usd250.org

Observed Jul 27, 2026, 18:37 UTC (5d 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 byGoogle Workspace

Also usesFacebook/Meta

tranco

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

INFRASTRUCTURE MAPwhat usd250.org actually stands on - every host below is a signed observation

usd250.org

A / AAAA

104.17.71.73

Cloudflareserves the site

nic.kanren.netdragon.usd250.orgkic.kanren.net

kanren.net + usd250.organswers its DNS

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

Google Workspacereceives its email

TLS

usd250.org

Let's Encryptissued its certificate

DNS Records

A 1

104.17.71.73

MX 5

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

TXT 6

adobe-idp-site-verification=35d03f44da109e5e589445f2c35bb5581d4c5852f7ed1a2b9a4a6f255b2301e7
0ffd1030948a2e9c4f7b4817fc5eec
facebook-domain-verfication=hmi0tofscgzieedwn3eov8dxl2no3w
MS=ms56175598
v=spf1 ip4:70.36.20.116 ip4:67.23.62.36 ip4:67.23.61.36 ip4:208.64.181.100 ip4:205.237.106.3 ip4:209.85.217.42 include:_spf.google.com include:swiftreach.com include:customerspf.schoolmessenger.com ~all
apple-domain-verification=mVx2INAS8NtU9DoO

NS 3

nic.kanren.net
dragon.usd250.org
kic.kanren.net

SOA 1

dragon.usd250.org root.usd250.org

TLS Certificates (4)

Common Name	Issuer	Expires
`usd250.org`	C=US, O=Let's Encrypt, CN=YE1	Wed, 09 Sep 2026 06:34:23 +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 (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 usd250.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/usd250.org">
  <img src="https://domaindrift.io/badge/usd250.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for usd250.org">
</a>

Ed25519 Receipt

Receipt ID: rcpt_db0532fc08faaa63
Output Hash: 625e0d2f617ca3cc26856fddcc2dfd77d76369c48fdfdb4565a02b6722d75cb9
Signature: ed25519:d878b80d6fb92299d3fdbf9ebb97aafaa084589fc49930ea7461aa2f7da3b4e79340e8d57edb16904cf838d1835b964c82a16968545a9e397aec9896f0173706
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/usd250.org