csu.edu

Observed 2026-07-17T12:30:56.238702583+00:00 (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Secured byInternet2

Also usesGoogle Search Console

1 subdomain · education_expanded

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

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

csu.edu

A / AAAA

3.209.26.19334.236.193.19352.73.2.219

Amazonserves the site

cougar1.csu.eduns2.illinois.netns1.illinois.netcougar2.csu.edu

csu.edu + illinois.netanswers its DNS

d226001a.ess.barracudanetworks.comd226001b.ess.barracudanetworks.com

barracudanetworks.comreceives its email

TLS

csu.edu

Internet2issued its certificate

DNS Records

A 3

3.209.26.193
34.236.193.193
52.73.2.219

MX 2

10d226001a.ess.barracudanetworks.com
10d226001b.ess.barracudanetworks.com

TXT 10

google-site-verification=wYcYkOVb7YoFP_mhXVX48UAG3BWmOMajXHtamd2sifo
google-site-verification=bkXlNecLjw0nW80kvVM2cZsdbg32qsANFIjp6t-yEug
google-site-verification=euLVRu88ZWpAEk76hkwBtZbGfnN-v-3iyJkf7MrgO8c
google-site-verification=OQIAb9066NHPww3Ppk557vdRhsPRSkPwtZDVO8b_Ezc
apple-domain-verification=j4uT989liwIUQE1t
36812C230246ED24D8ED602E82FA468F
v=spf1 ip4:209.175.72.0/24 ip4:209.175.73.0/24 ip4:209.175.74.0/24 ip4:209.175.75.0/24 ip4:199.244.78.223/32 ip4:199.244.78.224/32 ip4:68.169.28.165/32 ip4:52.205.115.159/32 include:spf.ess.barracudanetworks.com include:_tuf-spf.touchnet.com include:spf.protection.outlook.com -all
MS=AB21236FA301F05A416C1ACFDE283130490316AD
logmein-verification-code=5ffe457f-38e8-4142-b82c-b13552edc639
v=DMARC1; p=none; fo=1; rua=mailto:rua+csu.edu@dmarc.barracudanetworks.com; ruf=mailto:ruf+csu.edu@dmarc.barracudanetworks.com

NS 4

cougar1.csu.edu
ns2.illinois.net
ns1.illinois.net
cougar2.csu.edu

SOA 1

cougar1.csu.edu postmaster.csu.edu

TLS Certificates (2)

Common Name	Issuer	Expires
`csu.edu`	C=US, O=Internet2, CN=InCommon RSA Server CA 2	Mon, 22 Feb 2027 23:59:59 +0000
`InCommon RSA Server CA 2`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority	Mon, 15 Nov 2032 23:59:59 +0000

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID: c1122832-32e7-4877-8153-248b30d33eb4
Output Hash: bf7ff57cf98f30700512744bcf499cc0ae57616a24ee41adb8d379a3ddd513d4
Signature: ed25519:fc84a70b8f11c4ee05900439f12e13bdd9ace552b5548c2ba5db2ca7f4b2b4d9dabd9884e2d1c168d8fd57dc85181e9ca10b3ca6c70c87489d67bd813252870d
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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