ripser.org

Observed Jul 28, 2026, 20:21 UTC (10h 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

Not responding

Signed observation on record.

domcop

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

INFRASTRUCTURE MAPwhat ripser.org actually stands on - every host below is a signed observation

ripser.org

A / AAAA

89.31.143.90

unattributedserves the site

ns.udag.orgns.udag.dens.udag.net

udag.org + udag.de + moreanswers its DNS

mx00.udag.demx01.udag.de

udag.dereceives its email

DNS Records

A 1

89.31.143.90

MX 2

10mx00.udag.de
20mx01.udag.de

TXT 1

v=spf1 include:_smtp.udag.de ~all

NS 3

ns.udag.org
ns.udag.de
ns.udag.net

SOA 1

ns.udag.de hostmaster.united-domains.de

TLS Certificates (0)

None.

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 receipt

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

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

Ed25519 Receipt

Receipt ID: rcpt_73a82e46008d9783
Output Hash: 2ae0545c1621fba61d54d95cbcf31f31802254d7ca005dcd62d5ab451e6519fa
Signature: ed25519:9a0f320a9069a3a91b0b10c6cfa818d93c66dbdbf8391e3b3f69455177a4f23511d18d05fe60d921e457eedd21103c9a6b178fac1dec09dae5e3dda88456eb06
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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