ur.de

Observed Jul 24, 2026, 20:04 UTC (8d 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

2 subdomains · tranco_100k

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

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

ur.de

A / AAAA

57.129.72.254

unattributedserves the site

dns2.uni-regensburg.dedns1.uni-regensburg.dedns-3.dfn.de

uni-regensburg.de + dfn.deanswers its DNS

a2561.mx.srv.dfn.deb2561.mx.srv.dfn.dec2561.mx.srv.dfn.de

dfn.dereceives its email

TLS

next.uni-r.de

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

57.129.72.254

MX 3

30a2561.mx.srv.dfn.de
30b2561.mx.srv.dfn.de
30c2561.mx.srv.dfn.de

TXT 2

adobe-idp-site-verification=e57e4339da7d9d63f3f1191241f46e3be0b0028abdc13f8b80753d9cee14e754
v=spf1 include:_spf.o256.mx.srv.dfn.de include:spf.protection.outlook.com ip4:194.94.157.128/28 ip4:194.94.157.144/28 ip4:194.94.155.48/28 ip4:194.94.155.224/28 -all

NS 3

dns2.uni-regensburg.de
dns1.uni-regensburg.de
dns-3.dfn.de

SOA 1

dns1.uni-regensburg.de hostmaster.uni-regensburg.de

SRV 3

jabber.uni-regensburg.de:5222 p0
jabber.uni-regensburg.de:5269 p0
mail.uni-regensburg.de:587 p0

CAA 3

issue "harica.gr"
issue "telesec.de"
issuewild "harica.gr"

TLS Certificates (3)

Common Name	Issuer	Expires
`next.uni-r.de`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Sat, 06 Feb 2027 06:45:47 +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, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS RSA Root CA 2021	Mon, 13 Feb 2045 10:55:37 +0000

Subdomains (2)

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

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

Ed25519 Receipt

Receipt ID: rcpt_821f01d077e79b7d
Output Hash: 63a198db4200d291a679da92e353b8ac45af0afe8b4bc43a492acac82205411e
Signature: ed25519:7fa48f5d13039a710c7a8621d89f44814e8fad64d0a1b0b9b2a7a8cf665fd2a6f6a4248fb80b83df2ad6e5555690d457281a9288938e4b1eca1d1910b0469f00
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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