vhs-koeln.de

Observed Jul 26, 2026, 09:04 UTC (7d 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 bySectigo

1 subdomain · majestic

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

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

vhs-koeln.de

A / AAAA

91.151.20.22

unattributedserves the site

dns11.netcologne.dedns14.netcologne.dedns13.netcologne.dedns12.netcologne.de

netcologne.deanswers its DNS

mail2.stadt-koeln.demail1.stadt-koeln.de

stadt-koeln.dereceives its email

TLS

vhs-koeln.de

Sectigo Limitedissued its certificate

DNS Records

A 1

91.151.20.22

MX 2

10mail2.stadt-koeln.de
10mail1.stadt-koeln.de

TXT 1

v=spf1 mx ip4:91.151.20.22 ~all

NS 4

dns11.netcologne.de
dns14.netcologne.de
dns13.netcologne.de
dns12.netcologne.de

SOA 1

dns11.netcologne.de hostmaster.routing.net

TLS Certificates (4)

Common Name	Issuer	Expires
`vhs-koeln.de`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36	Sat, 12 Dec 2026 23:59:59 +0000
`Sectigo Public Server Authentication CA DV R36`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46	Fri, 21 Mar 2036 23:59:59 +0000
`Sectigo Public Server Authentication Root R46`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority	Mon, 18 Jan 2038 23:59:59 +0000
`USERTrust RSA Certification Authority`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority	Mon, 18 Jan 2038 23:59:59 +0000

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID: rcpt_6e6ada28efd2f879
Output Hash: 596735604feb7791d1c26f266a77e6f34f3fe3b06633decb0b9fb2e833e02646
Signature: ed25519:64e782d863ef705395e4f06c70f85e165a7b1fdfe5b468b12ad10a34fcf7700ecd81087f77fe5edfa75ef81692b93bd1b2483a6e64a34865eaba8a871c9c7908
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/vhs-koeln.de