caltech.edu

Observed Jul 18, 2026, 12:02 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onAmazon

Email byAmazon SES

Also usesZoom1Password

institutions

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

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

caltech.edu

A / AAAA

52.26.125.194

Amazonserves the site

ns0090.secondary.cloudflare.comns0239.secondary.cloudflare.com

cloudflare.comanswers its DNS

mx1.caltech.iphmx.commx2.caltech.iphmx.com

Amazon SESreceives its email

DNS Records

A 1

52.26.125.194

MX 2

10mx1.caltech.iphmx.com
10mx2.caltech.iphmx.com

TXT 14

MS=ms43712753
iContact1389932
ZOOM_verify_a-Gb5-aqQgygEiKsnho63w
apple-domain-verification=KD7b3wNXe76BHRAV
autodesk-domain-verification=TtWEzwdFn86i9o8NX_8R
1password-site-verification=VRLN67QMNNEPXIIREL6TDZABF4
amazonses:CBaUu/J2wBFtHuO9isUzHAXTnIWcN5RyPUBvggu7SNE=
amazonses:X9y0RbFXXvxu3ft83xg2e+YV++OUePTUSeCOdB3Chjg=
openai-domain-verification=dv-8LkNkbqCFWsyOdGQbgXugk2j
anthropic-domain-verification-rw8528=rFwrZAPawzCVNGD318e9zzavQ

NS 2

ns0090.secondary.cloudflare.com
ns0239.secondary.cloudflare.com

SOA 1

ns0090.secondary.cloudflare.com hostmaster.caltech.edu

SRV 2

autodiscover.outlook.com:443 p0
outlookweb.caltech.edu:445 p0

TLS Certificates (0)

None.

Subdomains (0)

None observed.

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

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

Ed25519 Receipt

Receipt ID: b3b1ddcd-9c58-43fc-997b-4d5fb819915b
Output Hash: f42d5bc86c97d25583df7e889916b53c433e11ea72a89528e8366ed584df01a1
Signature: ed25519:897d76fb96e92a6373117e27bcd33851069988455c0bbe7db4b19db998d66cecf84639ec388ab8474219bf3529b7aaeae61b9400e9cab6a8e030ceef5279d206
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/caltech.edu