th-koeln.de

Observed Jul 27, 2026, 20:57 UTC (15h 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.

Verify this receipt yourself + Watch this domain

Up right now

Secured byHellenic Academic and Research Institutions CA

Also usesZoomGoogle Search Console

1 subdomain · tranco_100k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat th-koeln.de actually stands on - every host below is a signed observation

th-koeln.de

A / AAAA

139.6.10.199

unattributedserves the site

ns-iwz.nz.fh-koeln.dens-gwz.nz.fh-koeln.dedns1.uni-koeln.dedns-1.dfn.de

fh-koeln.de + uni-koeln.de + moreanswers its DNS

smtp.intranet.fh-koeln.de

fh-koeln.dereceives its email

TLS

th-koeln.de

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

139.6.10.199

MX 1

10smtp.intranet.fh-koeln.de

TXT 6

spycloud-domain-verification=85913570-860d-40b3-b6a2-780e843dabdd
v=spf1 include:spf.dynect.net include:spf.cluster4.4hr.de include:spf.nl2go.com +ip4:139.6.1.61 +ip4:139.6.1.47 +ip4:139.6.1.48 +ip4:139.6.1.49 +ip4:139.6.1.50 ?ip4:139.6.0.0/16 ~all
adobe-idp-site-verification=e84fc53907db573f415999faeba0b054a0cf1be46c1b58bfd4d6eec650e306b9
ZOOM_verify_H2KL-OQNQ66T-iTJdqSdNQ
google-site-verification=hmfXc1YzEhLwHbW1cZznK-4xyrQ6-Uc7MjbCwCEGjzM
v=DMARC1;p=none;rua=mailto:dmarc-reports-bsn@campus-it.th-koeln.de

NS 4

ns-iwz.nz.fh-koeln.de
ns-gwz.nz.fh-koeln.de
dns1.uni-koeln.de
dns-1.dfn.de

SOA 1

ns-iwz.nz.fh-koeln.de dns.th-koeln.de

SRV 1

expressway-e-01.nz.fh-koeln.de:5061 p0

CAA 6

issue "letsencrypt.org"
issue "sectigo.com"
issue "telesec.de"
iodef "mailto:dns@th-koeln.de"
issue "pki.dfn.de"
issue "harica.gr"

TLS Certificates (3)

Common Name	Issuer	Expires
`th-koeln.de`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Sat, 10 Oct 2026 10:46:54 +0000
`GEANT TLS RSA 1`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS RSA Root CA 2021	Sat, 31 Dec 2039 11:14:59 +0000
`HARICA TLS RSA Root CA 2021`	C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions RootCA 2015	Fri, 31 Aug 2029 07:41:54 +0000

Subdomains (1)

www.th-koeln.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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for th-koeln.de. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/th-koeln.de">
  <img src="https://domaindrift.io/badge/th-koeln.de.svg"
       width="300" height="64" alt="DomainDrift signed observations for th-koeln.de">
</a>

Ed25519 Receipt

Receipt ID: rcpt_5337499c07f1a994
Output Hash: e329d45fb81c8ba86e7058c023b4a8495df1e351059dc49983a469e6e4ef1c54
Signature: ed25519:3e22363a13b8744d833baa800612354eaf127c18f2914acfd694590480356fa95cd6587f1f482d6dfb8dfd083cfdbdff99f9e9db9f4dc1762a9c9330138cf409
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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