arc-rdm.org

Observed Jul 27, 2026, 03:19 UTC (5d 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

1 subdomain · domcop

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

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

arc-rdm.org

A / AAAA

185.199.111.153185.199.109.153185.199.110.153185.199.108.153

unattributedserves the site

dns0.fun.uni-freiburg.dedns1.fun.uni-freiburg.dedns1.belwue.dedns3.belwue.de+1 more

uni-freiburg.de + belwue.deanswers its DNS

TLS

arc-rdm.org

Let's Encryptissued its certificate

DNS Records

A 4

185.199.111.153
185.199.109.153
185.199.110.153
185.199.108.153

NS 5

dns0.fun.uni-freiburg.de
dns1.fun.uni-freiburg.de
dns1.belwue.de
dns3.belwue.de
dns5.belwue.de

SOA 1

dhcp.fun.uni-freiburg.de hostmaster.rz.uni-freiburg.de

TLS Certificates (3)

Common Name	Issuer	Expires
`arc-rdm.org`	C=US, O=Let's Encrypt, CN=YR2	Sun, 11 Oct 2026 21:53:53 +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 (1)

www.arc-rdm.org

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

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

Ed25519 Receipt

Receipt ID: rcpt_564d1ca5d25c6ecc
Output Hash: e17bcf2a236c8d5d7bf9ee07afff5f0b0759e7c91071869d10c13dc38385bcde
Signature: ed25519:0613e49da98413ed77d7767028861a3850bd0e6f6c810ad9c38fa616fb6dee13e207013a97eee74380d3adc246ceb85ebb81278689e3bd53747d2fd431945f0c
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/arc-rdm.org