vital.de

Checked 22 October 2026, 00:52 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

ns5.klambt.de, ns5.klambt.services, ns6.klambt.de, ns6.klambt.services

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns5.klambt.de, ns5.klambt.services, ns6.klambt.de, ns6.klambt.services
NS in the zone
ns5.klambt.de, ns5.klambt.services, ns6.klambt.de, ns6.klambt.services
NameserverAddressesNetwork (AS)Glue
ns5.klambt.de205.251.195.64AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns5.klambt.services205.251.199.98AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns6.klambt.de205.251.193.116AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns6.klambt.services205.251.196.247 2600:9000:5304:f700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns5.klambt.de, ns5.klambt.services, ns6.klambt.de, ns6.klambt.services.
  • ✓ 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 4 IPv4 /24s and 1 IPv6 /48.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 5 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, .services.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns5.klambt.de, ns5.klambt.services, ns6.klambt.de.
    #13

Nameservers

pass

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns5.klambt.de 205.251.195.64NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns5.klambt.services 205.251.199.98NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns6.klambt.de 205.251.193.116NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns6.klambt.services 205.251.196.247NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns6.klambt.services 2600:9000:5304:f700::1NOERROR, 8 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 5 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

info

serial 1 · primary ns-832.awsdns-40.net

Found

Primary (MNAME)
ns-832.awsdns-40.net
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns5.klambt.de (205.251.195.64)1
ns5.klambt.services (205.251.199.98)1
ns6.klambt.de (205.251.193.116)1
ns6.klambt.services (205.251.196.247)1
ns6.klambt.services (2600:9000:5304:f700::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • i
    Hidden master
    The primary nameserver ns-832.awsdns-40.net is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

12 records at the apex

Found

Read from
205.251.195.64:53
TypeValueTTL
SOAns-832.awsdns-40.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns5.klambt.de.86400
NSns5.klambt.services.86400
NSns6.klambt.de.86400
NSns6.klambt.services.86400
A91.98.81.136300
MX10 vital-de.mail.protection.outlook.com.3600
TXT"411289"300
TXT"facebook-domain-verification=a6m6nsnwyv7zu151w5w6q2o1tsp47o"300
TXT"google-site-verification=r7JGwjjLEe18mxmOlSq-Iix0EBzyaFFl16QTU-AcN7E"300
TXT"tollbit-domain-verification=75cfe4b5dff5220392a1411c5593cc112d768406d96d0f6a2d301e986077004e"300
TXT"v=spf1 a:mail.klambt.de ip4:213.144.30.74 include:spf.protection.outlook.com include:amazonses.com include:_netblocks.intan.net include:_netblocks2.intan.net include:spf.dsb.net include:servers.mcsv.net -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, NS 1d.
  • ✓ 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