nist.gov
Observed Jul 24, 2026, 17:43 UTC (7h 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.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Secured byLet's Encrypt
Registered withget.gov
Also usesGoogle Search ConsoleAtlassian
IPv6 · government_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nist.gov actually stands on - every host below is a signed observation
nist.gov
A / AAAA
172.65.90.26172.65.90.27172.65.90.24172.65.90.25+4 more
Cloudflareserves the site
NS
gold.foundationdns.comgold.foundationdns.netgold.foundationdns.org
foundationdns.com + foundationdns.net + moreanswers its DNS
MX
nist-gov.mail.protection.outlook.com
Microsoft 365receives its email
TLS
nist.gov
Let's Encryptissued its certificate
DNS Records
A 4
172.65.90.26172.65.90.27172.65.90.24172.65.90.25
AAAA 4
2606:4700:78::90:0:1802606:4700:78::90:0:1812606:4700:78::90:0:1822606:4700:78::90:0:183
MX 1
0nist-gov.mail.protection.outlook.com
TXT 13
MS=ms22398849_hie8b7uqvafayfkdb47ag5t5up1nxbbjamf-site-verification=Sr15KQEdTRZZXqaxbFaFQwopenai-domain-verification=dv-LH2I25vAcFPzjYDPYCU2t6Uyv=spf1 include:_spf1.nist.gov include:_spf2.nist.gov -alldomain-verification=J6aCmM09zEcfzyPp57W7AtDczKeyPHwj_WRoqnt0g0Qgoogle-site-verification=oJSFVUoM3RN44bzuiI9F3qWzWxTqmrawzMycAD_NUcYbox-domain-verification=4d49553685eee3edbcf58b736eb4c42febff4e1741da8db3098f2bb3d161d90fcisco-ci-domain-verification=1b1e68d4cf0e84478115596723f00e17a848c659bb11f53b58f8f2cd84b7e111atlassian-domain-verification=xVa84aCbqa1pJZZdpB0gGm0ZNukDUU4TBzccNbFkyozIg3QXHaufaQaczvEDG3Jp
NS 3
gold.foundationdns.comgold.foundationdns.netgold.foundationdns.org
SOA 1
gold.foundationdns.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
nist.gov |
C=US, O=Let's Encrypt, CN=YE2 | Wed, 30 Sep 2026 09:58:00 +0000 |
YE2 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +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 receiptEd25519 Receipt
- Receipt ID
rcpt_ce870ae6d3e03971- Output Hash
ef029ae83072ac1f8131f0ecdde4232a06c3eecd3c71d6ca9c2a347f236022df- Signature
ed25519:bb05f4b2a20c7e3918ae8e46e0abe692fca0ee7b7780d986cf29df23bee3c841f15ceb1492ae43743749f5311d7cd0f2a2534c240cf91465ba1879277c0c5704- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast