arst.dk

Observed Jul 20, 2026, 20:46 UTC (4d 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 · tranco

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

INFRASTRUCTURE MAPwhat arst.dk actually stands on - every host below is a signed observation

arst.dk

A / AAAA

49.13.83.139

unattributedserves the site

hydrogen.ns.hetzner.comoxygen.ns.hetzner.comhelium.ns.hetzner.de

hetzner.com + hetzner.deanswers its DNS

mxext3.mailbox.orgmxext1.mailbox.orgmxext2.mailbox.org

mailbox.orgreceives its email

TLS

arst.dk

Let's Encryptissued its certificate

DNS Records

A 1

49.13.83.139

MX 3

20mxext3.mailbox.org
10mxext1.mailbox.org
10mxext2.mailbox.org

TXT 3

v=spf1 include:mailbox.org ~all
google-site-verification=c5XTk_p5hRBhNWP8dkKKgLOW4gsWjCleDbbpNH2eHfo
v=DMARC1; p=quarantine; rua=mailto:postmaster@arst.dk; ruf=mailto:postmaster@arst.dk;

NS 3

hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
helium.ns.hetzner.de

SOA 1

hydrogen.ns.hetzner.com dns.hetzner.com

TLS Certificates (4)

Common Name	Issuer	Expires
`arst.dk`	C=US, O=Let's Encrypt, CN=YE2	Sat, 19 Sep 2026 07:26:48 +0000
`YE2`	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)

www.arst.dk

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 arst.dk. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_d6dcdee8b799fea5
Output Hash: 590f5a26d568114d95ed8cd7de8c2e6afddf8614a44d0f676c9190d48cb6aab4
Signature: ed25519:bd8824761737e94c5b75e884b84dc8525120984b3758a4831bf336af0ce1f1e1364d6f89de9a4102373b09fa37532b7c2ec57749264e998925e6356f18f7ed03
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/arst.dk