dfki.de

Observed Jul 21, 2026, 16:40 UTC (2d 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

Guarded by a firewall

Runs onCloudflare

Email byMicrosoft 365

Secured byHellenic Academic and Research Institutions CA

Also usesGoogle Search Console

6 subdomains · tranco_100k

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

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

dfki.de

A / AAAA

134.96.191.57

Cloudflareserves the site

deneb.dfn.dens2.dfki.dens1.dfki.dens.informatik.uni-bremen.de+1 more

dfn.de + dfki.de + moreanswers its DNS

dfki-de.mail.protection.outlook.com

Microsoft 365receives its email

TLS

dfki.de

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

134.96.191.57

MX 1

0dfki-de.mail.protection.outlook.com

TXT 6

adobe-idp-site-verification=267539f8a8a260369b0162359443db47a3d709c51c1552a16db95a29319a2229
MS=8CFBE5FC2F594347D3578EE9B29997E004FDAF0E
v=spf1 include:spf-sb.dfki.de include:spf-kl.dfki.de include:spf-x.dfki.de include:spf.protection.outlook.com include:spfa.myconvento.com ~all
google-site-verification=6iKtuyAdMvNDq_EvhxhMP-GXOlSDSjUgkvoDwFjBcGQ
_telesec-domain-validation=2025-02-18_ALjPA1kGxDGUjsm1EtBUeH8aajovKFyPE6vOEtgqcr4yhXaxNp
v=DMARC1; p=none; rua=mailto:dmarc@dfki.de

NS 5

deneb.dfn.de
ns2.dfki.de
ns1.dfki.de
ns.informatik.uni-bremen.de
ns.rz.uni-saarland.de

SOA 1

ns1.dfki.de hostmaster.dfki.de

CAA 5

issue "sectigo.com"
issue "letsencrypt.org"
issue "telesec.de"
issue "harica.gr"
issue "pki.dfn.de"

TLS Certificates (3)

Common Name	Issuer	Expires
`dfki.de`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Thu, 04 Mar 2027 09:35:42 +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 (6)

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 dfki.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_b4c712fb28d8756d
Output Hash: 2ceeb7164e1a01df487d327b5db8bf4d2397b9fc1872f413fc857f0a910e718e
Signature: ed25519:b4632f1ec32d5e131c8441e32b2f8f6361d37793f5534cca2e20bec19fecc6655b576bee62c47cb1b2b7b225db4329627e52f38994a0513ed41d51eefc63ec01
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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