sos-kinderdoerfer.de

Checked 22 October 2026, 00:23 UTC · via 8.8.8.8
!Passed with warnings
20 passed 2 warnings 0 failed 7 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

warn

ns1.netrics.ch, ns2.netrics.ch

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.netrics.ch, ns2.netrics.ch
NS in the zone
ns1.netrics.ch, ns2.netrics.ch
NameserverAddressesNetwork (AS)Glue
ns1.netrics.ch81.18.20.245AS50785 AS-NETRICS - Netrics AG, CH-
ns2.netrics.ch81.18.22.245AS50785 AS-NETRICS - Netrics AG, CH-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.netrics.ch, ns2.netrics.ch.
    #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 2 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS50785 (AS-NETRICS - Netrics AG, CH): 2 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 .ch
    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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.netrics.ch 81.18.20.245NOERROR, 13 ms, authoritativenoyes / yesrefusednetrics AG
ns2.netrics.ch 81.18.22.245NOERROR, 12 ms, authoritativenoyes / yesrefusednetrics AG

Checks

  • ✓ All respond #14
    All 2 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.netrics.ch: "netrics AG"; ns2.netrics.ch: "netrics AG".
    #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 2026071403 · primary ns1.netrics.ch

Found

Primary (MNAME)
ns1.netrics.ch
Contact (RNAME)
hostmaster.netrics.ch
Serial
2026071403
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.netrics.ch (81.18.20.245)2026071403
ns2.netrics.ch (81.18.22.245)2026071403

Checks

  • ✓ Serial 2026071403 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.netrics.ch is one of the listed nameservers.
  • ✓ Contact hostmaster@netrics.ch #25
    The SOA RNAME hostmaster.netrics.ch means hostmaster@netrics.ch.
  • ✓ Date-based serial #26
    The serial 2026071403 follows the YYYYMMDDnn convention (2026-07-14).

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

10 records at the apex

Found

Read from
81.18.20.245:53
TypeValueTTL
SOAns1.netrics.ch. hostmaster.netrics.ch. 2026071403 10800 3600 604800 86400300
NSns2.netrics.ch.300
NSns1.netrics.ch.300
A81.18.22.53300
MX10 soskinderdoerfer-de0i.mail.protection.outlook.com.300
TXT"MS=ms37438603"300
TXT"MS=ms68470374"300
TXT"v=spf1 include:spf1.sos-kinderdoerfer.de include:spf2.sos-kinderdoerfer.de include:_spf.rexx-suite.com ~all"300
TXT"facebook-domain-verification=lbnl5ybpkz37ow7jp0al4neirobwy7"300
TXT"k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwrhj/dXHQmZkKal0MBmkiiXWj0K5Mo0aem1oa0byXireYytoQqWDYr5SUusUURVd2QDFkPeOe8W0EMbmD8OyyCBbnxFkmCj2g0yoeQhnqYcsCasAOjeodvOls6U6R15409wAJ56tITPnAEx341C8PuoJUQRl/Yl0MEj7PLVPMrwIDAQAB"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1d and in the zone 5m; resolvers may use either.
  • ✓ 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