 173.245.58.73NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
becky.ns.cloudflare.com 172.64.32.73NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
becky.ns.cloudflare.com 2803:f800:50::6ca2:c049NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
becky.ns.cloudflare.com 2a06:98c1:50::ac40:2049NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
becky.ns.cloudflare.com 2606:4700:50::adf5:3a49NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
gordon.ns.cloudflare.com 172.64.33.170NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
gordon.ns.cloudflare.com 173.245.59.170NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
gordon.ns.cloudflare.com 108.162.193.170NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
gordon.ns.cloudflare.com 2606:4700:58::adf5:3baaNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
gordon.ns.cloudflare.com 2803:f800:50::6ca2:c1aaNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
gordon.ns.cloudflare.com 2a06:98c1:50::ac40:21aaNOERROR, 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: becky.ns.cloudflare.com: "2026.10.2"; gordon.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 2417909107 · primary becky.ns.cloudflare.com

Found

Primary (MNAME)
becky.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417909107
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
becky.ns.cloudflare.com (108.162.192.73)2417909107
becky.ns.cloudflare.com (173.245.58.73)2417909107
becky.ns.cloudflare.com (172.64.32.73)2417909107
becky.ns.cloudflare.com (2803:f800:50::6ca2:c049)2417909107
becky.ns.cloudflare.com (2a06:98c1:50::ac40:2049)2417909107
becky.ns.cloudflare.com (2606:4700:50::adf5:3a49)2417909107
gordon.ns.cloudflare.com (172.64.33.170)2417909107
gordon.ns.cloudflare.com (173.245.59.170)2417909107
gordon.ns.cloudflare.com (108.162.193.170)2417909107
gordon.ns.cloudflare.com (2606:4700:58::adf5:3baa)2417909107
gordon.ns.cloudflare.com (2803:f800:50::6ca2:c1aa)2417909107
gordon.ns.cloudflare.com (2a06:98c1:50::ac40:21aa)2417909107

Checks

  • ✓ Serial 2417909107 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 becky.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 2417909107 is a Unix timestamp (2046-08-15 01:25 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

info

29 records at the apex

Found

Read from
108.162.192.73:53
TypeValueTTL
SOAbecky.ns.cloudflare.com. dns.cloudflare.com. 2417909107 10000 2400 604800 18001800
NSbecky.ns.cloudflare.com.86400
NSgordon.ns.cloudflare.com.86400
A172.66.155.230300
A104.20.25.134300
AAAA2606:4700:10::ac42:9be6300
AAAA2606:4700:10::6814:1986300
MX1 aspmx.l.google.com.300
MX10 alt3.aspmx.l.google.com.300
MX10 alt4.aspmx.l.google.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"16dcba7b9e8303fa5e3e05d8fc152ebde916a1fd7e9198d32a7ab0639485a972"300
TXT"1password-site-verification=F37DFL3QWRA7BESARS3MGC2KOQ"300
TXT"MS=7E0F820874E7ED664E299BAE6F9633ED2054025F"300
TXT"MS=ms19037587"300
TXT"anthropic-domain-verification-hs2pm1=a6kJC3oOD7aRD7Ps6hi10Gw79"300
TXT"apple-domain-verification=HwDTcygsYsgi5Fuc"300
TXT"atlassian-domain-verification=kSBzhayafh8eABPRBc0BUDnBHmFZfBTI6jjLq9G7YY2ceta4zaoFN9XIrP4Qnw7j"300
TXT"atlassian-sending-domain-verification=e0807b1a-2190-4f5b-a406-c05b51fc31d5"300
TXT"brevo-code:cb10141b26be1e389ba5ef30272ccace"300
TXT"d5c41b70302e5715b515fa8e64207820ee9991b9c4a16e095e485ec5892dd2e3"300
TXT"facebook-domain-verification=q5ey2a2hbgy0dpl82zzormccbodr8k"300
TXT"google-site-verification: google0d8446cb0db1660b.html"300
TXT"google-site-verification=2IEGKml3z5UBhsdFXnXL_vPsYVHTz1ZOQeaXsQKXP9o"300
TXT"google-site-verification=VSdt6QjEjA0jWGTxtA0qUW0RCNjJP1LyoN4kgBbGI-M"300
TXT"miro-verification=f12e7e13a1be893a314ec3fc4a3dbdac5034d209"300
TXT"protonmail-verification=ac3e03e0e615a08ef8e9382cec297a72552700c9"300
TXT"v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:t.sunday-natural.com ip4:85.13.156.222 include:_spf.atlassian.net -all"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.
  • 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