kundenserver.de

Checked 21 October 2026, 23:10 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 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

pass

ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org
NS in the zone
ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org
NameserverAddressesNetwork (AS)Glue
ns-1and1.ui-dns.biz185.132.33.200 217.160.81.200 2001:8d8:fe:53:0:d9a0:51c8:100 2607:f1c0:fe:53:185:132:33:200AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns-1and1.ui-dns.com217.160.82.200 185.132.34.200 2607:f1c0:fe:53:185:132:34:200 2001:8d8:fe:53:0:d9a0:52c8:100AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE-
ns-1and1.ui-dns.de217.160.80.200 185.132.32.200 2001:8d8:fe:53:0:d9a0:50c8:100 2607:f1c0:fe:53:185:132:32:200AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns-1and1.ui-dns.org185.132.35.200 217.160.83.200 2001:8d8:fe:53:0:d9a0:53c8:100 2607:f1c0:fe:53:185:132:35:200AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org.
  • ✓ 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 8 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15418 (IONOS-ANYCAST - Fasthosts Internet Limited, GB): 8 addresses; AS8560 (IONOS-AS - IONOS SE, DE): 8 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .de, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

16 of 16 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1and1.ui-dns.biz 185.132.33.200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.biz 217.160.81.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.biz 2001:8d8:fe:53:0:d9a0:51c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.biz 2607:f1c0:fe:53:185:132:33:200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 217.160.82.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 185.132.34.200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 2607:f1c0:fe:53:185:132:34:200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 217.160.80.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 185.132.32.200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 2607:f1c0:fe:53:185:132:32:200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 185.132.35.200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 217.160.83.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 2607:f1c0:fe:53:185:132:35:200NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 16 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: ns-1and1.ui-dns.biz: "Served by PowerDNS - https://www.powerdns.com/"; ns-1and1.ui-dns.com: "Served by PowerDNS - https://www.powerdns.com/"; ns-1and1.ui-dns.de: "Served by PowerDNS - https://www.powerdns.com/"; ns-1and1.ui-dns.org: "Served by PowerDNS - https://www.powerdns.com/".
    #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

info

serial 2013099841 · primary rns.ui-dns.de

Found

Primary (MNAME)
rns.ui-dns.de
Contact (RNAME)
dnsadmin.1und1.de
Serial
2013099841
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns-1and1.ui-dns.biz (185.132.33.200)2013099841
ns-1and1.ui-dns.biz (217.160.81.200)2013099841
ns-1and1.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c8:100)2013099841
ns-1and1.ui-dns.biz (2607:f1c0:fe:53:185:132:33:200)2013099841
ns-1and1.ui-dns.com (217.160.82.200)2013099841
ns-1and1.ui-dns.com (185.132.34.200)2013099841
ns-1and1.ui-dns.com (2607:f1c0:fe:53:185:132:34:200)2013099841
ns-1and1.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c8:100)2013099841
ns-1and1.ui-dns.de (217.160.80.200)2013099841
ns-1and1.ui-dns.de (185.132.32.200)2013099841
ns-1and1.ui-dns.de (2001:8d8:fe:53:0:d9a0:50c8:100)2013099841
ns-1and1.ui-dns.de (2607:f1c0:fe:53:185:132:32:200)2013099841
ns-1and1.ui-dns.org (185.132.35.200)2013099841
ns-1and1.ui-dns.org (217.160.83.200)2013099841
ns-1and1.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c8:100)2013099841
ns-1and1.ui-dns.org (2607:f1c0:fe:53:185:132:35:200)2013099841

Checks

  • ✓ Serial 2013099841 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 10m.
  • i
    Hidden master
    The primary nameserver rns.ui-dns.de 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 dnsadmin@1und1.de #25
    The SOA RNAME dnsadmin.1und1.de means dnsadmin@1und1.de.
  • ✓ Timestamp serial #26
    The serial 2013099841 is a Unix timestamp (2033-10-16 18:24 UTC).

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

pass

28 records at the apex

Found

Read from
185.132.33.200:53
TypeValueTTL
SOArns.ui-dns.de. dnsadmin.1und1.de. 2013099841 10800 3600 604800 60086400
NSns-1and1.ui-dns.biz.86400
NSns-1and1.ui-dns.com.86400
NSns-1and1.ui-dns.org.86400
NSns-1and1.ui-dns.de.86400
A213.165.67.109600
MX10 mxint02.1and1.com.600
MX10 mxint01.1and1.com.600
TXT"v=spf1 include:_spf.perfora.net include:_spf.kundenserver.de -all"300
TXT"kqv0vhf23lbgp0q04y1qgbw7w3nmsscf"300
TXT"25h5skxfcm7ymkknvyg3hn9mq973wqzm"300
TXT"jhy6vrcnql7tn8q4vrzxk3wvfznnz706"86400
TXT"_telesec-domain-validation=348100_2025-06-24_7x88R4tOMFRH3PQUHMnM7Ebu4Jh6MC12fWeSTohfyDMC0OUBmA"86400
TXT"_telesec-domain-validation=358289_2026-02-19_AAZwdZoOJ2pNN9w0LvWbBwHX8QhBCWoGoQrj1ZGHF8Tuq10Yi9"86400
TXT"_telesec-domain-validation=356306_2026-02-26_bxTwtCNQ00Z2I2EBcWnuPMKZylufmDWnothlXge1F9Hp6Gk316"86400
TXT"_telesec-domain-validation=2026-03-11_hJg0LJXpYimfnq2PH6oEnUCaJEvIqqTdjsFu9natyP1gZFhEBj"86400
TXT"_telesec-domain-validation=2026-03-11_Q4vJCdF6PCnt8CyXpEbV6LdxzKCLjltrfnPAFsntKXJZrp54QX"86400
TXT"_telesec-domain-validation=2026-06-09_VxYcWrlDEbTfO1c2aSAlLnlpNC7aWO5pP4WVWCBzoLOSeRf77x"86400
TXT"_telesec-domain-validation=2026-06-09_OR6DBcToO29k2GnPH6zWMYkKCEzqHqQ0jWsPe0cSMmBtjjTAIy"86400
TXT"_telesec-domain-validation=2026-06-09_etvYciFHB8C7WejzV2YjapYENzkhVv5x7ll1GOmGX0LCLBSQDJ"86400
TXT"_telesec-domain-validation=2026-06-09_ii07J5feU5unsgGmv298p2k1b2l61tuDHmhqyzL3oEqkR7FPXt"86400
TXT"_telesec-domain-validation=359174_2026-09-07_esVUlrSDNINyoPWP61gtd9H96bWnKlfQ7ARNuGgGZDm2ABQsjY"86400
CAA0 issuewild "digicert.com"86400
CAA0 issuewild "sectigo.com"86400
CAA0 issuewild "telesec.de"86400
CAA0 issue "telesec.de"86400
CAA0 issue "sectigo.com"86400
CAA0 issue "digicert.com"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, sectigo.com, telesec.de.