ulisboa.pt

Observed Jul 22, 2026, 00:05 UTC (21h 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

Runs onFundacao para a Ciencia e a Tecnologia

Secured byHellenic Academic and Research Institutions CA

Also usesGoogle Search Console

IPv6 · tranco_10k

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

INFRASTRUCTURE MAPwhat ulisboa.pt actually stands on - every host below is a signed observation

ulisboa.pt

A / AAAA

194.117.3.272001:690:21c0:71::27

Fundacao para a Ciencia e a Tecnologiaserves the site

a.ul.ptb.ul.ptns1.tecnico.ulisboa.ptns2.tecnico.ulisboa.pt

ul.pt + ulisboa.ptanswers its DNS

mx21.ulisboa.ptmx22.ulisboa.ptmx23.ulisboa.ptmx24.ulisboa.pt

ulisboa.ptreceives its email

TLS

ulisboa.pt

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

194.117.3.27

AAAA 1

2001:690:21c0:71::27

MX 4

50mx21.ulisboa.pt
50mx22.ulisboa.pt
50mx23.ulisboa.pt
50mx24.ulisboa.pt

TXT 6

MS=ms13781830
Universidade de Lisboa
HARICA-SYDuUcaEbI2T7WOqW1t
v=spf1 mx include:ciencias.ulisboa.pt ip4:194.117.3.9 -all
google-site-verification=i0d2awDrANL67zm9zKszos_mZkhi8smwE3Z-AWPEFgc
v=DMARC1; p=none; sp=none

NS 4

a.ul.pt
b.ul.pt
ns1.tecnico.ulisboa.pt
ns2.tecnico.ulisboa.pt

SOA 1

a.ul.pt sistemas.reitoria.ulisboa.pt

SRV 1

webmail.ulisboa.pt:443 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`ulisboa.pt`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Mon, 01 Feb 2027 12:38:48 +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 (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.

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Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for ulisboa.pt. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_088aefc9650cd7ec
Output Hash: dadbd7ea5a60ead8fe6726dea625124d9cfc76245c083a94169a6d03b1f5d993
Signature: ed25519:583c1497991d009b2d441ae7dc892e3aee0d0a139b5b6dc5925999d2d5914881ea29c83e2f57340d32e6f17245baae005aff4d66de560c1abdae9712bc711900
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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