hockenheimring.de

Checked 21 October 2026, 22:50 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 5 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

dns.datafarm.de, hans.continum.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns.datafarm.de, hans.continum.net
NS in the zone
dns.datafarm.de, hans.continum.net
NameserverAddressesNetwork (AS)Glue
dns.datafarm.de217.22.194.4AS20849 CONTINUM - CONTINUM AG, DE217.22.194.4
hans.continum.net80.72.129.44AS20849 CONTINUM - CONTINUM AG, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns.datafarm.de, hans.continum.net.
    #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 (AS20849 (CONTINUM - CONTINUM AG, DE): 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
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.datafarm.de 217.22.194.4NOERROR, 6 ms, authoritativenoyes / yesrefused-
hans.continum.net 80.72.129.44NOERROR, 9 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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 2026080703 · primary hans.continum.net

Found

Primary (MNAME)
hans.continum.net
Contact (RNAME)
technik.continum.net
Serial
2026080703
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
dns.datafarm.de (217.22.194.4)2026080703
hans.continum.net (80.72.129.44)2026080703

Checks

  • ✓ Serial 2026080703 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver hans.continum.net is one of the listed nameservers.
  • ✓ Contact technik@continum.net #25
    The SOA RNAME technik.continum.net means technik@continum.net.
  • ✓ Date-based serial #26
    The serial 2026080703 follows the YYYYMMDDnn convention (2026-08-07).

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
217.22.194.4:53
TypeValueTTL
SOAhans.continum.net. technik.continum.net. 2026080703 14400 3600 604800 86400400
NSdns.datafarm.de.400
NShans.continum.net.400
A217.22.195.82400
MX10 mx-in01.eu.retarus.com.400
MX10 mx-in02.eu.retarus.com.400
TXT"brevo-code:8c159fd3e4c28342677e1f48aa76e2cd"300
TXT"_globalsign-domain-verification=D5jbeUf1DH_BB6rgrpCZp04b1GrIYMetFxXueYmDqN"300
TXT"vC5awqnqbgOpFoCxfHFqoLDJZOf66ATd8Tcbbesy9uhfWDsFh3xhsjQSEi0BJ5kbY/hGN04IeSQsJhONiXlftg=="300
TXT"v=spf1 a a:mx4.eventim.de include:_spf.hockenheimring.de include:_spf.retarus.com include:spf.nl2go.com include:spf.protection.outlook.com ~all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 6m40s, MX 6m40s, NS 6m40s. The NS TTL at the parent is 1d and in the zone 6m40s; 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