ust.edu
Observed Jul 25, 2026, 15:02 UTC (8d 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.
Up right now
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search Console
8 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ust.edu actually stands on - every host below is a signed observation
ust.edu
A / AAAA
185.93.165.69
unattributedserves the site
NS
pdns06.domaincontrol.compdns05.domaincontrol.com
domaincontrol.comanswers its DNS
MX
aspmx.l.google.comaspmx2.googlemail.comalt2.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
cpcalendars.ust.edu
Let's Encryptissued its certificate
DNS Records
A 1
185.93.165.69
MX 5
10aspmx.l.google.com40aspmx2.googlemail.com30alt2.aspmx.l.google.com20alt1.aspmx.l.google.com50aspmx3.googlemail.com
TXT 12
1ceaaraqdf92ap7e65l1k48hnkhevommdu2cqtq9qteibotl8vcb2u4dc62dm4sfr618hrrpojf5oo1k9d1fb3n0ov0j732bvc9h7jkMS=F9FB967BBDBE26E9009ADDC28B748BFA092546BFv=spf1 include:_spf.google.com ~allgoogle-site-verification=ADyW4L3PE0MxZcVFUEJ8EaVrM48BIDIujTO5BULWR9IGOOGLE-SITE-VERIFICATION=UZIY4T6KZLZCBTSUJYMCIJACIPLMOK5PU9T3RGXERVSsdor56s3p53psshs26ioijfkb7eh1878ceio1mv015ns31bl7tan
NS 2
pdns06.domaincontrol.compdns05.domaincontrol.com
SOA 1
pdns05.domaincontrol.com dns.jomax.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
cpcalendars.ust.edu |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 30 Sep 2026 20:20:08 +0000 |
YR2 |
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 (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 receiptEd25519 Receipt
- Receipt ID
rcpt_343504d444c5d971- Output Hash
ec2a91bd1c2d337897dd82a5520669800bd950a7f9f7bb943debe2408a28c31f- Signature
ed25519:ccc7a0b0d16c9fa9e3bdb843d5b4cbb4b792dea867e8f7fb36c0597a076988404e402b0bd171733fc071b62968f77a3dbd12429d96c41ff5c014b447922d6b0c- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast