CONTINUOUS INTERNET TELEMETRY24H DRIFT9,163 material changesacross 8,753 domains · last 24h · -1,252 vs yesterdayDNS DRIFT575 domains changed DNS providertop destination cloudflare.com · -84 vs yesterdayEMAIL DRIFT144 domains switched email providertop destination google.com · -23 vs yesterdayCERT DRIFT191 domains switched issuing CA24h · -28 vs yesterdayNOW448 curated domains not reachable-255 vs yesterdaySITE ERRORS17,346 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 96,854 sites429 rate-limit / 403 bot-block, a posture signal

tuhh.de

Observed Jul 22, 2026, 01:17 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.

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Up right now
Runs onVerein zur Foerderung eines Deutschen Forschungsnetzes e.V
Secured byHellenic Academic and Research Institutions CA
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat tuhh.de actually stands on - every host below is a signed observation
tuhh.de
A / AAAA
134.28.209.8
Verein zur Foerderung eines Deutschen Forschungsnetzes e.Vserves the site
NS
dns-2.dfn.deauthdns1.rz.tuhh.deauthdns2.rz.tuhh.de
dfn.de + tuhh.deanswers its DNS
MX
smtp4.rz.tu-harburg.desmtp5.rz.tu-harburg.desmtp3.rz.tu-harburg.de
tu-harburg.dereceives its email
TLS
tuhh.de
Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

  • 134.28.209.8

MX 3

  • 5smtp4.rz.tu-harburg.de
  • 15smtp5.rz.tu-harburg.de
  • 25smtp3.rz.tu-harburg.de

TXT 2

  • v=spf1 redirect=_spf.tuhh.de
  • v=DMARC1; p=none; pct=100; rua=mailto:postmaster+dmarc@tuhh.de

NS 3

  • dns-2.dfn.de
  • authdns1.rz.tuhh.de
  • authdns2.rz.tuhh.de

SOA 1

  • authdns1.rz.tuhh.de hostmaster.tuhh.de

SRV 1

  • mail.tu-harburg.de:993 p0

CAA 5

  • iodef "mailto:dfn-pki@tuhh.de"
  • issue "harica.gr"
  • issue "letsencrypt.org"
  • issue "pki.dfn.de"
  • issue "sectigo.com"

TLS Certificates (3)

Common NameIssuerExpires
tuhh.de C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS ECC 1 Wed, 25 Nov 2026 15:28:37 +0000
GEANT TLS ECC 1 C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS ECC Root CA 2021 Sat, 31 Dec 2039 11:14:20 +0000
HARICA TLS ECC Root CA 2021 C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions ECC RootCA 2015 Fri, 31 Aug 2029 07:44:36 +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 tuhh.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_a72f906bbc9e576e
Output Hash
243a03065d939d20e60bc299eb64570fd96056144d5e3bc40c13737dd8685d18
Signature
ed25519:685d19dbb90bac90257208cb5077c9fe3692305968b6e6a979de1442fad054d0502b086c2236b5580351fb4ab1ec451e93d04407b1ce09cee6da9fa592500500
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
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