atc.edu

Observed Aug 2, 2026, 14:13 UTC (8d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of atc.edu was taken 8d ago

atc.edu is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting atc.edu under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch atc.edu Watching a domain needs a DRM3 account. The reading above stays free and public either way.

Verify this receipt yourself + Watch this domain

Up right now

Runs onMicrosoft Corporation

Email byProofpoint

Secured byLet's Encrypt

1 subdomain · tranco

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

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

atc.edu

A / AAAA

40.70.23.38

Microsoft Corporationserves the site

ns1-01.azure-dns.comns2-01.azure-dns.netns3-01.azure-dns.orgns4-01.azure-dns.info

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

mxa-00a31201.gslb.pphosted.commxb-00a31201.gslb.pphosted.com

Proofpointreceives its email

TLS

*.atc.edu

GoDaddy.comissued its certificate

DNS Records

A 1

40.70.23.38

MX 2

10mxa-00a31201.gslb.pphosted.com
10mxb-00a31201.gslb.pphosted.com

TXT 8

mg2eqh02embv3j7dh6ro7fojvf
v=spf1 ip4:199.4.146.0/23 ip4:40.70.23.38 include:salesforce.com include:mh.blackboard.com include:spf.protection.outlook.com include:sendgrid.net include:spf-00a31201.pphosted.com include:amazonses.com -all
v=msv1 t=ca4ccc773309844e9e9f30fae2349a
on9ia7hu38aa2n7ebtvbo5c4ci
30brek6igenjjrln0f404ihphh
ecostruxure-it-verification=93995edc-25f1-4a2a-bbc8-4d0e6916782c
nc23na5eaeljt09s8sne3ep392
sck7brfpukid4g6fv7clo1nj6a

NS 4

ns1-01.azure-dns.com
ns2-01.azure-dns.net
ns3-01.azure-dns.org
ns4-01.azure-dns.info

SOA 1

ns1-01.azure-dns.com azuredns-hostmaster.microsoft.com

DMARC_RECORDS 1

v=DMARC1;p=quarantine

TLS Certificates (2)

Common Name	Issuer	Expires
`*.atc.edu`	C=US, ST=Arizona, L=Scottsdale, O=GoDaddy.com, Inc., 2.5.4.11=http://certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2	Wed, 03 Mar 2027 15:42:33 +0000
`Go Daddy Secure Certificate Authority - G2`	C=US, ST=Arizona, L=Scottsdale, O=GoDaddy.com, Inc., CN=Go Daddy Root Certificate Authority - G2	Sat, 03 May 2031 07:00:00 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID: rcpt_c3541977601c15cd
Output Hash: 667c25837a35e440f55a3b59a11745eadd2c8fe238127be6b1861dd8007687c0
Signature: ed25519:3ef467393bfe4d5534573a0ac86a8a56705c8bb64f86bd407695c5c7d40843db1492467abe21eb822e7b79d47bf7f3074b5e2ca823160d3145d7796ec4314106
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/atc.edu