rio.edu

Observed Jul 25, 2026, 10:49 UTC (7d 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

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · 6 subdomains · tranco

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

INFRASTRUCTURE MAPwhat rio.edu actually stands on - every host below is a signed observation

rio.edu

A / AAAA

23.185.0.12620:12a:8001::12620:12a:8000::1

2620serves the site

hangingrock.urg.eduns2.rio.edurockcamp.urg.eduns1.rio.edu

urg.edu + rio.eduanswers its DNS

rio-edu.mail.protection.outlook.com

Microsoft 365receives its email

TLS

rio.edu

Let's Encryptissued its certificate

DNS Records

A 1

23.185.0.1

AAAA 2

2620:12a:8001::1
2620:12a:8000::1

MX 1

0rio-edu.mail.protection.outlook.com

TXT 8

adobe-idp-site-verification=9d3904a7578226a54d459c61115cea6a4ea03da4c34a8be4f1cba8b72d650af5
v=spf1 ip4:206.244.166.0/24 ip4:206.21.59.86 ip4:216.17.113.168 ip4:216.147.212.20/30 ip4:64.74.237.230/31 include:outboundmail.blackbaud.net include:spf-na.exlibrisgroup.com include:spf.protection.outlook.com include:secure.giftlegacy.com mx ~all
d365mktkey=PwJTuKyhXFOPrZWwj2LPBIsnHxKS5IHWTPgohUTQZ44x
google-site-verification=NNyTExYaa3kEg8Cgoogle-site-verification=NNyTExYaa3kEg8CwexNTTlA35953i4YJeBYwbKrdtC8wexNTTlA35953i4YJeBYwbKrdtC8
google-site-verification=xC0hbpOfxMAMECV70CkNcxPEDxdB4MLNrGSjFKP_umk
google-site-verification=at-516l-uX07SP-IAGi4MF769rNJqfE5bmeaKzFoSWU
d365mktkey=k9dxUnI66upbza1l4LcnkRVj5yFxOwxQDiTYVDvjH2Ix
v=DMARC1; p=reject; rua=mailto:dmarc@rio.edu; ruf=mailto:dmarc@rio.edu; sp=none; fo=1;

NS 4

hangingrock.urg.edu
ns2.rio.edu
rockcamp.urg.edu
ns1.rio.edu

SOA 1

rockcamp.urg.edu netadmin.rio.edu

TLS Certificates (3)

Common Name	Issuer	Expires
`rio.edu`	C=US, O=Let's Encrypt, CN=YR2	Tue, 15 Sep 2026 13:56:35 +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 (6)

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 rio.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_74a93243651eace5
Output Hash: ac3ce1557c92e1331e6c4041c89a72d82d9da783d8a43af30b0d04c90600b073
Signature: ed25519:054822b3e95317be04be2e0c266a090973d7b44d0f0ba477fbbdba1871cfc2b748875167ef0ebb869af455349e908878c66ce061dac1229307b8596c9aafe104
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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