duke.edu

Observed 2026-07-13T00:06:52.798454676+00:00 (6h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onDuke University

Email byMicrosoft 365

Secured byInternet2

Also usesGoogle Search Console1PasswordAtlassianFacebook/Meta

1 subdomain · education_expanded

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

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

duke.edu

A / AAAA

152.3.72.243152.3.70.87

Duke Universityserves the site

dns-nc1-01.oit.duke.edudns-auth-02.oit.duke.edudns-auth-01.oit.duke.edu

duke.eduanswers its DNS

duke-edu.mail.protection.outlook.com

Microsoft 365receives its email

TLS

duke.edu

Internet2issued its certificate

DNS Records

A 2

152.3.72.243
152.3.70.87

MX 1

10duke-edu.mail.protection.outlook.com

TXT 57

e2ma-verification=jv3cb
e2ma-verification=tqqfb
adobe-idp-site-verification=76438831-136f-42eb-8467-627bcd13bec6
e2ma-verification=yq0fb
google-site-verification=5TXsU4v41p3-uJbMWepQdYbg8ydDm7pZqZpyL43nBec
google-site-verification=fohuGSMCupMBfLvJ-OqvhaNOUrd4-VJzOA_hUjfM0GQ
e2ma-verification=fu4
iContact1567195
MS=ms29427067
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

NS 3

dns-nc1-01.oit.duke.edu
dns-auth-02.oit.duke.edu
dns-auth-01.oit.duke.edu

SOA 1

dns-auth-01.oit.duke.edu datacom-hostmaster.duke.edu

SRV 3

mra-e-cluster-01.oit.duke.edu:5060 p10
mra-e-cluster-01.oit.duke.edu:5061 p10
mra-e-cluster-01.oit.duke.edu:5269 p10

TLS Certificates (4)

Common Name	Issuer	Expires
`duke.edu`	C=US, O=Internet2, CN=InCommon RSA Server CA 2	Fri, 06 Nov 2026 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
`AAA Certificate Services`	C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services	Sun, 31 Dec 2028 23:59:59 +0000

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID: 1d959a32-c170-46ef-b976-5cb22bfe177c
Output Hash: 803ec8bf2ebf075085b01cfd31c57796c4a857a1af53d9ff525cc22ad1c02014
Signature: ed25519:8d04c4bda321a80f2bbf98fb9bd1300e23c27de3ed69de197d163044b47de15e8cadda4fdfe1c0e0725871c7d4ad633e824e8ac60e3fb552425711307ab0e50b
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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