univention.de

Checked 22 October 2026, 00:50 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

ns1115.ui-dns.biz, ns1115.ui-dns.com, ns1115.ui-dns.de, ns1115.ui-dns.org

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1115.ui-dns.biz, ns1115.ui-dns.com, ns1115.ui-dns.de, ns1115.ui-dns.org
NS in the zone
ns1115.ui-dns.biz, ns1115.ui-dns.com, ns1115.ui-dns.de, ns1115.ui-dns.org
NameserverAddressesNetwork (AS)Glue
ns1115.ui-dns.biz185.132.33.115 2607:f1c0:fe:53:185:132:33:115AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns1115.ui-dns.com185.132.34.115 2607:f1c0:fe:53:185:132:34:115AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns1115.ui-dns.de185.132.32.115 2607:f1c0:fe:53:185:132:32:115AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns1115.ui-dns.org185.132.35.115 2607:f1c0:fe:53:185:132:35:115AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1115.ui-dns.biz, ns1115.ui-dns.com, ns1115.ui-dns.de, ns1115.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.
  • i
    One address family in one network
    all IPv6 addresses are in 2607:f1c0:fe::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS15418 (IONOS-ANYCAST - Fasthosts Internet Limited, GB): 8 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 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

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1115.ui-dns.biz 185.132.33.115NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.biz 2607:f1c0:fe:53:185:132:33:115NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.com 185.132.34.115NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.com 2607:f1c0:fe:53:185:132:34:115NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.de 185.132.32.115NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.de 2607:f1c0:fe:53:185:132:32:115NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.org 185.132.35.115NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1115.ui-dns.org 2607:f1c0:fe:53:185:132:35:115NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 8 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: ns1115.ui-dns.biz: "Served by PowerDNS - https://www.powerdns.com/"; ns1115.ui-dns.com: "Served by PowerDNS - https://www.powerdns.com/"; ns1115.ui-dns.de: "Served by PowerDNS - https://www.powerdns.com/"; ns1115.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

pass

serial 2017081677 · primary ns1115.ui-dns.biz

Found

Primary (MNAME)
ns1115.ui-dns.biz
Contact (RNAME)
hostmaster.schlund.de
Serial
2017081677
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1115.ui-dns.biz (185.132.33.115)2017081677
ns1115.ui-dns.biz (2607:f1c0:fe:53:185:132:33:115)2017081677
ns1115.ui-dns.com (185.132.34.115)2017081677
ns1115.ui-dns.com (2607:f1c0:fe:53:185:132:34:115)2017081677
ns1115.ui-dns.de (185.132.32.115)2017081677
ns1115.ui-dns.de (2607:f1c0:fe:53:185:132:32:115)2017081677
ns1115.ui-dns.org (185.132.35.115)2017081677
ns1115.ui-dns.org (2607:f1c0:fe:53:185:132:35:115)2017081677

Checks

  • ✓ Serial 2017081677 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1115.ui-dns.biz is one of the listed nameservers.
  • ✓ Contact hostmaster@schlund.de #25
    The SOA RNAME hostmaster.schlund.de means hostmaster@schlund.de.
  • ✓ Date-based serial #26
    The serial 2017081677 follows the YYYYMMDDnn convention (2017-08-16).

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

19 records at the apex

Found

Read from
185.132.33.115:53
TypeValueTTL
SOAns1115.ui-dns.biz. hostmaster.schlund.de. 2017081677 28800 7200 604800 30086400
NSns1115.ui-dns.de.172800
NSns1115.ui-dns.biz.172800
NSns1115.ui-dns.com.172800
NSns1115.ui-dns.org.172800
A78.47.5.123600
MX11 mx01.kundenserver.de.3600
MX10 mx00.kundenserver.de.3600
TXT"google-site-verification=8gvas5HuzZZSQddpdeLIxPi4-1RN11bFYLCeMb-RvLo"300
TXT"google-site-verification=Fwi74YZCqI-qO-wi4w4GiMePmp9xKPK-Ct0XlavR-VA"3600
TXT"google-site-verification=QPFGYUwrKd8HkezJo2Gof4Q2eHa611ZjSQEqT6ofrFc"3600
TXT"v=verifydomain MS=2839654"3600
TXT"facebook-domain-verification=7dgj2vulr76wxmtbi6fo49l3vp28f6"3600
TXT"MS=4364EC95AFF7C0040638B74BFA80FC79A749A088"3600
TXT"MS=ms41230427"3600
TXT"anthropic-domain-verification-cd5sck=BbXdihNjS4EpznPju42561ZSV"3600
TXT"openai-domain-verification=dv-IMPDNqI2nq3WpvWIVRvRIgSU"3600
TXT"v=spf1 mx ip4:78.138.64.237 ip4:78.47.5.12 ip4:82.198.197.8 ip4:157.90.47.205 ip4:85.184.250.151 ip4:31.172.116.139 ip4:81.173.114.246 a:mail.univention.de include:_spf3.univention.de -all"300
TXT"apple-domain-verification=ip8HtL8ka3w9ZV5W"60

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 2d. The NS TTL at the parent is 1d and in the zone 2d; 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