CONTINUOUS INTERNET TELEMETRY24H DRIFT132 material changesacross 91 domains · -526 vs yesterdayCERT DRIFT3 domains switched issuing CA24h · +1 vs yesterdayNOW4,125 curated domains not answering+1,296 vs yesterdayERRORS26,846 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED79,706 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT132 material changesacross 91 domains · -526 vs yesterdayCERT DRIFT3 domains switched issuing CA24h · +1 vs yesterdayNOW4,125 curated domains not answering+1,296 vs yesterdayERRORS26,846 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED79,706 throttled or blocked our scanner429 rate-limit / 403 bot-block

dfn.de

Observed Jul 18, 2026, 12:48 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onuvensys
Secured byHellenic Academic and Research Institutions CA
Also usesGoogle Search Console
IPv6 · 1 subdomain · tranco_10k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dfn.de actually stands on - every host below is a signed observation
dfn.de
A / AAAA
37.208.106.1052a00:d0c0:c:2109::11
uvensysserves the site
NS
ns1.dfn.dens2.dfn.dens3.dfn.dens4.dfn.de
dfn.deanswers its DNS
MX
a1001.mx.srv.dfn.deb1001.mx.srv.dfn.dec1001.mx.srv.dfn.de
dfn.dereceives its email
TLS
dfn.de
Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

  • 37.208.106.105

AAAA 1

  • 2a00:d0c0:c:2109::11

MX 3

  • 10a1001.mx.srv.dfn.de
  • 10b1001.mx.srv.dfn.de
  • 10c1001.mx.srv.dfn.de

TXT 5

  • apple-domain-verification=TdQByV6omDQj06SD
  • google-site-verification=AHsv25T5W2sYiYNmYvU6z8a2G1H_7FM0vJOZf5uOhAE
  • google-site-verification=aNjf9WiXv4G4mjXnYovwIjOS01qfUjBGQbV5xomVJ44
  • v=spf1 include:_spf.s1004.mx.srv.dfn.de a:deneb.dfn.de include:_spf.dfn-cert.de include:_spft.telekom.com ~all
  • v=DMARC1; p=none; rua=mailto:report-dmarc@dfn.de; ruf=mailto:report-dmarc@dfn.de; fo=1

NS 4

  • ns1.dfn.de
  • ns2.dfn.de
  • ns3.dfn.de
  • ns4.dfn.de

SOA 1

  • ns1.dfn.de hostmaster.dfn.de

TLS Certificates (3)

Common NameIssuerExpires
dfn.de C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1 Wed, 09 Sep 2026 07:24:20 +0000
GEANT TLS RSA 1 C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS RSA Root CA 2021 Sat, 31 Dec 2039 11:14:59 +0000
HARICA TLS RSA Root CA 2021 C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions RootCA 2015 Fri, 31 Aug 2029 07:41:54 +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 dfn.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
3e85689e-f9e6-42d6-8283-2a578bfa772b
Output Hash
47342aa13616d0396f8490cc7233c2328f0a6a8e0b40320f033190295979b5e6
Signature
ed25519:ee006c62e7ac815df89b449d305bffeac9ab794aece5ac55be16aea490ced7b2f6ee4587b59259b29a0715e4ea545b6687b0cd4ed339ffebb309fcbd74edf60a
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser