viakoeln.de

Observed Jul 27, 2026, 17:07 UTC (6d 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

Also usesGoogle Search Console

1 subdomain · domcop

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

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

viakoeln.de

A / AAAA

217.154.163.226

unattributedserves the site

ns2a.dodns.netns1a.dodns.net

dodns.netanswers its DNS

mx01.hornetsecurity.commx02.hornetsecurity.commx03.hornetsecurity.commx04.hornetsecurity.com

hornetsecurity.comreceives its email

TLS

viakoeln.de

Let's Encryptissued its certificate

DNS Records

A 1

217.154.163.226

MX 4

10mx01.hornetsecurity.com
20mx02.hornetsecurity.com
30mx03.hornetsecurity.com
40mx04.hornetsecurity.com

TXT 5

sophos-domain-verification=4afcd51ccdd49ed88698e1e2b99fbb0c0a06bdbeff41932841c9ddf4ccdeda39
MS=F6D51CE1C53085B4F6A3EED12997E53887CD0C08
v=spf1 ip4:148.251.42.168 include:spf.protection.outlook.com include:_spf.rhein-consulting.de include:spf.hornetsecurity.com a mx -all
google-site-verification=Y94NOTDuTZbJ52DqDLh5am5UGTvRJ0iwpBdAP3BG-aM
v=DMARC1;p=quarantine;pct=100;rua=mailto:dmarc-reports@viakoeln.de

NS 2

ns2a.dodns.net
ns1a.dodns.net

SOA 1

ns1.dodns.net hostmaster.viakoeln.de

TLS Certificates (3)

Common Name	Issuer	Expires
`viakoeln.de`	C=US, O=Let's Encrypt, CN=YR2	Wed, 23 Sep 2026 11:17:26 +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.viakoeln.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 viakoeln.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_db0d21296c4ad800
Output Hash: 402386979ef5692647da6569aac461ab092ab786e6e198aeb9cbcad3a9299744
Signature: ed25519:d40f550e4137e7cbf8bccca8b8621852eeff28f6c9987d0f7a088d164c2e8fd91aa506917959adf6ed1f6990f25ead625024b079a4575634de3def86e7595505
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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