ustabuca.edu.co
Observed Aug 2, 2026, 11:32 UTC (22h 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.
Not responding
Email byMicrosoft 365
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ustabuca.edu.co actually stands on - every host below is a signed observation
ustabuca.edu.co
NS
calvin.ustabuca.edu.co
edu.coanswers its DNS
MX
ustabuca-edu-co.mail.protection.outlook.com
Microsoft 365receives its email
DNS Records
MX 1
0ustabuca-edu-co.mail.protection.outlook.com
TXT 4
google-site-verification=6fPgK-iH-T7oX37WGj4PF2cwtxei8YRp0enX8oWFdWAv=spf1 a include:spf.protection.outlook.com include:_spf.embluemail.com ~allMS=ms93190604sophos-domain-verification=6cc614032419c262a5d2ba5e0b76f14a66678ad3476b310573d9d09d9e5b837e
NS 1
calvin.ustabuca.edu.co
SOA 1
calvin.ustabuca.edu.co admin.red.ustabuca.edu.co
DMARC_RECORDS 1
v=DMARC1; p=none; rua=mailto:postmaster@ustabuca.edu.co,tecnico.tic03@ustabuca.edu.co
TLS Certificates (0)
None.
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 receiptEd25519 Receipt
- Receipt ID
rcpt_dc596407c9773a86- Output Hash
7372bc0f64247f1a771fd2628979b3e8d89dc579e5c5cca35cf777000f95dfdc- Signature
ed25519:f57adc73148401ce6c4d6edd7b9266d657553b81d7ef2b1f54289a31a604dddd93cf26594fd5f00148ac7898ceb3bd6fd8d0865d4b91cedbd2908571f58a5a06- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast