franzis.de

Checked 21 October 2026, 22:31 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

dns1.dpn.de, dns2.dpn.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns1.dpn.de, dns2.dpn.de
NS in the zone
dns1.dpn.de, dns2.dpn.de
NameserverAddressesNetwork (AS)Glue
dns1.dpn.de194.231.40.24AS3257 GTT-BACKBONE - GTT Communications Inc., US194.231.40.24
dns2.dpn.de194.77.111.16AS3257 GTT-BACKBONE - GTT Communications Inc., US194.77.111.16

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.dpn.de, dns2.dpn.de.
    #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 (AS3257 (GTT-BACKBONE - GTT Communications Inc., US): 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 .de
    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
dns1.dpn.de 194.231.40.24NOERROR, 11 ms, authoritativenoyes / yesrefusedBind
dns2.dpn.de 194.77.111.16NOERROR, 29 ms, authoritativenoyes / yesrefusedBind

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: dns1.dpn.de: "Bind"; dns2.dpn.de: "Bind".
    #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 2026052005 · primary dns2.dpn.de

Found

Primary (MNAME)
dns2.dpn.de
Contact (RNAME)
hostmaster.dpn.de
Serial
2026052005
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.dpn.de (194.231.40.24)2026052005
dns2.dpn.de (194.77.111.16)2026052005

Checks

  • ✓ Serial 2026052005 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns2.dpn.de is one of the listed nameservers.
  • ✓ Contact hostmaster@dpn.de #25
    The SOA RNAME hostmaster.dpn.de means hostmaster@dpn.de.
  • ✓ Date-based serial #26
    The serial 2026052005 follows the YYYYMMDDnn convention (2026-05-20).

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

10 records at the apex

Found

Read from
194.231.40.24:53
TypeValueTTL
SOAdns2.dpn.de. hostmaster.dpn.de. 2026052005 10800 3600 1209600 3600600
NSdns1.dpn.de.600
NSdns2.dpn.de.600
A62.113.231.84600
AAAA2a00:f48:1008::231:84:10600
MX0 franzis-de.mail.protection.outlook.com.600
TXT"klaviyo-site-verification=T8QhkH"600
TXT"MS=ms42427572"600
TXT"v=spf1 a mx ip4:212.60.207.185 ip4:212.60.207.183 ip4:213.61.108.74 ip4:217.150.155.12 include:spf.mandrillapp.com include:spf.dixa.io include:spf.protection.outlook.com ~all"600
TXT"google-site-verification=RZkT8GoMMVkBlEIJ4bmrPTTVxf-n8EOi1L8-1H322O0"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, AAAA 10m, MX 10m, NS 10m. The NS TTL at the parent is 1d and in the zone 10m; 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