uff.br

Observed Jul 22, 2026, 00:26 UTC (59m ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onFundacao Carlos Chagas Filho de Amparo a Pesquisa

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

1 subdomain · tranco_20k

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

INFRASTRUCTURE MAPwhat uff.br actually stands on - every host below is a signed observation

uff.br

A / AAAA

200.20.0.21

Fundacao Carlos Chagas Filho de Amparo a Pesquisaserves the site

server.uff.brguanabara.rederio.brmarlin.telecom.uff.br

uff.br + rederio.branswers its DNS

smtp.google.com

Google Workspacereceives its email

TLS

uff.br

Let's Encryptissued its certificate

DNS Records

A 1

200.20.0.21

MX 1

1smtp.google.com

TXT 4

google-site-verification=jjGFW2iNtxZrIc1DSjgTEVtzON6Je2B2YgjKVRYVLUo
_globalsign-domain-verification=GUlYo-9I9IKGhhNMdAYA22to6LKKbMJhwtg1kJw7gf
v=spf1 -all
v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; rua=mailto:postmaster@uff.br; pct=100

NS 3

server.uff.br
guanabara.rederio.br
marlin.telecom.uff.br

SOA 1

server.uff.br postmaster.uff.br

TLS Certificates (3)

Common Name	Issuer	Expires
`uff.br`	C=US, O=Let's Encrypt, CN=YR1	Mon, 05 Oct 2026 19:53:48 +0000
`YR1`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

www.uff.br

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 uff.br. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_c46da73d7e35e216
Output Hash: 5f81057def85f7af555e4d795fed316899e394fae840ff96d8ddf8c6fbb10656
Signature: ed25519:a83aa494d9097a68fbe639aa0d63d6ca903dd16f90842eb30448a92a8279624951755b5607174ccd25b8147c34937a3a0d1a1f54b2859d8fea089552eb38d904
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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