us.edu

Observed Jul 26, 2026, 08:54 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 byGoogle (SPF sender)

Secured byLet's Encrypt

Also usesGoogle Search Console

1 subdomain · majestic

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

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

us.edu

A / AAAA

54.209.77.18

unattributedserves the site

pdns02.domaincontrol.compdns01.domaincontrol.com

domaincontrol.comanswers its DNS

d186841b.ess.barracudanetworks.comd186841a.ess.barracudanetworks.com

Google (SPF sender)receives its email

TLS

us.edu

Let's Encryptissued its certificate

DNS Records

A 1

54.209.77.18

MX 2

20d186841b.ess.barracudanetworks.com
10d186841a.ess.barracudanetworks.com

TXT 19

bf2krc7ek88uc6h5ouiq5l13c2
9cksaa0o6v5pspu368qibt0vrd
adobe-idp-site-verification=5378e4d06ec673e97a1d5a1c90146c07e738f61e28f5e5ded2ac6c7402f4a953
apple-domain-verification=Rm2rV4dEPcIcd3OF
apple-domain-verification=yVazT9OApvnnllGA
apple-domain-verification=d1VVJMfTN4nLVevf
gcjj00kd9a558v210rg4gau5qh
b+jexuvontAnnBdaTsXIrV+HeJuZDmKwaJnhvi1mlYkm7Rm0gzCRe5ssxfH1sxjH522Y1MA5te7Yhsy+yZBqzw==
google-site-verification=ATCStSyDlKTpFWoJx_fG3L8iXq0maCZSniOkzEJJOuM
o09i8bfqlqjdccv5s87h1q245c

NS 2

pdns02.domaincontrol.com
pdns01.domaincontrol.com

SOA 1

pdns01.domaincontrol.com dns.jomax.net

SRV 1

exchange.us.edu:443 p0

TLS Certificates (4)

Common Name	Issuer	Expires
`us.edu`	C=US, O=Let's Encrypt, CN=YE2	Sun, 20 Sep 2026 02:14:12 +0000
`YE2`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

www.us.edu

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

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

Ed25519 Receipt

Receipt ID: rcpt_7928956224a99a6e
Output Hash: 61bfa645f97440c464f2ac42f26562024b193f420882fe76a7a175ba34c13267
Signature: ed25519:e824aa85ff2ae3598e007f93bc8c5fd9d71881416b2c2a29a916a4705b27bcb5c6f244835d620ddbbaf2ec1933d197fcad4cfd2ddb18c71b17a675def9f5ae05
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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