sernet.de

Observed Jul 21, 2026, 17:24 UTC (3d 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

IPv6 · 1 subdomain · tranco_100k

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

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

sernet.de

A / AAAA

185.199.218.82a0a:a3c0:0:d2e8::1

2a0aserves the site

ns2.sernet.netns3.sernet.dens4.sernet.netns1.sernet.de

sernet.net + sernet.deanswers its DNS

mail.sernet.de

sernet.dereceives its email

TLS

sernet.de

Let's Encryptissued its certificate

DNS Records

A 1

185.199.218.8

AAAA 1

2a0a:a3c0:0:d2e8::1

MX 1

10mail.sernet.de

TXT 6

546-12b-Ew6
apple-domain-verification=f4f6hgOYuIbYB7mH
swisssign-check=djdMfo0YcH0oKk2mN9FWQUvDApU
v=spf1 mx a:lists.sernet.de a:mail.winwerk.de a:shop.verinice.com a:shop.samba.plus a:oposso.samba.plus a:monitoring.sernet.de a:own.sernet.de ip4:194.29.233.66 ip4:194.26.190.2 ip4:95.130.16.117 include:spf.protection.outlook.com -all
Service Network GmbH, Goettingen, Germany
v=DMARC1; p=reject

NS 4

ns2.sernet.net
ns3.sernet.de
ns4.sernet.net
ns1.sernet.de

SOA 1

ns1.sernet.de hostmaster.sernet.de

TLS Certificates (3)

Common Name	Issuer	Expires
`sernet.de`	C=US, O=Let's Encrypt, CN=YR2	Sat, 12 Sep 2026 05:30:03 +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.sernet.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 sernet.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_c55ce3c68984e791
Output Hash: 4eeb71a5c3f258129c5a78567bfb8c3b1fa75efafb3474aebcf2ff9118c5ca13
Signature: ed25519:ae75e8ea5c620619b59be09ecb5bbeca06e54ca617e0cdeaa8bf3c1f73486da3e102316c733e33cbea7cdeb5f0d2ea350d05eafb6125d4ae75ae8dd8b43a7101
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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