upc.edu

Observed Jul 24, 2026, 20:10 UTC (9d 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 byGoogle Workspace

Secured byHellenic Academic and Research Institutions CA

Also usesGoogle Search ConsoleFacebook/Meta

8 subdomains · tranco

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

INFRASTRUCTURE MAPwhat upc.edu actually stands on - every host below is a signed observation

upc.edu

A / AAAA

147.83.2.135

unattributedserves the site

ns1.cesca.catns2.cesca.catns2.upc.eduns1.upc.edu

cesca.cat + upc.eduanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt4.aspmx.l.google.comalt2.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

www.upc.edu

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

147.83.2.135

MX 5

1aspmx.l.google.com
5alt1.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt2.aspmx.l.google.com
10alt3.aspmx.l.google.com

TXT 11

brevo-code:1f3f68c59c45afb7f1aa82e0fa5f50c9
MS=5F57EA05461D4811AEF4C3F8ED0F52F53DBD8A4B
1657696626453
a81b366c-42d9-43bd-89d3-040fe23f50cd
1687262495881
facebook-domain-verification=njmvfgzqisovaytxj5f8up1ovvrf3q
v=spf1 include:_spf1main.upc.edu include:_spf1secondary.upc.edu include:_spf2lsi.upc.edu include:_spf4fib.upc.edu ?all
bw=mCcVMjRxJ1fjrN0bQ5RHJkjjQHSxIHcYd8xUS8NoBlvn
voje86dvmac5sh6b3s8fgdf179
google-site-verification=qFT1lJveXpwibVv5f8M5BaDBWOhxDSjuvwfv_awou4Y

NS 4

ns1.cesca.cat
ns2.cesca.cat
ns2.upc.edu
ns1.upc.edu

SOA 1

ns.upc.edu hostmaster.upcnet.es

TLS Certificates (3)

Common Name	Issuer	Expires
`www.upc.edu`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Sat, 06 Feb 2027 15:23:25 +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 (8)

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 upc.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_6122985c4028e2d9
Output Hash: 1a3c4dff67a5f6a88af26a5add348451fbd247f3830037a45b268d142b652250
Signature: ed25519:6fb3ae003cf7a3cd2d51672b778f6d607feccb80a84ea2e1d8d65281aa475540c5e74829c40d682bb867d46f2613e63f300aaffd7250f267b9f26b25153e5506
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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