cuny.edu

Observed Jul 22, 2026, 13:03 UTC (17h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byProofpoint

Also usesGoogle Search Console

7 subdomains · education_expanded

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

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

cuny.edu

A / AAAA

128.228.254.200

Cloudflareserves the site

harlem.cis.cuny.eduacme.ucc.cuny.eduns4.level3.netlavinia.cis.cuny.edu+3 more

cuny.edu + level3.net + moreanswers its DNS

mxa-00011d01.gslb.pphosted.commxb-00011d01.gslb.pphosted.com

Proofpointreceives its email

HTTPS probe

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

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time4924 ms

DNS resolutionNOERROR

Redirect chain

https://www.cuny.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

128.228.254.200

MX 2

10mxa-00011d01.gslb.pphosted.com
10mxb-00011d01.gslb.pphosted.com

TXT 17

MS=ms38633672
airtable-verification=a0cabfdbd213cb09c30dc58840e15a00
duo_sso_verification=eK3Sdj1sDZNpX4gF6YU0JujwRuGEAJ0pAQeiux6MBGrXFA00XQ7d1GgCMCKPJiiq
ebacpv7jrfvc0mkn6bj73jus1u
cisco-ci-domain-verification=55748314683236f7f75eb5db39c6d75e1a7c007102bbdb38121781a99c49effc
_ajdf6x21up5oyeudymw3dez1igxzxp1
ReleaseWLIDNamespace=true
apple-domain-verification=6ewooW8KlycMTlpN
google-site-verification=mU3QrvBZTAEi8pVAU1H8r6qYeWLMh6EkHFoAR7XsgBs
zone-ownership-verification-931446c350c61d4e45ea4083fe33be715341be8713c84eff1e09930c13ca4d86

NS 7

harlem.cis.cuny.edu
acme.ucc.cuny.edu
ns4.level3.net
lavinia.cis.cuny.edu
ns3.level3.net
hudson.cis.cuny.edu
ext-ns1.columbia.edu

SOA 1

acme.ucc.cuny.edu hostmaster.acme.ucc.cuny.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 cuny.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_41ddfd4eb0967ab9
Output Hash: d02557dcf6508315c2f6fd3d8742070b867382f08d4b6571270e4b1b5938fa78
Signature: ed25519:d1d431d51bae0f662f4a59d36387d949fd3036ebed2b06ef39ed29ae50239a598489bdf33c22b41c6246909159a8d62e6a00943e46ff8f9eba7cd0086455ae0b
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

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