johanniter.de

Checked 21 October 2026, 23:01 UTC · via 8.8.8.8
!Passed with warnings
22 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

ns51.domaincontrol.com, ns52.domaincontrol.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns51.domaincontrol.com, ns52.domaincontrol.com
NS in the zone
ns51.domaincontrol.com, ns52.domaincontrol.com
NameserverAddressesNetwork (AS)Glue
ns51.domaincontrol.com97.74.105.26 2603:5:2192::1aAS44273 GODADDY-DNS - Host Europe GmbH, DE AS44273 GODADDY-DNS - Host Europe GmbH, DE-
ns52.domaincontrol.com173.201.73.26 2603:5:2292::1aAS44273 GODADDY-DNS - Host Europe GmbH, DE AS44273 GODADDY-DNS - Host Europe GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns51.domaincontrol.com, ns52.domaincontrol.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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS44273 (GODADDY-DNS - Host Europe GmbH, DE): 4 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

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns51.domaincontrol.com 97.74.105.26NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns51.domaincontrol.com 2603:5:2192::1aNOERROR, 4 ms, authoritativenoyes / yesrefused-
ns52.domaincontrol.com 173.201.73.26NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns52.domaincontrol.com 2603:5:2292::1aNOERROR, 3 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2026102001 · primary ns51.domaincontrol.com

Found

Primary (MNAME)
ns51.domaincontrol.com
Contact (RNAME)
dns.jomax.net
Serial
2026102001
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns51.domaincontrol.com (97.74.105.26)2026102001
ns51.domaincontrol.com (2603:5:2192::1a)2026102001
ns52.domaincontrol.com (173.201.73.26)2026102001
ns52.domaincontrol.com (2603:5:2292::1a)2026102001

Checks

  • ✓ Serial 2026102001 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns51.domaincontrol.com is one of the listed nameservers.
  • ✓ Contact dns@jomax.net #25
    The SOA RNAME dns.jomax.net means dns@jomax.net.
  • ✓ Date-based serial #26
    The serial 2026102001 follows the YYYYMMDDnn convention (2026-10-20).

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

28 records at the apex

Found

Read from
97.74.105.26:53
TypeValueTTL
SOAns51.domaincontrol.com. dns.jomax.net. 2026102001 28800 7200 604800 6003600
NSns52.domaincontrol.com.3600
NSns51.domaincontrol.com.3600
A138.199.142.613600
AAAA2a01:4f8:2220:2796::23600
MX10 mx2.johanniter.de.3600
MX10 mx1.johanniter.de.3600
TXT"c23665e77931cbb6b30cb82ddf1b75ecdb9ac08e6fe034fb49ea2c73c6cd9b3"3600
TXT"MS=ms80767335"3600
TXT"ZOOM_verify_Rq90oK9M8N9pewb8GLLJa6"3600
TXT"google-site-verification=T_H6aEGeFyqq4IXkDGj48urGd9ugb29jWmA4QbTqG5E"3600
TXT"v=spf1 mx include:spf.nl2go.com include:spfa.myconvento.com include:spf.mailjet.com include:spf.protection.outlook.com include:_spf.zimpel.de ip4:217.6.52.71 -all"3600
TXT"apple-domain-verification=sfDF95LReNJHQwDR"3600
TXT"logmein-verification-code=6cfd6a24-b01f-461e-8ead-cc9ad540a509"3600
TXT"facebook-domain-verification=u9uce1fwrawwmzrw52mibg02ut02lz"3600
TXT"google-site-verification=JioJsqEffQK5do_IY7fHTSnf5mE9Iyiao10OMEVFsZs"3600
TXT"google-site-verification=7Ow6XpuKxVuG2zXW_iyWKkWumDL6sZXBFrg7ZclpkNs"3600
TXT"brevo-code:95b27a05b2f505e736153e608e5812cb"3600
TXT"brevo-code:261d91482ab320d4a6e5952d0faa007d"3600
TXT"google-site-verification=BVqEbzhNPhnnuj3tT3A2rdlvWihw7gl9IgA4rbSWJuI"3600
TXT"trend-micro-v1-domain-verification.b595cbf3850a86518c60aa153dc6f991=5d198365-1cf9-463f-9014-f3dd46b040b2"3600
TXT"pinterest-site-verification=0cf3cf26e4a016e186383d5e0d42fb31"3600
TXT"logmein-verification-code=8aff9a11-088f-43e6-9de6-9803cce5e34f"3600
TXT"MS=ms45535345"3600
TXT"p34eh52isu8s79frklr3j86jfr"3600
TXT"google-site-verification=9wiqG9xLhcGi9tvgCvv_kIrQdHEdBBrMbSXqylkZibk"3600
TXT"brevo-code:0a3a97a2d3c411ed1c83b0c8d409eb52"3600
TXT"google-site-verification=B1ATiIs3qqwWa4dvmTHu3_at3nv1PuSZE0JCuFaEpHU"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; 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