usd116.org

Observed Jul 24, 2026, 20:57 UTC (9d 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 · tranco

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

INFRASTRUCTURE MAPwhat usd116.org actually stands on - every host below is a signed observation

usd116.org

A / AAAA

18.233.124.95192.254.233.10154.221.139.169

unattributedserves the site

ns2.illinois.netns1.illinois.net

illinois.netanswers its DNS

ALT1.ASPMX.L.GOOGLE.COMASPMX.L.GOOGLE.COMALT2.ASPMX.L.GOOGLE.COMASPMX2.GOOGLEMAIL.COM+1 more

Google Workspacereceives its email

TLS

usd116.org

Let's Encryptissued its certificate

DNS Records

A 3

18.233.124.95
192.254.233.101
54.221.139.169

MX 5

5ALT1.ASPMX.L.GOOGLE.COM
1ASPMX.L.GOOGLE.COM
5ALT2.ASPMX.L.GOOGLE.COM
10ASPMX2.GOOGLEMAIL.COM
10ASPMX3.GOOGLEMAIL.COM

TXT 5

google-site-verification=vZWOki2lx6K1_1IL1TrjF6DqC1wZEybWqK7o2Ey7CrM
v=spf1 a mx ip4:66.195.143.26 ip4:8.12.72.20 ip4:199.36.164.0/22 include:_spf.google.com include:customerspf.schoolmessenger.com ~all
apple-domain-verification=aEjqMCZj4veRtW9l
MS=20720385B92039AF90559861DFD70353C03081D0
v=DMARC1; p=none; rua=mailto:infrastructure@usd116.org

NS 2

ns2.illinois.net
ns1.illinois.net

SOA 1

ns1.illinois.net DoIT.ICN.RTC7.Illinois.gov

TLS Certificates (4)

Common Name	Issuer	Expires
`usd116.org`	C=US, O=Let's Encrypt, CN=YE1	Wed, 21 Oct 2026 13:08:51 +0000
`YE1`	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 (10)

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 usd116.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/usd116.org">
  <img src="https://domaindrift.io/badge/usd116.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for usd116.org">
</a>

Ed25519 Receipt

Receipt ID: rcpt_be2fe9a85d9f457b
Output Hash: 985ef549f42c4b6d0d5425848c8a490e503193953fb79cb22b51d720bbcab1bd
Signature: ed25519:9559c4d9b9bbe232369bc8649527b28f42da1d0a74dff52111b7e9030e51edfef18f54323a362d5eacb816ae16649daf249af44c1183529945ad46d593151a02
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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