costco.co.uk

Observed Jul 24, 2026, 19:08 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 onGoogle

Email byProofpoint

Secured byGoogle Trust Services

Registered withCSC Corporate Domains, Inc

Also usesGoogle Search ConsoleAtlassianDocuSign

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.

Verify this receipt

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

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

Ed25519 Receipt

Receipt ID: rcpt_fb6bfa91becaea5b
Output Hash: c94e74995eadd4462ee8539656bb66f65aeb56d5094a278373d7691fd5d108a6
Signature: ed25519:88622e6e69e0fa93a07a468007b716f51269db74d8c56c37b2ee836f96610e9eb5bf4561cc12ff319b0beff2cde192b34ff5a1fe387390f770dec027cc139b0f
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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