inka.de

Checked 21 October 2026, 23:00 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

info

ns.inka.de, ns2.ka-ip.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.inka.de, ns2.ka-ip.net
NS in the zone
ns.inka.de, ns2.ka-ip.net
NameserverAddressesNetwork (AS)Glue
ns.inka.de193.197.184.1AS553 BELWUE - Universitaet Stuttgart, DE193.197.184.1
ns2.ka-ip.net81.169.170.110 2a01:238:4238:b002:707f:b9ff:fe30:8291AS6724 STRATO - Strato GmbH, DE AS6724 STRATO - Strato GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.inka.de, ns2.ka-ip.net.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns.inka.de.
  • ✓ 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 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS553 (BELWUE - Universitaet Stuttgart, DE): 1 address; AS6724 (STRATO - Strato GmbH, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns.inka.de.
    #13

Nameservers

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.inka.de 193.197.184.1NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns2.ka-ip.net 81.169.170.110NOERROR, 13 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu
ns2.ka-ip.net 2a01:238:4238:b002:707f:b9ff:fe30:8291NOERROR, 13 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu

Checks

  • ✓ All respond #14
    All 3 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: ns2.ka-ip.net: "9.18.39-0ubuntu0.22.04.7-Ubuntu". 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 2026041000 · primary ns.inka.de

Found

Primary (MNAME)
ns.inka.de
Contact (RNAME)
hostmaster.inka.de
Serial
2026041000
Refresh / retry
21600 s / 7200 s
Expire
604800 s
Negative TTL
43200 s

Serial per nameserver

NameserverSerial
ns.inka.de (193.197.184.1)2026041000
ns2.ka-ip.net (81.169.170.110)2026041000
ns2.ka-ip.net (2a01:238:4238:b002:707f:b9ff:fe30:8291)2026041000

Checks

  • ✓ Serial 2026041000 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 2h, expire 7d, negative TTL 12h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.inka.de is one of the listed nameservers.
  • ✓ Contact hostmaster@inka.de #25
    The SOA RNAME hostmaster.inka.de means hostmaster@inka.de.
  • ✓ Date-based serial #26
    The serial 2026041000 follows the YYYYMMDDnn convention (2026-04-10).

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

6 records at the apex

Found

Read from
193.197.184.1:53
TypeValueTTL
SOAns.inka.de. hostmaster.inka.de. 2026041000 21600 7200 604800 4320021600
NSns2.ka-ip.net.21600
NSns.inka.de.21600
A193.197.184.121600
MX10 mail.inka.de.21600
TXT"v=spf1 a mx a:cuzco.inka.de a:inti.inka.de ~all"3600

Checks

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