arena.berlin

Observed Jul 23, 2026, 18:20 UTC (2d 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

1 subdomain · tranco

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

INFRASTRUCTURE MAPwhat arena.berlin actually stands on - every host below is a signed observation

arena.berlin

A / AAAA

185.157.176.44

unattributedserves the site

ns4.atndns.comns3.atndns.comns1.atndns.dens2.atndns.de

atndns.com + atndns.deanswers its DNS

mail2.atnd.netmail3.atnd.net

atnd.netreceives its email

TLS

arena.berlin

Let's Encryptissued its certificate

DNS Records

A 1

185.157.176.44

MX 2

10mail2.atnd.net
10mail3.atnd.net

TXT 1

v=spf1 include:spf.atnd.net mx -all

NS 4

ns4.atndns.com
ns3.atndns.com
ns1.atndns.de
ns2.atndns.de

SOA 1

ns1.atndns.de atnd.atnd.de

SRV 1

exchange.atnd.de:443 p0

CAA 1

issue "letsencrypt.org"

TLS Certificates (4)

Common Name	Issuer	Expires
`arena.berlin`	C=US, O=Let's Encrypt, CN=YE1	Sun, 04 Oct 2026 18:23:05 +0000
`YE1`	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.arena.berlin

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 arena.berlin. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_165c0187aad52e93
Output Hash: 259542eedfafb21dee00ee5b9194e9a736e43aebffd32e2b8b4f6dabaefea5fd
Signature: ed25519:0b7ca37ee11202ec1f1d03bedf101b85789e401ead7a67c0b3f159753510211ee20fdcd39d2978193799dfc59e5f364b80f9bd30a7016463b4064463e46d0c02
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/arena.berlin