ctdo.de

Observed 2026-07-13T15:16:36.568Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

IPv6 · 9 subdomains · tranco_40k

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

INFRASTRUCTURE MAPwhat ctdo.de actually stands on - every host below is a signed observation

ctdo.de

A / AAAA

195.160.168.32001:67c:275c::ffff:c3a0:a803

Cloudflareserves the site

oxygen.ns.hetzner.comhydrogen.ns.hetzner.comhelium.ns.hetzner.de

hetzner.com + hetzner.deanswers its DNS

mail.chaostreff-dortmund.de

chaostreff-dortmund.dereceives its email

HTTPS probe

redirect Redirecting (3xx) 308 → https://www.chaostreff-dortmund.de/

HTTP status308

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time1152 ms

DNS resolutionNOERROR

Redirect chain

https://www.chaostreff-dortmund.de/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

195.160.168.3

AAAA 1

2001:67c:275c::ffff:c3a0:a803

MX 1

10mail.chaostreff-dortmund.de

TXT 2

v=spf1 mx a -all
v=DMARC1; p=reject; rua=mailto:mailauth-reports@chaostreff-dortmund.de

NS 3

oxygen.ns.hetzner.com
hydrogen.ns.hetzner.com
helium.ns.hetzner.de

SOA 1

hydrogen.ns.hetzner.com dns.hetzner.com

TLS Certificates (0)

None.

Subdomains (9)

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 ctdo.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 760b59db-1a83-4260-9cf4-fb93611708fa
Output Hash: 24621c7a6c2d0434eecec27cbeb6ad012afe3ce76082ade7ff261ad099b9278d
Signature: ed25519:8bdf1b9f2f0494fddcd7ff294daac0de1466d50646f08142c16b8b07b717e306c869192914de14eedc21e03e1fde6d99b74aa88b0b3c1ed7c7a9cf9243f24a07
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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