isc2.org

Observed Jul 22, 2026, 12:28 UTC (15h 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 byMimecast

Registered withGoDaddy.com, LLC

Also usesDocuSignZoomFigmaGoogle Search ConsoleStripeAtlassian

8 subdomains · cybersecurity_expanded

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

INFRASTRUCTURE MAPwhat isc2.org actually stands on - every host below is a signed observation

isc2.org

A / AAAA

159.60.133.133

Cloudflareserves the site

ns3-01.azure-dns.orgns1-01.azure-dns.comns4-01.azure-dns.infons2-01.azure-dns.net

azure-dns.org + azure-dns.com + moreanswers its DNS

us-smtp-inbound-2.mimecast.comus-smtp-inbound-1.mimecast.com

Mimecastreceives its email

HTTPS probe

redirect Redirecting (3xx) 308 → https://www.isc2.org/

HTTP status308

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time218 ms

DNS resolutionNOERROR

Redirect chain

https://www.isc2.org/

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

DNS Records

A 1

159.60.133.133

MX 2

10us-smtp-inbound-2.mimecast.com
10us-smtp-inbound-1.mimecast.com

TXT 29

openai-domain-verification=dv-9pGy7tGqkDvqliN47BCvCRgX
MS=ms94814359
docusign=d05b3fca-a664-40b9-977e-cadae6a31d77
v=spf1 include:spf2.isc2.org -all
jamf-site-verification=uB26Bo-X0SHn41RC9qaaNA
ZOOM_verify_xnK5UBuiSdu3dyrIAFKMvw
48b1bd9fdffc10b0a44e22c555c09d867b3c3a2b28cfb68a74628af3152bd447
iContact1779289
mandrill_verify.7YEnQjoBRGgqs4H4OjOZ_g
sqtjs1bvnl5xdg7ch7s0z9szrnq2n8fp

NS 4

ns3-01.azure-dns.org
ns1-01.azure-dns.com
ns4-01.azure-dns.info
ns2-01.azure-dns.net

SOA 1

ns1-01.azure-dns.com helpdesk.isc2.org

TLS Certificates (0)

None.

Subdomains (8)

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 isc2.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/isc2.org">
  <img src="https://domaindrift.io/badge/isc2.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for isc2.org">
</a>

Ed25519 Receipt

Receipt ID: rcpt_8075a9643bd78ee0
Output Hash: 1d12322d236b993d018b009f792e623a31217aead7dd0b25cfe84483fa8c325b
Signature: ed25519:b14cad8a96db66aecd63628cc5d8ec040a0f1fa0f3dc2f88353d5d2dad4b04ac4c1d196c053b61fb61868d4b5494797f1fcab5cea92f7e4207685a67fcfcbd0b
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/isc2.org