usd.edu

Observed 2026-07-14T03:48:46.115Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also usesGoogle Search Console

8 subdomains · 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

13.107.226.6913.107.253.69

Cloudflareserves the site

ns4-09.azure-dns.infons1-09.azure-dns.comns3-09.azure-dns.orgns2-09.azure-dns.net

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

usd-edu.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time5344 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

13.107.226.69
13.107.253.69

MX 1

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

TXT 14

SFMC-M67Y6t9HhKqWii5qNvzgCt5bg7KjReLsgERbjNiY
SFMC-WNrbabQJhi1DvtvZyi6xveW5R3LlqaULKSbT_jd7
v=spf1 include:_u.usd.edu._spf.smart.ondmarc.com ~all
_m3jrqc6m785dyv1wrtug4kyhz7rq4g8
google-site-verification=q_M8VsXxRT369xnDqNlSTTN7Ka5TCEvafxbq2NVkIXw
d365mktkey=oXShFbkrkugbeeRnCvy3lXF2qP6jvLaDGNwnt342CF4x
809C84473BE49866FB9C9F5851B9A157
SFMC-OM0C-n-8oH9jkolZ7G6iZvabb5j8MURy2-IZEeSP
SFMC-XAWIjMksXYBRhI2Ch23A2QFx-H0LiVf7SHUS9L8k
d365mktkey=9rlocxOSVvKFUUmEPHGpT2NiSpYznftB86hqekkfXBMx

NS 4

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

SOA 1

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

CAA 11

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

TLS Certificates (0)

None.

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 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: b9a523cb-1158-49ae-80d5-497a63ffac42
Output Hash: 57aa5c477bcdebb7d7b3f7441e99a087b9c787bcf5657365bf8c9974eb83b686
Signature: ed25519:7b1b53c3117a21de82dd40fabde7b4f64867a80afef237e9f811549db85f76870e2e98c9d406c86152c475242c52a98ee7362874ceec75dd466c1c76e5579703
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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