tu.berlin

Observed Jul 27, 2026, 21:53 UTC (5d 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.

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Up right now

Runs onVerein zur Foerderung eines Deutschen Forschungsnetzes e.V

Secured byHellenic Academic and Research Institutions CA

Also usesFacebook/MetaGoogle Search Console

1 subdomain · tranco_100k

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

INFRASTRUCTURE MAPwhat tu.berlin actually stands on - every host below is a signed observation

tu.berlin

A / AAAA

141.23.73.70

Verein zur Foerderung eines Deutschen Forschungsnetzes e.Vserves the site

ns.tu-berlin.dedns-2.dfn.dedns-3.dfn.de

tu-berlin.de + dfn.deanswers its DNS

a1861.mx.srv.dfn.deb1861.mx.srv.dfn.dec1861.mx.srv.dfn.de

dfn.dereceives its email

TLS

tu.berlin

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

141.23.73.70

MX 3

10a1861.mx.srv.dfn.de
10b1861.mx.srv.dfn.de
10c1861.mx.srv.dfn.de

TXT 5

HARICA-Kw6XkwRFF6230Q8w7a4
facebook-domain-verification=kpr2pds6q6k2truawumigwv2ljtntq
google-site-verification=w6tlyWVZyfn1bxpXywReSxlvBIR0PWf80VyGHs-Cxkc
v=spf1 ip4:130.149.7.33/32 ip4:130.149.7.70/32 ip4:141.23.12.141/32 ip4:141.23.12.142/32 ip4:141.23.12.143/32 ip4:194.95.233.66/32 ip4:194.95.235.66/32 ip4:194.95.239.66/32 ~all
v=DMARC1;p=quarantine;sp=none;pct=100;rua=mailto:postmaster@win.tu-berlin.de;rf=afrf;ruf=mailto:postmaster@win.tu-berlin.de;fo=1;ri=86400;adkim=r;aspf=r

NS 3

ns.tu-berlin.de
dns-2.dfn.de
dns-3.dfn.de

SOA 1

ns.tu-berlin.de noc.tu-berlin.de

CAA 4

issue "harica.gr"
issue "pki.dfn.de"
issue "trust-provider.com"
issue "usertrust.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`tu.berlin`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Fri, 11 Dec 2026 15:56:40 +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.tu.berlin

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 tu.berlin. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_13bf4880e57241aa
Output Hash: bdfd0bc9c9bf67c789b837ea1190905edb9c79fad6ac343b4498b6dcaf9fa96f
Signature: ed25519:2a1b756db4e53089bd320520e47006d88fa24c312943c27f45d5a9db8cd0346bb8a11d4413c2a9f0485a749df9afd318885fb80cac2c236a2e825036dd46560e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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