kbv.de

Checked 21 October 2026, 23:02 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 4 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

a1-105.akam.net, a11-65.akam.net, a18-64.akam.net, a20-67.akam.net, a28-64.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-105.akam.net, a11-65.akam.net, a18-64.akam.net, a20-67.akam.net, a28-64.akam.net
NS in the zone
a1-105.akam.net, a11-65.akam.net, a18-64.akam.net, a20-67.akam.net, a28-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-105.akam.net193.108.91.105 2600:1401:2::69AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-65.akam.net84.53.139.65 2600:1480:1::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a18-64.akam.net95.101.36.64 2600:1480:4800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-67.akam.net95.100.175.67 2a02:26f0:67::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a28-64.akam.net95.100.173.64 2600:1480:d800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 5 nameservers #6
    Delegated to a1-105.akam.net, a11-65.akam.net, a18-64.akam.net, a20-67.akam.net, a28-64.akam.net.
  • ✓ 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 5 IPv4 /24s and 5 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 9 addresses.
  • i
    All nameserver names under .net
    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

warn

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-105.akam.net 193.108.91.105NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
a1-105.akam.net 2600:1401:2::69NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a11-65.akam.net 84.53.139.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
a11-65.akam.net 2600:1480:1::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a18-64.akam.net 95.101.36.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a18-64.akam.net 2600:1480:4800::40NOERROR, 5 ms, authoritativenoyes / yesrefused48878.32
a20-67.akam.net 95.100.175.67NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a20-67.akam.net 2a02:26f0:67::43NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
a28-64.akam.net 95.100.173.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a28-64.akam.net 2600:1480:d800::40NOERROR, 5 ms, authoritativenoyes / yesrefused48878.27

Checks

  • ✓ All respond #14
    All 10 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: a1-105.akam.net: "41824.11"; a1-105.akam.net: "41824.4"; a11-65.akam.net: "41824.11"; a11-65.akam.net: "41824.5"; a18-64.akam.net: "48878.33"; a18-64.akam.net: "48878.32"; a20-67.akam.net: "48878.26"; a20-67.akam.net: "48878.30"; a28-64.akam.net: "48878.32"; a28-64.akam.net: "48878.27". 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 2026101401 · primary a1-105.akam.net

Found

Primary (MNAME)
a1-105.akam.net
Contact (RNAME)
wanadmin.kbv.de
Serial
2026101401
Refresh / retry
10800 s / 3200 s
Expire
1209600 s
Negative TTL
39600 s

Serial per nameserver

NameserverSerial
a1-105.akam.net (193.108.91.105)2026101401
a1-105.akam.net (2600:1401:2::69)2026101401
a11-65.akam.net (84.53.139.65)2026101401
a11-65.akam.net (2600:1480:1::41)2026101401
a18-64.akam.net (95.101.36.64)2026101401
a18-64.akam.net (2600:1480:4800::40)2026101401
a20-67.akam.net (95.100.175.67)2026101401
a20-67.akam.net (2a02:26f0:67::43)2026101401
a28-64.akam.net (95.100.173.64)2026101401
a28-64.akam.net (2600:1480:d800::40)2026101401

Checks

  • ✓ Serial 2026101401 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 53m20s, expire 14d, negative TTL 11h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-105.akam.net is one of the listed nameservers.
  • ✓ Contact wanadmin@kbv.de #25
    The SOA RNAME wanadmin.kbv.de means wanadmin@kbv.de.
  • ✓ Date-based serial #26
    The serial 2026101401 follows the YYYYMMDDnn convention (2026-10-14).

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
193.108.91.105:53
TypeValueTTL
SOAa1-105.akam.net. wanadmin.kbv.de. 2026101401 10800 3200 1209600 3960021600
NSa18-64.akam.net.21600
NSa1-105.akam.net.21600
NSa28-64.akam.net.21600
NSa20-67.akam.net.21600
NSa11-65.akam.net.21600
A195.149.76.2300
MX1 a.mx.kbv.de.21600
TXT"evenito:17cdf09c-1eff-43c7-9009-0b8e33bacca5"21600
TXT"v=spf1 mx -all"21600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, 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