gesundheit.de

Checked 21 October 2026, 22:40 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

alec.ns.cloudflare.com, ivy.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
alec.ns.cloudflare.com, ivy.ns.cloudflare.com
NS in the zone
alec.ns.cloudflare.com, ivy.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
alec.ns.cloudflare.com172.64.33.59 173.245.59.59 108.162.193.59 2606:4700:58::adf5:3b3b 2803:f800:50::6ca2:c13b 2a06:98c1:50::ac40:213bAS13335 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-
ivy.ns.cloudflare.com108.162.192.120 172.64.32.120 173.245.58.120 2606:4700:50::adf5:3a78 2a06:98c1:50::ac40:2078 2803:f800:50::6ca2:c078AS13335 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: alec.ns.cloudflare.com, ivy.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
alec.ns.cloudflare.com 172.64.33.59NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
alec.ns.cloudflare.com 173.245.59.59NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
alec.ns.cloudflare.com 108.162.193.59NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
alec.ns.cloudflare.com 2606:4700:58::adf5:3b3bNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
alec.ns.cloudflare.com 2803:f800:50::6ca2:c13bNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
alec.ns.cloudflare.com 2a06:98c1:50::ac40:213bNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 108.162.192.120NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 172.64.32.120NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 173.245.58.120NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 2606:4700:50::adf5:3a78NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 2a06:98c1:50::ac40:2078NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 2803:f800:50::6ca2:c078NOERROR, 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: alec.ns.cloudflare.com: "2026.10.2"; ivy.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 2417643584 · primary alec.ns.cloudflare.com

Found

Primary (MNAME)
alec.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417643584
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
alec.ns.cloudflare.com (172.64.33.59)2417643584
alec.ns.cloudflare.com (173.245.59.59)2417643584
alec.ns.cloudflare.com (108.162.193.59)2417643584
alec.ns.cloudflare.com (2606:4700:58::adf5:3b3b)2417643584
alec.ns.cloudflare.com (2803:f800:50::6ca2:c13b)2417643584
alec.ns.cloudflare.com (2a06:98c1:50::ac40:213b)2417643584
ivy.ns.cloudflare.com (108.162.192.120)2417643584
ivy.ns.cloudflare.com (172.64.32.120)2417643584
ivy.ns.cloudflare.com (173.245.58.120)2417643584
ivy.ns.cloudflare.com (2606:4700:50::adf5:3a78)2417643584
ivy.ns.cloudflare.com (2a06:98c1:50::ac40:2078)2417643584
ivy.ns.cloudflare.com (2803:f800:50::6ca2:c078)2417643584

Checks

  • ✓ Serial 2417643584 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 alec.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 2417643584 is a Unix timestamp (2046-08-11 23:39 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

16 records at the apex

Found

Read from
172.64.33.59:53
TypeValueTTL
SOAalec.ns.cloudflare.com. dns.cloudflare.com. 2417643584 10000 2400 604800 18001800
NSalec.ns.cloudflare.com.86400
NSivy.ns.cloudflare.com.86400
A172.67.73.119300
A104.26.7.157300
A104.26.6.157300
AAAA2606:4700:20::ac43:4977300
AAAA2606:4700:20::681a:69d300
AAAA2606:4700:20::681a:79d300
MX10 www569.your-server.de.300
TXT"google-site-verification=3tUaNML1mrfPXazmfeZB7Z63Jphv5lD3YONI6P0Vpd0"300
TXT"google-site-verification=4fNV1Byn4fYZqQHb-pejtnCReh9wjZp-kUqRxTA0qMY"300
TXT"google-site-verification=jWNgI0a8FYNVnqJpQ_JNi0cLkWqkn2OwItZPrr1sg5Q"300
TXT"mailer._domainkey TXT \"v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsdqabJTrXx77+cLbiKI3Vya9KL+WBFn5j+FjNUZVhuNDpY6kux/1so2SM54BrrpB8Ziou4gAUznm8eI7ncIwQGJfiyO0aAhSBjZxhBDGCMR/gF+qC6yUYORYwDTJwV8KRohdM/3GaAxdXD3FlnkQVBeF2IDroI" "rVZKrJVYxaYmWHDlPM2qfBSeY0ZYf3Rl32F3sE4DRFCoxkGWbm0Zgn3hl1C1ztpNM8eVsgIdNXxuQjFWsjmHLlvOhT9G+SNbbX9rmLzT4/cQKNZKY8729lO5L3W13K6eB3qHnm/BaNFvAwLwaKdP137Tl/JU+kqS42p0ewa0CL9jaGfDtUItw95QIDAQAB;\""300
TXT"tollbit-domain-verification=a17e2cda7afa3e5de9fd73a87b0d6343497fdbf65ac357ee92fdc3afbaa951f4"300
TXT"v=spf1 mx include:_spf.google.com include:amazonses.com ~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