sdf.org

Observed Jul 24, 2026, 19:05 UTC (19h 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 onHopOne Internet Corporation

Secured byLet's Encrypt

Registered withNameCheap, Inc.

Also usesGoogle Search Console

tranco_40k

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

No payload stored for this observation.

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

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

Ed25519 Receipt

Receipt ID: rcpt_05bcc5312e3ea2e4
Output Hash: bb99de28f2de95078bf6fefc0863022acb7438cfcf072b73b9f7ab1cf311e509
Signature: ed25519:83fbed3533db94b1b6994835afe2449a06a2ba9740b9d2121835a3f54911c2c08d9c9571524f5a5e08f0eab9e94dc51f4bb1c4f26d83d2f80a10543387730d0b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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