schwaebisch-gmuend.de

Checked 22 October 2026, 00:02 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

aleena.ns.cloudflare.com, uriah.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
aleena.ns.cloudflare.com, uriah.ns.cloudflare.com
NS in the zone
aleena.ns.cloudflare.com, uriah.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
aleena.ns.cloudflare.com172.64.34.81 162.159.38.81 108.162.194.81 2803:f800:50::6ca2:c251 2a06:98c1:50::ac40:2251 2606:4700:50::a29f:2651AS13335 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-
uriah.ns.cloudflare.com162.159.44.194 108.162.195.194 172.64.35.194 2606:4700:58::a29f:2cc2 2a06:98c1:50::ac40:23c2 2803:f800:50::6ca2:c3c2AS13335 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: aleena.ns.cloudflare.com, uriah.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
aleena.ns.cloudflare.com 172.64.34.81NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
aleena.ns.cloudflare.com 162.159.38.81NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
aleena.ns.cloudflare.com 108.162.194.81NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
aleena.ns.cloudflare.com 2803:f800:50::6ca2:c251NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
aleena.ns.cloudflare.com 2a06:98c1:50::ac40:2251NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
aleena.ns.cloudflare.com 2606:4700:50::a29f:2651NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
uriah.ns.cloudflare.com 162.159.44.194NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
uriah.ns.cloudflare.com 108.162.195.194NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
uriah.ns.cloudflare.com 172.64.35.194NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
uriah.ns.cloudflare.com 2606:4700:58::a29f:2cc2NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
uriah.ns.cloudflare.com 2a06:98c1:50::ac40:23c2NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
uriah.ns.cloudflare.com 2803:f800:50::6ca2:c3c2NOERROR, 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: aleena.ns.cloudflare.com: "2026.10.2"; uriah.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 2416704207 · primary aleena.ns.cloudflare.com

Found

Primary (MNAME)
aleena.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416704207
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
aleena.ns.cloudflare.com (172.64.34.81)2416704207
aleena.ns.cloudflare.com (162.159.38.81)2416704207
aleena.ns.cloudflare.com (108.162.194.81)2416704207
aleena.ns.cloudflare.com (2803:f800:50::6ca2:c251)2416704207
aleena.ns.cloudflare.com (2a06:98c1:50::ac40:2251)2416704207
aleena.ns.cloudflare.com (2606:4700:50::a29f:2651)2416704207
uriah.ns.cloudflare.com (162.159.44.194)2416704207
uriah.ns.cloudflare.com (108.162.195.194)2416704207
uriah.ns.cloudflare.com (172.64.35.194)2416704207
uriah.ns.cloudflare.com (2606:4700:58::a29f:2cc2)2416704207
uriah.ns.cloudflare.com (2a06:98c1:50::ac40:23c2)2416704207
uriah.ns.cloudflare.com (2803:f800:50::6ca2:c3c2)2416704207

Checks

  • ✓ Serial 2416704207 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 aleena.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 2416704207 is a Unix timestamp (2046-08-01 02:43 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

20 records at the apex

Found

Read from
172.64.34.81:53
TypeValueTTL
SOAaleena.ns.cloudflare.com. dns.cloudflare.com. 2416704207 10000 2400 604800 18001800
NSaleena.ns.cloudflare.com.86400
NSuriah.ns.cloudflare.com.86400
A172.67.221.145300
A104.21.25.16300
AAAA2606:4700:3035::ac43:dd91300
AAAA2606:4700:3031::6815:1910300
MX5 mx6.kvnbw.de.300
MX6 mx7.kvnbw.de.300
MX7 mx8.kvnbw.de.300
MX8 mx9.kvnbw.de.300
TXT"992tj81rm73pc9h6sg2013wzrsy7sv0r"300
TXT"MS=FBA5F48FDE9A0D618991AD9E743DF59B9C817A08"300
TXT"MS=ms78445572"300
TXT"apple-domain-verification=xYzqODymVv180CWv"300
TXT"ftapi-domain-verification=3nsen4ZGgR8mwKUJ3uBTVLdZ4ujrnSpM"300
TXT"goodnotes-verification=eea75430-e8c7-47ae-84f1-0ab877dd7fc8"300
TXT"google-site-verification=LqQ8rgNfFYkn1sCDUbbyaLvFGFS7e6f9kFwssxrs59c"300
TXT"h1tr8mr66nvlf0d6k9f6cbv5j3mmsbrj"300
TXT"v=spf1 a mx ip4:78.46.4.219 ip4:31.25.159.178 ip4:46.229.45.31 include:spf.nl2go.com include:_spf.jpberlin.de include:_spf-eu.ionos.com include:spf.protect.kvnbw.de include:spf.brevo.com ip4:91.216.90.0/24 -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