ruc.dk

Observed Jul 24, 2026, 19:43 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

Email byMicrosoft 365

Secured byHellenic Academic and Research Institutions CA

Also usesZoomFacebook/MetaGoogle Search Console

tranco_100k

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

INFRASTRUCTURE MAPwhat ruc.dk actually stands on - every host below is a signed observation

ruc.dk

A / AAAA

130.225.221.44

unattributedserves the site

emma.ruc.dkns-soa.darenet.dk

ruc.dk + darenet.dkanswers its DNS

ruc-dk.mail.protection.outlook.com

Microsoft 365receives its email

TLS

*.ruc.dk

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

130.225.221.44

MX 1

20ruc-dk.mail.protection.outlook.com

TXT 13

HARICA-PbyBy9cc7YSnw2eRrON
google-site-verification=r3pqaC7b6U3XRD6X6yZHc2taQx9ys3CDbUG2GFhz3Hs
adobe-idp-site-verification=97490e4f776f0661b38346a00a9442cf77ea84fbe4e0d06b546ee1ff531b47dd
MS=ms34432307
ubivox-site-verification=pofcGso-vY9yWtouahAIKsmuf
ZOOM_verify_ykOQG-M0Qqe2k-JTnoPgJw
ubivox-site-verification=IlGL8G5I4K1an2RFPKmP7E23b
v=spf1 a ip4:130.225.220.22/32 ip4:130.225.220.45/32 ip4:130.226.198.172/31 ip4:130.226.198.174/32 ip4:130.226.173.80/29 ip4:193.162.253.130/32 include:uxmail.io include:_spf.vocast.com include:spf.protection.outlook.com include:_spf.qp-mail.eu include:onmicrosoft.com -all
facebook-domain-verification=jwtj4lpyeoziu7sv5qtd4met7l06ut
cisco-ci-domain-verification=8aedad5849dbd9d450473a56d1ee838a019982c1d488ab8859b806f47931902

NS 2

emma.ruc.dk
ns-soa.darenet.dk

SOA 1

emma.ruc.dk net-adm.ruc.dk

TLS Certificates (3)

Common Name	Issuer	Expires
`*.ruc.dk`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Thu, 11 Mar 2027 07:50:16 +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 (0)

None observed.

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 ruc.dk. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_c628f8e8894a9eb5
Output Hash: 7b86f82fbf28fe04166a664f61c184a281512d6d328733e3a900ebf5750769fb
Signature: ed25519:d913ddbdc192f9ac590ee93d210536d1b4d6895855490f940ed2a92c5a1f23b732263c76691e6c161e9cb6ce351c68bc7e60873e8752231f9010632985f8a003
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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