hof-university.de

Checked 21 October 2026, 22:50 UTC · via 8.8.8.8
!Passed with warnings
21 passed 1 warning 0 failed 7 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

deneb.dfn.de, sh-dns01e.hof-university.de, sh-dns02e.hof-university.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
deneb.dfn.de, sh-dns01e.hof-university.de, sh-dns02e.hof-university.de
NS in the zone
deneb.dfn.de, sh-dns01e.hof-university.de, sh-dns02e.hof-university.de
NameserverAddressesNetwork (AS)Glue
deneb.dfn.de192.76.176.9 2001:638:800:1::9AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE-
sh-dns01e.hof-university.de194.95.61.33AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE194.95.61.33
sh-dns02e.hof-university.de194.95.61.34AS680 DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE194.95.61.34

Checks

  • ✓ 3 nameservers #6
    Delegated to deneb.dfn.de, sh-dns01e.hof-university.de, sh-dns02e.hof-university.de.
  • ✓ 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: sh-dns01e.hof-university.de, sh-dns02e.hof-university.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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS680 (DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .de
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: sh-dns01e.hof-university.de, sh-dns02e.hof-university.de.
    #13

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
deneb.dfn.de 192.76.176.9NOERROR, 14 ms, authoritativenoyes / yesrefused0
deneb.dfn.de 2001:638:800:1::9NOERROR, 13 ms, authoritativenoyes / yesrefused0
sh-dns01e.hof-university.de 194.95.61.33NOERROR, 15 ms, authoritativenoyes / yesrefused-
sh-dns02e.hof-university.de 194.95.61.34NOERROR, 15 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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: deneb.dfn.de: "0".
    #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 2026101601 · primary sh-dns01e.hof-university.de

Found

Primary (MNAME)
sh-dns01e.hof-university.de
Contact (RNAME)
root.hof-university.de
Serial
2026101601
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
deneb.dfn.de (192.76.176.9)2026101601
deneb.dfn.de (2001:638:800:1::9)2026101601
sh-dns01e.hof-university.de (194.95.61.33)2026101601
sh-dns02e.hof-university.de (194.95.61.34)2026101601

Checks

  • ✓ Serial 2026101601 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver sh-dns01e.hof-university.de is one of the listed nameservers.
  • ✓ Contact root@hof-university.de #25
    The SOA RNAME root.hof-university.de means root@hof-university.de.
  • ✓ Date-based serial #26
    The serial 2026101601 follows the YYYYMMDDnn convention (2026-10-16).

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

14 records at the apex

Found

Read from
192.76.176.9:53
TypeValueTTL
SOAsh-dns01e.hof-university.de. root.hof-university.de. 2026101601 28800 7200 604800 8640086400
NSsh-dns02e.hof-university.de.86400
NSsh-dns01e.hof-university.de.86400
NSdeneb.dfn.de.86400
A194.95.61.21786400
MX0 hofuniversity-de0i.mail.protection.outlook.com.3600
TXT"apple-domain-verification=D31xlUExLztbMJJi"300
TXT"adobe-idp-site-verification=5ae9c077f76f4d33d00ce55403df706cdd3f4155cbc03a73b58fd3b210b6cb06"300
TXT"MS=ms71247379"300
TXT"dell-technologies-domain-verification=hof-university.de_35de97f2-b5d0-4ab8-b03e-9a83e6484efc_1740831819"300
TXT"v=spf1 mx a:moodle.hof-university.de a:newsletter.hof-university.de a:bvbvxmail.bib-bvb.de ip4:194.95.61.4 ip4:194.95.60.119 ip4:194.95.60.204 include:spf.dynect.net include:spf.crsend.com include:spf.protection.outlook.com include:_spf.b-ite.com -all"300
TXT"nintex.64f9af7d37420dceaa259f36"300
TXT"miro-verification=960135c169c76deeef5d50fda5df43a52b188097"300
TXT"HARICA-DRypbFgTVRF9KNs7FoX"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, 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