algebra.com

Observed Jul 24, 2026, 19:54 UTC (22h 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.

Verify this receipt yourself + Watch this domain

Up right now

Secured byLet's Encrypt

Also usesGoogle Search Console

5 subdomains · tranco_100k

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 algebra.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_5016551a09adddc7
Output Hash: dd1a86737de4cc40214a363354d74ce31eba0d6b5b4995462455dbd719a97f64
Signature: ed25519:cb29fffa1f1a3615b064b286c7d6fb97d8b6e02bc3e135c03e5d93a82d32a62c5a13e42ffb0950d0a61a198e077334ec736448a9da2dd587743a9cdf12485302
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/algebra.com