siu.edu

Observed Jul 18, 2026, 12:17 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onSouthern Illinois University Carbondale

Email byMicrosoft 365

Secured byInternet2

10 subdomains · education_expanded

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

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

siu.edu

A / AAAA

131.230.21.130

Southern Illinois University Carbondaleserves the site

ns3.siu.eduns5.siu.eduns1.siu.eduns4.siu.edu

siu.eduanswers its DNS

siu-edu.mail.protection.outlook.com

Microsoft 365receives its email

TLS

siu.edu

Internet2issued its certificate

DNS Records

A 1

131.230.21.130

MX 1

0siu-edu.mail.protection.outlook.com

TXT 10

e2ma-verification=19bbb
apple-domain-verification=wLe0m12b2Z4EunYa
v=spf1 a mx ip4:131.230.0.0/16 include:spf.protection.outlook.com include:sendgrid.net include:a._spf.brightspace.com ~all
apple-domain-verification=UWcwBIUNhBK-htVraea_MSmuyduELwRhhWx2MFJw2OE
HoxTnhzvBYZ82oYiTjotA/8BUKC/NJEHjQL5Yvtwo15uaVyH+vsDHa5xmjKxnwtDtJloUn2AHIlLstIoCDWMLg==
e2ma-verification=702eb
MS=ms20230666
adobe-idp-site-verification=8e699fe7391a61d469bd007a3295c397905fb566b98db27d355d3483eac0a86e
v=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc-rua@siu.edu,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc-ruf@siu.edu
v=BIMI1; l=https://siu.edu/bimi/southern_illinois_university_201859934.svg; a=https://siu.edu/bimi/southern_illinois_university_201859934.pem

NS 4

ns3.siu.edu
ns5.siu.edu
ns1.siu.edu
ns4.siu.edu

SOA 1

ns1.siu.edu network-engineering.siu.edu

SRV 4

sip.siu.edu:5061 p0
xmpp2.siu.edu:5269 p10
xmpp.siu.edu:5269 p1
mail.siu.edu:443 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`siu.edu`	C=US, O=Internet2, CN=InCommon RSA Server CA 2	Thu, 07 Jan 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
`USERTrust RSA Certification Authority`	C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services	Sun, 31 Dec 2028 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 siu.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: dd3a42a8-acba-4e63-8b8c-d3e30c19a20a
Output Hash: 9332fd4b7ed32aacdd032a258f3028ba07f4b6ac465d5b0263f08b95002c01e7
Signature: ed25519:eadf8692536dd7cd259233fce33dd8b263638354186036081074aaa785f23e225573476f04dc280ec46d2fe4136a0a8eb772243c8b06844e940fbf84438e0604
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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