CONTINUOUS INTERNET TELEMETRY24H DRIFT3,167 material changesacross 3,021 domains · last 24h · -5,667 vs yesterdayDNS DRIFT96 domains changed DNS providertop destination cloudflare.com · -181 vs yesterdayEMAIL DRIFT19 domains switched email providertop destination outlook.com · -35 vs yesterdayCERT DRIFT26 domains switched issuing CA24h · -47 vs yesterdayNOW494 curated domains not reachable-63 vs yesterdaySITE ERRORS34,138 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 144,433 sites429 rate-limit / 403 bot-block, a posture signal

arcd.de

Observed Jul 28, 2026, 07:13 UTC (12h 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.

Up right now
Secured byLet's Encrypt
IPv6 · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arcd.de actually stands on - every host below is a signed observation
arcd.de
A / AAAA
116.202.183.562a01:4f8:1c0c:a082::
2a01serves the site
NS
ns1.nodesecure.comns2.nodesecure.de
nodesecure.com + nodesecure.deanswers its DNS
MX
mx01.hornetsecurity.commx02.hornetsecurity.commx03.hornetsecurity.commx04.hornetsecurity.com
hornetsecurity.comreceives its email
TLS
arcd.de
Let's Encryptissued its certificate

DNS Records

A 1

  • 116.202.183.56

AAAA 1

  • 2a01:4f8:1c0c:a082::

MX 4

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

TXT 7

  • MS=ms88321163
  • brevo-code:b6f3f7d594e106e6f097388578ea3bd3
  • Sendinblue-code:b6f3f7d594e106e6f097388578ea3bd3
  • RWLnjyyXKkDB9nV9ypPtOUZxqwOTKrvP9urlmJZdbbqNXcQuLVGeTqe4pk4/IAGwkh2ghTsWC2fVZrRCddg8lg==
  • v=spf1 mx a:arcd-web01.portformance.com ip4:217.29.40.143 ip4:93.240.149.187 ip6:2a00:b580:8000:12:8c0d:eeb8:9195:7c8d include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:_spf.psm.knowbe4.com -all
  • v=DMARC1; p=reject; rua=mailto:dmarc+aggregated@reports.nicmanager.net;
  • v=STSv1; id=1747306037;

NS 2

  • ns1.nodesecure.com
  • ns2.nodesecure.de

SOA 1

  • ns1.nodesecure.com administrator.arcd.de

SRV 1

  • autodiscover.arcd.de:443 p10

CAA 7

  • issue "amazon.com"
  • issue "amazonaws.com"
  • issue "amazontrust.com"
  • issue "awstrust.com"
  • issue "godaddy.com"
  • issue "letsencrypt.org"
  • issue "sectigo.com"

TLS Certificates (4)

Common NameIssuerExpires
arcd.de C=US, O=Let's Encrypt, CN=YE2 Fri, 23 Oct 2026 11:40:32 +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 (0)

None observed.

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 arcd.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_933fcaf7d1385790
Output Hash
f95ad19a0579849ca5f69943af4da58626ccf458bfc6bcd1e08114674fdaa609
Signature
ed25519:217e48350eb13a8eee83981337783e9721a3b0f5b02950c5b53ba21827c8d3cb89d88c64f2c19b968945de12043f512110f5a3adaed969864df45068f15f920d
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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