usd.edu

Observed Jul 21, 2026, 19:21 UTC (1d 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

Runs onCloudflare

Email byMicrosoft 365

Secured byDigiCert

Also usesGoogle Search Console

education_expanded

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

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

usd.edu

A / AAAA

150.171.109.74

Cloudflareserves the site

ns1-09.azure-dns.comns2-09.azure-dns.netns3-09.azure-dns.orgns4-09.azure-dns.info

azure-dns.com + azure-dns.net + moreanswers its DNS

usd-edu.mail.protection.outlook.com

Microsoft 365receives its email

TLS

usd.edu

DigiCert Incissued its certificate

DNS Records

A 1

150.171.109.74

MX 1

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

TXT 14

v=spf1 include:_u.usd.edu._spf.smart.ondmarc.com ~all
SFMC-OM0C-n-8oH9jkolZ7G6iZvabb5j8MURy2-IZEeSP
SFMC-CnnshpWHKDw66JjIjTraMnN9NaDzDWTdmH1Nz1_W
SFMC-XAWIjMksXYBRhI2Ch23A2QFx-H0LiVf7SHUS9L8k
SFMC-WNrbabQJhi1DvtvZyi6xveW5R3LlqaULKSbT_jd7
d365mktkey=oXShFbkrkugbeeRnCvy3lXF2qP6jvLaDGNwnt342CF4x
d365mktkey=9rlocxOSVvKFUUmEPHGpT2NiSpYznftB86hqekkfXBMx
SFMC-M67Y6t9HhKqWii5qNvzgCt5bg7KjReLsgERbjNiY
_m3jrqc6m785dyv1wrtug4kyhz7rq4g8
google-site-verification=q_M8VsXxRT369xnDqNlSTTN7Ka5TCEvafxbq2NVkIXw

NS 4

ns1-09.azure-dns.com
ns2-09.azure-dns.net
ns3-09.azure-dns.org
ns4-09.azure-dns.info

SOA 1

ns1-09.azure-dns.com server.usd.edu

SRV 6

Expressway-E-02.usd.edu:5060 p20
Expressway-E-01.usd.edu:5060 p20
Expressway-E-02.usd.edu:5061 p20
Expressway-E-01.usd.edu:5061 p20
hsc-cups1.usd.local:5222 p0
usd-cup01.usd.edu:5269 p0

CAA 11

issue "godaddy.com"
issue "comodoca.com"
issue "letsencrypt.org"
issue "globalsign.com"
iodef "mailto:abuse@usd.edu"
issue "amazon.com"
issue "amazontrust.com"
issue "awstrust.com"
issue "amazonaws.com"
issue "pki.goog"

TLS Certificates (3)

Common Name	Issuer	Expires
`usd.edu`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=GeoTrust TLS RSA CA G1	Fri, 11 Sep 2026 23:59:59 +0000
`GeoTrust TLS RSA CA G1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Tue, 02 Nov 2027 12:23:37 +0000
`DigiCert Global Root G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Fri, 15 Jan 2038 12:00:00 +0000

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for usd.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_32a35e17e809b159
Output Hash: 8913ab58a075e0c177d602ee41c62bc958804cd487983602b7883ae0cbd2f68b
Signature: ed25519:5cae34fcd1211db865eb4b6a2f67029176bea672a09c77d4741bdd63e723e657bbeb2c0ff04660968840d9c7894b3b4ea6bc35f83eb670fa6dba5b57c0e5d90f
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/usd.edu