cisa.gov

Observed Jul 18, 2026, 12:07 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAkamai Technologies

Email byProofpoint

Secured byDigiCert

Registered withget.gov

Also usesGoogle Search Console

IPv6 · 1 subdomain · government_expanded

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

INFRASTRUCTURE MAPwhat cisa.gov actually stands on - every host below is a signed observation

cisa.gov

A / AAAA

23.47.17.562600:1408:ec00:28d::3ff92600:1408:ec00:299::3ff9

Akamai Technologiesserves the site

blue.foundationdns.comblue.foundationdns.netblue.foundationdns.org

foundationdns.com + foundationdns.net + moreanswers its DNS

mxa-00376703.gslb.gpphosted.commxb-00376703.gslb.gpphosted.com

Proofpointreceives its email

TLS

www.homelandsecurity.gov

DigiCert Incissued its certificate

DNS Records

A 1

23.47.17.56

AAAA 2

2600:1408:ec00:28d::3ff9
2600:1408:ec00:299::3ff9

MX 2

10mxa-00376703.gslb.gpphosted.com
10mxb-00376703.gslb.gpphosted.com

TXT 15

MS=ms36056523
MS=ms41452370
MS=ms53160703
pL0QIhJMs23KMmvUBrrneOoXtAFoIQ
_e01yoinuk3n6xrtnc8q3m9bdjyihdd7
_rr8gice4wv589e4uxop5zqhh6gbqh32
_tufdw17aa2wht723upz8w56htpvpgkw
f188eb27-a746-4aa8-b160-eb68b0aab05d
google-site-verification=BNRBfY90BM54Mf_pgL4Eg07IkwbGvq5nsdZCOYadDlM
google-site-verification=wsLVyeZYgv0NLikdmfm2m3XPP-986Ylo8XxUkrjIOvA

NS 3

blue.foundationdns.com
blue.foundationdns.net
blue.foundationdns.org

SOA 1

blue.foundationdns.com dns.cloudflare.com

TLS Certificates (2)

Common Name	Issuer	Expires
`www.homelandsecurity.gov`	C=US, O=DigiCert Inc, CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1	Tue, 22 Sep 2026 23:59:59 +0000
`DigiCert Global G3 TLS ECC SHA384 2020 CA1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G3	Sun, 13 Apr 2031 23:59:59 +0000

Subdomains (1)

www.cisa.gov

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 cisa.gov. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: b4d7f46f-64fe-4f4b-8d2e-134bd10a6f88
Output Hash: c445e61024893b739e9088f8cdd4b78ecc79821845763a64c6778ddc9aa74e50
Signature: ed25519:42317e1dfd1ce61ee9eafae182a1ed740ad201899263a0d44d12b1aea24498c059208fc0b014354f81672d32b74e83bb91c14e8bb249a82afe0cd0666c07d503
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/cisa.gov