hhu.de
Observed Jul 24, 2026, 18:52 UTC (7d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Runs onVerein zur Foerderung eines Deutschen Forschungsnetzes e.V
Secured byHellenic Academic and Research Institutions CA
Also usesGoogle Search Console
63 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat hhu.de actually stands on - every host below is a signed observation
hhu.de
A / AAAA
134.99.128.238
Verein zur Foerderung eines Deutschen Forschungsnetzes e.Vserves the site
NS
selene.rz.uni-duesseldorf.dedns-3.dfn.desirene.rz.uni-duesseldorf.dedns-2.dfn.de+1 more
uni-duesseldorf.de + dfn.deanswers its DNS
MX
c2881.mx.srv.dfn.dea2881.mx.srv.dfn.deb2881.mx.srv.dfn.de
dfn.dereceives its email
TLS
hhu.de
Hellenic Academic and Research Institutions CAissued its certificate
DNS Records
A 1
134.99.128.238
MX 3
10c2881.mx.srv.dfn.de10a2881.mx.srv.dfn.de10b2881.mx.srv.dfn.de
TXT 10
v=spf1 ip4:134.99.18.0/24 ip4:134.99.128.0/24 ip4:134.99.108.0/27 ip4:134.99.108.128/27 include:spf.qb-feedback.com include:_spf.o288.mx.srv.dfn.de -allHARICA-b01FuDqexohoPakaPN0security_policy=https://www.hhu.de/it-sicherheitgoogle-site-verification=kiygt8zU6VCAudun5LjKaoOEIJNgoM2yBWjSksiXaIwadobe-idp-site-verification=18ec973e322894c7c0c11b75d7434eb7c4a5b8d2f164b30a6d47f928c7b5f811b7363772c1b9953bc35b74b12e12c69cT222-U324-V252cisco-ci-domain-verification=4a60e9dddacd024a7029731869b6259bfb32e550f5004eb699afadf7d558cbfsecurity_contact=cert@hhu.dev=DMARC1;p=none;sp=quarantine;pct=100;rua=mailto:dmarc-reports@hhu.de;ruf=mailto:dmarc-reports@hhu.de;aspf=r
NS 5
selene.rz.uni-duesseldorf.dedns-3.dfn.desirene.rz.uni-duesseldorf.dedns-2.dfn.dedns-1.dfn.de
SOA 1
sirene.rz.uni-duesseldorf.de hostmaster.uni-duesseldorf.de
CAA 6
issue "telesec.de"issue "harica.gr"iodef "mailto:cert@hhu.de"issue "pki.dfn.de"issue "sectigo.com"issuewild "harica.gr"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
hhu.de |
C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS ECC 1 | Thu, 21 Jan 2027 15:58:58 +0000 |
GEANT TLS ECC 1 |
C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS ECC Root CA 2021 | Sat, 31 Dec 2039 11:14:20 +0000 |
HARICA TLS ECC Root CA 2021 |
C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions ECC RootCA 2015 | Fri, 31 Aug 2029 07:44:36 +0000 |
Subdomains (63)
- buergeruni.hhu.de
- cedus.hhu.de
- colab.hhu.de
- diid.hhu.de
- diversity.hhu.de
- elearning.hhu.de
- forschung.hhu.de
- gffu.hhu.de
- haus-der-universitaet.hhu.de
- hcsd.hhu.de
- hdu.hhu.de
- heine-slam.hhu.de
- hera.hhu.de
- igrad.hhu.de
- juno.hhu.de
- mentoring.hhu.de
- mittelbauvertretung.hhu.de
- pr-niwi.hhu.de
- profil.hhu.de
- prwiss.hhu.de
- sbv.hhu.de
- science-fight.hhu.de
- sell.hhu.de
- shk-rat.hhu.de
- smm.hhu.de
- spz.hhu.de
- studienstart.hhu.de
- studierendenakademie.hhu.de
- unichor.hhu.de
- uniorchester.hhu.de
- www.buergeruni.hhu.de
- www.cedus.hhu.de
- www.colab.hhu.de
- www.diid.hhu.de
- www.diversity.hhu.de
- www.elearning.hhu.de
- www.forschung.hhu.de
- www.gffu.hhu.de
- www.haus-der-universitaet.hhu.de
- www.hcsd.hhu.de
- www.hdu.hhu.de
- www.heine-slam.hhu.de
- www.hera.hhu.de
- www.hhu.de
- www.igrad.hhu.de
- www.juno.hhu.de
- www.mentoring.hhu.de
- www.mittelbauvertretung.hhu.de
- www.pr-niwi.hhu.de
- www.profil.hhu.de
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for hhu.de. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/hhu.de">
<img src="https://domaindrift.io/badge/hhu.de.svg"
width="300" height="64" alt="DomainDrift signed observations for hhu.de">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_a019b679dd91eac2- Output Hash
68d2f134d4a34429073692563dccc5fffc4047f079037e6c424ccce4d888a365- Signature
ed25519:5af2180c438283ee6d61e9c280f751414032314ff1b99e9f63bd0b527dcb1b702d91f98849481a104f00a14a73a988847c29a36c9bb5832be6666d46beaaba06- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast