spc.noaa.gov

Observed Jul 21, 2026, 19:39 UTC (2d 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.

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Up right now

Runs onNational Oceanic and Atmospheric Administration

Secured byLet's Encrypt

IPv6 · push_legacy

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

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

spc.noaa.gov

A / AAAA

137.75.88.7137.75.88.522610:20:8000:8c01::242610:20:8800:8c00::24

National Oceanic and Atmospheric Administrationserves the site

ns-e.noaa.govns-mw.noaa.govns-nw.noaa.gov

noaa.govanswers its DNS

TLS

spc.noaa.gov

Let's Encryptissued its certificate

DNS Records

A 2

137.75.88.7
137.75.88.52

AAAA 2

2610:20:8000:8c01::24
2610:20:8800:8c00::24

TXT 2

v=spf1 ip4:140.90.173.0/24 -all
U.S. DOC/NOAA/NWS/NCEP/Storm Prediction Center

NS 3

ns-e.noaa.gov
ns-mw.noaa.gov
ns-nw.noaa.gov

SOA 1

odo.spc.noaa.gov sysadmin.odo.spc.noaa.gov

TLS Certificates (4)

Common Name	Issuer	Expires
`spc.noaa.gov`	C=US, O=Let's Encrypt, CN=YR2	Fri, 09 Oct 2026 03:05:19 +0000
`spc.noaa.gov`	C=US, O=Let's Encrypt, CN=YR2	Fri, 09 Oct 2026 03:05:19 +0000
`YR2`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	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.

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Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for spc.noaa.gov. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_94c12510ba2d9ff3
Output Hash: ca354bb2a6fc27703d146ca7135206fdc86087f9cc2e722a57d2ec1af0e79cab
Signature: ed25519:c84acc40b6aa6358b68aa5175276677fa1b84c3d83385b0629835e9e423357175cef9eb9ef73d899b898f05218829f05b31883512ee7de221250878976db4c03
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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