bk.admin.ch

Observed Jul 18, 2026, 12:21 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onSwisscom (Schweiz)

Secured bySwissSign AG

Also usesAtlassian

2 subdomains · push_legacy

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

INFRASTRUCTURE MAPwhat bk.admin.ch actually stands on - every host below is a signed observation

bk.admin.ch

A / AAAA

193.223.22.199

Swisscom (Schweiz)serves the site

mx02.mail.admin.chmx03.mail.admin.chmx04.mail.admin.chmx01.mail.admin.ch

admin.chreceives its email

TLS

www.bk.admin.ch

SwissSign AGissued its certificate

DNS Records

A 1

193.223.22.199

MX 4

10mx02.mail.admin.ch
10mx03.mail.admin.ch
10mx04.mail.admin.ch
10mx01.mail.admin.ch

TXT 5

atlassian-domain-verification=89Qq0GcjoYTfGWhVh9buI9tMFE81nABxwTPsKK9tR/tjYsOGdpJGYZef0NiSZc0L
MS=ms64009853
v=spf1 redirect=_spfgroupb.admin.ch
apple-domain-verification=pVQQOpGquYpsvFi3
v=DMARC1; p=quarantine; rua=mailto:dmarc.rua@admin.ch

SRV 1

outlook.admin.ch:443 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`www.bk.admin.ch`	C=CH, O=SwissSign AG, CN=SwissSign RSA TLS OV ICA 2022 - 1	Fri, 11 Dec 2026 12:12:31 +0000
`SwissSign RSA TLS OV ICA 2022 - 1`	C=CH, O=SwissSign AG, CN=SwissSign RSA TLS Root CA 2022 - 1	Sun, 29 Jun 2036 09:34:30 +0000
`SwissSign RSA TLS Root CA 2022 - 1`	C=CH, O=SwissSign AG, CN=SwissSign Gold CA - G2	Mon, 22 Sep 2036 11:27:11 +0000

Subdomains (2)

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 bk.admin.ch. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 365626d1-8506-40f2-8864-4ec2f64e9dc1
Output Hash: e16a96b2bc276d17c5dac5ea8d6aefd5624e486f03c16b095f0c2f5a7a6fe138
Signature: ed25519:6be4eea7080d412181e0e805d46387d804c691585f6a50f2d9d56f3bd316d7d60634511c6fcb49185a7784ed9326a4399de1688aa925dede68f0ef7e6428100d
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/bk.admin.ch