gwdg.de

Observed Jul 18, 2026, 12:57 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onGesellschaft fuer wissenschaftliche Datenverarbeitung mbH

Secured byHellenic Academic and Research Institutions CA

Also usesZoomGoogle Search Console

18 subdomains · tranco_20k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat gwdg.de actually stands on - every host below is a signed observation

gwdg.de

A / AAAA

134.76.9.48

Gesellschaft fuer wissenschaftliche Datenverarbeitung mbHserves the site

dns1.gwdg.dedns2.gwdg.dedns3.gwdg.de

gwdg.deanswers its DNS

a1234.mx.srv.dfn.dec1234.mx.srv.dfn.deb1234.mx.srv.dfn.de

dfn.dereceives its email

TLS

gwdg.de

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

134.76.9.48

MX 3

50a1234.mx.srv.dfn.de
50c1234.mx.srv.dfn.de
50b1234.mx.srv.dfn.de

TXT 13

ZOOM_verify_LjBk1sFbQy-6wtNi_30Ayg
google-site-verification=RlMXVIa9jlHUUBqfquGVvkPDplQrUmmGy04r9Pcirc8
v=spf1 mx ip4:134.76.10.0/23 ip4:134.76.26.0/24 ip4:134.76.9.0/24 ~all
HARICA-Go642LixGt4gVaKjbGx
_telesec-domain-validation=343623_2025-12-03_jcN52gVtb6yF1cQTjyV88jK3He9OYgYumkjo0g6QsauJ19pQJy
apple-domain-verification=wYO3NINDcbjFJ7TK
MS=ms66406244
anthropic-domain-verification-ngjg9a=ktgoQKYeyB59zn3Z2aFHmwtky
cisco-ci-domain-verification=67d851688fcc1c57ee98bb39a861e2f214c9686f76ad3ac8eef0d47b9671b0fd
smGmq67/RiAQqHiZRegnxl+Ph9Uqh4V5HXVTUerodMW63i86iQn0N6UXRr5ie2rbGnYhjpsD8TFR+bnvuXaoBQ==

NS 3

dns1.gwdg.de
dns2.gwdg.de
dns3.gwdg.de

SOA 1

dns1.gwdg.de hostmaster.gwdg.de

SRV 1

email.gwdg.de:443 p0

TLS Certificates (4)

Common Name	Issuer	Expires
`gwdg.de`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Sat, 07 Nov 2026 02:28:28 +0000
`gwdg.de`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Sat, 07 Nov 2026 02:28:28 +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 (18)

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

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

Ed25519 Receipt

Receipt ID: 85a480b0-1616-4a27-9fca-9c97e2437cf9
Output Hash: 914c7dd5e97c9973e623c54408b988467caab2cd5ca78b4aecb6a298b316ddf0
Signature: ed25519:ba5c5b21e2b942dc31d3150483c42dcbed28f75391c4341bc7e312e44b7155cd6a363b36bc7f29ff35496d220b3488fef9ca350ff8672f4c19128984c7dba306
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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