udacity.com

Observed 2026-07-13T00:04:23.487057999+00:00 (14h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byProofpoint

Secured byAmazon

Registered withCSC Corporate Domains, Inc.

Also usesAtlassianFacebook/MetaGoogle Search ConsoleHubSpot

education

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

INFRASTRUCTURE MAPwhat udacity.com actually stands on - every host below is a signed observation

udacity.com

A / AAAA

108.138.85.41108.138.85.58108.138.85.78108.138.85.52

Cloudflareserves the site

ns-1014.awsdns-62.netns-1109.awsdns-10.orgns-13.awsdns-01.comns-1549.awsdns-01.co.uk

awsdns-62.net + awsdns-10.org + moreanswers its DNS

mxa-00593801.gslb.pphosted.commxb-00593801.gslb.pphosted.com

Proofpointreceives its email

TLS

*.udacity.com

Amazonissued its certificate

DNS Records

A 4

108.138.85.41
108.138.85.58
108.138.85.78
108.138.85.52

MX 2

10mxa-00593801.gslb.pphosted.com
10mxb-00593801.gslb.pphosted.com

TXT 10

apple-domain-verification=iaobRRgsJ5xUkcuj
atlassian-domain-verification=59aeShSTbEvs7cB33k4Wsvath8fOirTAy79UnAbOloto0AyhJb41hHFK8SGb8zx
atlassian-domain-verification=mBjfUMIIMEpsVsE5wql1jKvzxVpCWKZwpnSWFbY51pnIrp5nSd+8xJn4GKhfHK7j
atlassian-sending-domain-verification=4a498916-8f31-4a42-b4ec-758ee24b79e4
cursor-domain-verification-7zn380=ChGiB1Fhp14asve0cCXYyhxFn
facebook-domain-verification=q0sgl66mvrtj3ivlf1s98bn6gxvii2
google-site-verification=FJqQiq8r-ExkN9kiVDy44SL2wkm6VS8zka0HUkunGME
status-page-domain-verification=y08j3wqb2sw9
v=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com include:mktomail.com include:_spf.salesforce.com include:244199112.spf08.hubspotemail.net ip4:205.220.165.99 ip4:205.220.177.99 -all
v=DMARC1;p=reject;fo=1;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

NS 4

ns-1014.awsdns-62.net
ns-1109.awsdns-10.org
ns-13.awsdns-01.com
ns-1549.awsdns-01.co.uk

SOA 1

ns-1549.awsdns-01.co.uk awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`*.udacity.com`	C=US, O=Amazon, CN=Amazon RSA 2048 M04	Thu, 17 Sep 2026 23:59:59 +0000
`Amazon RSA 2048 M04`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:26:35 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +0000

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 udacity.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: bc9f3619-db7b-4eca-a3e9-9e5ab3d7a703
Output Hash: 6679ab9435f6ec4ca70db12070bf696728c6c49a6dc2374adb4fbf1ba9f14f97
Signature: ed25519:e8d4879edfd97f7046156be025ba79478b9692ce8063fa65dffec1ff630318f73eff36c410ad1b5a3f6bab34627e700bd3b4350079cb109bc026372dc0497d01
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/udacity.com