cu.edu

Observed 2026-07-14T03:42:14.261Z (11m ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also uses1PasswordGoogle Search ConsoleFacebook/Meta

IPv6 · 10 subdomains · push_legacy

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

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

cu.edu

A / AAAA

23.185.0.32620:12a:8001::32620:12a:8000::3

Cloudflareserves the site

ns9.cu.eduns12.cu.eduns13.cu.eduns11.cu.edu+1 more

cu.eduanswers its DNS

cu-edu.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.cu.edu/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time186 ms

DNS resolutionNOERROR

Redirect chain

https://www.cu.edu/

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

DNS Records

A 1

23.185.0.3

AAAA 2

2620:12a:8001::3
2620:12a:8000::3

MX 1

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

TXT 14

apple-domain-verification=BSVxaFpSdcRib9W6
cXbeJ4UDJBg+cxayxIvAK7sNlob/rhFmsvARSfdngBDvXzA9gnPBaF1leueKYuSy6wdUw8rtssKey/GXMolhiQ==
SFMC-xe9G0OU862W2jbGpqi9eMwAxsIVjt3WpKzQoRxgy
1password-site-verification=HUTGTY3IQ5CGFBFFZSVPDZTH7Y
_globalsign-domain-verification=HhVeiSKIzpErKs0wHEAx0o32Z0civrS6plrUOt4M-B
v=spf1 redirect=cu.edu.on.autospf.email
google-site-verification=TvCMRGZn8yRSf8fjN4KGTGsSIOheS1uAX4kNvtjQBcA
MS=35F66365F292BD92898C1F9E92E0B839769891F8
facebook-domain-verification=hk6531shxfomy8mnyv13ugtq5ekonl
openai-domain-verification=dv-9jI2YpQaR9499Q0ulBsMn5CG

NS 5

ns9.cu.edu
ns12.cu.edu
ns13.cu.edu
ns11.cu.edu
ns10.cu.edu

SOA 1

ns9.cu.edu ecs-infrastructure.cu.edu

TLS Certificates (0)

None.

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

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

Ed25519 Receipt

Receipt ID: a551d0de-6099-4f5f-bbcc-44904d2a34f4
Output Hash: 79bbb21f9cec4e0cfdf039b22eeed2e862274a2df8a72507d08045d5d1f40434
Signature: ed25519:f2703f5843d09e971c45c2e42e9b3d36158b88e37a3c9e1d7a9096fd9f4693434c71fb59e29a62e402a77f69911d77ae5e7411e092a513b00f6814f5ca24ad0f
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

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