CONTINUOUS INTERNET TELEMETRY24H DRIFT39,355 material changesacross 37,705 domains · 24h to ~2h ago · -1,505 vs yesterdayNOW554 curated domains not reachablelast probe, steadySITE ERRORS34,565 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,805 sites429 rate-limit / 403 bot-block, a posture signal

zfn.de

Observed Jul 25, 2026, 17:55 UTC (8d 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 byDigiCert
IPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zfn.de actually stands on - every host below is a signed observation
zfn.de
A / AAAA
188.40.220.1502a01:4f8:1061:164b::2
2a01serves the site
NS
ns-1331.awsdns-38.orgns-1649.awsdns-14.co.ukns-390.awsdns-48.comns-515.awsdns-00.net
awsdns-38.org + awsdns-14.co.uk + moreanswers its DNS
MX
x.zfn.dez.zfn.de
zfn.dereceives its email
TLS
zfn.de
DigiCert Incissued its certificate

DNS Records

A 1

  • 188.40.220.150

AAAA 1

  • 2a01:4f8:1061:164b::2

MX 2

  • 10x.zfn.de
  • 10z.zfn.de

TXT 2

  • MS=2A7CCE7B4D35F0E929A81FE047A059E20B7FF1A4
  • v=spf1 mx ip4:149.56.132.196 ip4:52.58.72.172 ip4:80.73.113.113 include:spf.nl2go.com include:mail3.zfn.schule -all

NS 4

  • ns-1331.awsdns-38.org
  • ns-1649.awsdns-14.co.uk
  • ns-390.awsdns-48.com
  • ns-515.awsdns-00.net

SOA 1

  • ns-515.awsdns-00.net awsdns-hostmaster.amazon.com

TLS Certificates (2)

Common NameIssuerExpires
zfn.de C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G2 Tue, 06 Oct 2026 23:59:59 +0000
Encryption Everywhere DV TLS CA - G2 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Sat, 27 Nov 2027 12:46:40 +0000

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID
rcpt_5ba9ab17bccda1e7
Output Hash
1068210174bd88c84af889d5f4179ecfffc39d130d218285efc087dc0fe786f8
Signature
ed25519:ab031e471dd199b9196789306b47fcf45bde2ee3b3757d0d96c9c16066cf70399d96d6029d622e6c2db16ad59b707c1445b0cb7176c495423ce39afcc7aa4a02
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser