CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 14,165 material changesacross 13,628+ domains · 24h to ~10h ago · a floor, 14h of 24 walkedSHIFT10 domains moved DNS from brainydns.com to koaladns.coma coordinated move · 24hNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,304 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,289 sites429 rate-limit / 403 bot-block, a posture signal

zu.de

Observed Aug 2, 2026, 11:48 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of zu.de was taken 1d ago

zu.de is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting zu.de under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch zu.de Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Email bySalesforce
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 zu.de actually stands on - every host below is a signed observation
zu.de
A / AAAA
85.13.136.128
unattributedserves the site
NS
cns3.alfahosting.infocns1.alfahosting.infocns2.alfahosting.info
alfahosting.infoanswers its DNS
MX
d334026.a.ess.de.barracudanetworks.comd334026.b.ess.de.barracudanetworks.com
Salesforcereceives its email
TLS
zu.de
Let's Encryptissued its certificate

DNS Records

A 1

  • 85.13.136.128

MX 2

  • 0d334026.a.ess.de.barracudanetworks.com
  • 0d334026.b.ess.de.barracudanetworks.com

TXT 3

  • g6Kq3Gqocv6hwLiszklHL1EsDT+U0yBEhEs+f1/zQ6Iw7gcm12ImDnDKsI7dgzZGyGvz3Tt7lVmxcEqO1NBmFw==
  • v=spf1 ip4:193.175.6.55 include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com include:mail.zendesk.com include:_spf.createsend.com a:vereinonline.org include:_spf.salesforce.com include:_spf.tivian.com include:_spf.uni-freiburg.de -all
  • jYw4p8NNjywh8Fgb5G3R8++Tuyp8+iuZYrslQ/ry9A3ofzCoM+02v2T7gXA4n4zJPYH5jWgwXx3FJ7SY6Nl++A==

NS 3

  • cns3.alfahosting.info
  • cns1.alfahosting.info
  • cns2.alfahosting.info

SOA 1

  • cns1.alfahosting.info hostmaster.alfahosting.de

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc@zu.de,mailto:rua+zu.de@dmarc.barracudanetworks.com; ruf=mailto:dmarc@zu.de,mailto:ruf+zu.de@dmarc.barracudanetworks.com

TLS Certificates (4)

Common NameIssuerExpires
zu.de C=US, O=Let's Encrypt, CN=YE2 Sat, 05 Sep 2026 11:40:12 +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 (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.

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Ed25519 Receipt

Receipt ID
rcpt_f6e86c7144b39e82
Output Hash
49cc9bbe03f81df4e3f209b2dc08b5fa30de4531726e03dc5f8e94827c31d877
Signature
ed25519:7fdd82ed3bd1bb734fce7bb9d028091df08601ae243590d933efc1763584bb8b61d7594e1690e3ae60af1505dce1b3216f5f732fecfb6c15348199d5211a9106
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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