purdue.edu

Observed 2026-07-15T09:26:30.818Z (21h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also usesFacebook/MetaGoogle Search ConsoleAtlassian

7 subdomains · education_expanded

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

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

purdue.edu

A / AAAA

128.210.7.200

Cloudflareserves the site

ns4.purdue.eduns3.purdue.eduns5.purdue.edu

purdue.eduanswers its DNS

purdue-edu.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time598 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

128.210.7.200

MX 1

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

TXT 30

apple-domain-verification=PR5U9BqX66R0APG8
oysmqwNak8YGUW3sLWwJg1feIr+RzjS3GAjdI6bSHjLGftS6HmMqoAUagGXLrjogVk4ptcEPz+5oyrWQeCkXKw==
00DE0000000bl8X=1TBRd00000009GD
canva-site-verification=_ZOGZ-ChIB3VnGbHx8zCLg
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all
facebook-domain-verification=izc7cwx7c6ynlbzt3bvcasz2natro9
coursera-domain-verification=7YtVTrT8qPN5I6TM4j0JTlG1J8oUVTHHIirDRrvnyBZsqTD5suAZAxEC9V71BoAL
adobe-idp-site-verification=82aaf4b4-e1ab-4a7d-bea2-10f5820faec9
google-site-verification=en6dTnGVvW0yFBlNPxKv5aSBsJNG9XTRlJLx5xzkEGE
n98pbk2retfsg11ronqr8158mu

NS 3

ns4.purdue.edu
ns3.purdue.edu
ns5.purdue.edu

SOA 1

ns3.purdue.edu hostmaster.purdue.edu

TLS Certificates (0)

None.

Subdomains (7)

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

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

Ed25519 Receipt

Receipt ID: 2eb8c111-ef86-416f-a135-b015911fed5c
Output Hash: 262e97548bc3fae6d156bdf88451c079292019e6aaaa075ac8208c6a60749102
Signature: ed25519:a17b54d80aa364878e1ec5adfa6ae27c5132a675a2332c71bd7a33b377292adac01ba8d2cd03b42551a1380670b26563bf3a93607d4daefe25279542232f960e
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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