usdn.org

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 Workspace

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 usdn.org actually stands on - every host below is a signed observation

usdn.org

A / AAAA

34.202.75.199

unattributedserves the site

ns3.spinuhost.comns2.spinuhost.comns1.spinuhost.com

spinuhost.comanswers its DNS

alt2.aspmx.l.google.comaspmx3.googlemail.comalt1.aspmx.l.google.comaspmx2.googlemail.com+1 more

Google Workspacereceives its email

TLS

usdn.org

Let's Encryptissued its certificate

DNS Records

A 1

34.202.75.199

MX 5

5alt2.aspmx.l.google.com
10aspmx3.googlemail.com
5alt1.aspmx.l.google.com
10aspmx2.googlemail.com
1aspmx.l.google.com

TXT 5

google-site-verification=JOjgg6u7SojdS1rCj4ZIDfo_8Lv9Ua2SN7bDv1AVMNw
v=spf1 include:_spf.google.com include:spf.mandrillapp.com include:_spf.createsend.com include:_spf.alchemer.com ?all
google-site-verification=eWMyzP5XvyoQ9diHmpK0BhNh0hxxBP7PUeckNbSKSMU
google-site-verification=7morV7Bsutkywj0J_fOxdoNOrLQpMv78X-jc7TJtvng
v=DMARC1; p=none;

NS 3

ns3.spinuhost.com
ns2.spinuhost.com
ns1.spinuhost.com

SOA 1

ns1.spinuhost.com noc.bayshoresolutions.com

TLS Certificates (3)

Common Name	Issuer	Expires
`usdn.org`	C=US, O=Let's Encrypt, CN=YR2	Fri, 09 Oct 2026 18:10:41 +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 (1)

www.usdn.org

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 usdn.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_9dcbc6cbdd66f3cc
Output Hash: 33ded48158a35fe860885f9c3359b5b5f51754856b0aef78f26537eefbbb6900
Signature: ed25519:2bf89061ced0920574aeda6b0d864973260c28fdc7c35a108c9fca711e8b00279f5312254b555117153b438b3c24486d7aa53e33a4db250c55e907c87996350c
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/usdn.org