uff.br
Observed 2026-07-13T04:23:43.972Z (1h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Also usesGoogle Search Console
14 subdomains · 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
Cloudflareserves the site
NS
server.uff.brguanabara.rederio.brmarlin.telecom.uff.br
uff.br + rederio.branswers its DNS
MX
smtp.google.com
Google Workspacereceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.uff.br/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time1394 ms
DNS resolutionNOERROR
Redirect chain
https://www.uff.br/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
200.20.0.21
MX 1
1smtp.google.com
TXT 4
google-site-verification=jjGFW2iNtxZrIc1DSjgTEVtzON6Je2B2YgjKVRYVLUo_globalsign-domain-verification=GUlYo-9I9IKGhhNMdAYA22to6LKKbMJhwtg1kJw7gfv=spf1 -allv=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; rua=mailto:postmaster@uff.br; pct=100
NS 3
server.uff.brguanabara.rederio.brmarlin.telecom.uff.br
SOA 1
server.uff.br postmaster.uff.br
TLS Certificates (0)
None.
Subdomains (14)
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 receiptEd25519 Receipt
- Receipt ID
6289030c-c487-471f-a052-5405744f86b0- Output Hash
1198378f1b74db9b0194565231beeca3ea34adc90383f9ca66a7edf47cc7faab- Signature
ed25519:af30b5f87f585eff62772208b2474eb41cbe5dccccd9d610c857654ad37bec3b1a2ad9b35afd8c538f275d1e07a1e92620177aadc7024dc19a7cf470eba8620f- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast