drze.de

Observed Jul 29, 2026, 07:18 UTC (9h 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

majestic

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

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

drze.de

A / AAAA

131.220.250.29

unattributedserves the site

unibn-dns.uni-koeln.dedns2.uni-bonn.dedns3.uni-bonn.dedns1.uni-bonn.de

uni-koeln.de + uni-bonn.deanswers its DNS

esa1.rhrz.uni-bonn.deesa3.rhrz.uni-bonn.deesa2.rhrz.uni-bonn.de

uni-bonn.dereceives its email

TLS

drze.de

Let's Encryptissued its certificate

DNS Records

A 1

131.220.250.29

MX 3

10esa1.rhrz.uni-bonn.de
10esa3.rhrz.uni-bonn.de
10esa2.rhrz.uni-bonn.de

TXT 2

v=spf1 redirect=_spf.uni-bonn.de
v=DMARC1; p=none; sp=none; adkim=s; aspf=s; rua=mailto:dmarc@uni-bonn.de

NS 4

unibn-dns.uni-koeln.de
dns2.uni-bonn.de
dns3.uni-bonn.de
dns1.uni-bonn.de

SOA 1

dns1.uni-bonn.de dnsadmin.uni-bonn.de

SRV 1

artemis.drze.de:443 p0

CAA 4

issuewild "letsencrypt.org"
issuewild "sectigo.com"
issue "sectigo.com"
issue "letsencrypt.org"

TLS Certificates (4)

Common Name	Issuer	Expires
`drze.de`	C=US, O=Let's Encrypt, CN=YE1	Wed, 09 Sep 2026 12:53:00 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

drze.de

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

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

Ed25519 Receipt

Receipt ID: rcpt_93c7c550fc143574
Output Hash: b6c808c19985737baf081000264d1ed9510f648fab2339c54db49a5a65c1fb00
Signature: ed25519:15c816932c3504efc8d3441067e868a321f1036db4f77482d5d501477d1675e564896cf00b6bb30ee07f4846cba34bf2d86325ce99dc42e7cdd77adf88a18700
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/drze.de