tu-clausthal.de
Observed Jul 22, 2026, 01:16 UTC (5h 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
Runs onVerein zur Foerderung eines Deutschen Forschungsnetzes e.V
Secured byLet's Encrypt
Also usesGoogle Search ConsoleAtlassianZoom
IPv6 · 17 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat tu-clausthal.de actually stands on - every host below is a signed observation
tu-clausthal.de
A / AAAA
139.174.33.1382001:638:605:2021:1::138
Verein zur Foerderung eines Deutschen Forschungsnetzes e.Vserves the site
NS
dns-1.dfn.desodom.rz.tu-clausthal.degomorra.rz.tu-clausthal.denumerobis.rz.tu-clausthal.de
dfn.de + tu-clausthal.deanswers its DNS
MX
c1071.mx.srv.dfn.dea1071.mx.srv.dfn.deb1071.mx.srv.dfn.de
dfn.dereceives its email
TLS
www.tu-clausthal.de
Let's Encryptissued its certificate
DNS Records
A 1
139.174.33.138
AAAA 1
2001:638:605:2021:1::138
MX 3
10c1071.mx.srv.dfn.de10a1071.mx.srv.dfn.de10b1071.mx.srv.dfn.de
TXT 8
google-site-verification=bOtQbT2xPQ-o2c7xCEkBVaFqClmjHIHajL247zmgAzMadobe-idp-site-verification=38688460cb4ba30bc042ced2430ed03f44270bac41a2a64b21342f9ffb63bb1datlassian-domain-verification=hDE0/IEe77icGFTKS41l9lsabbyEkPxzY1ba4z10rdbxDu7qtpTiLDp5YEASK18edell-technologies-domain-verification=tu-clausthal.de_103d37c3-bf9d-416d-8b6a-640a9f01eb88_1702544292ZOOM_verify_lE_-Ou_ISn2nIRLBwqo3ZAHARICA-sdePtmQ6dkJtSeFc1jCv=spf1 include:_spf.tu-clausthal.de ~allv=DMARC1; p=none
NS 4
dns-1.dfn.desodom.rz.tu-clausthal.degomorra.rz.tu-clausthal.denumerobis.rz.tu-clausthal.de
SOA 1
gomorra.rz.tu-clausthal.de hostmaster.tu-clausthal.de
CAA 3
issue "pki.dfn.de"issue "letsencrypt.org"issue "harica.gr"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.tu-clausthal.de |
C=US, O=Let's Encrypt, CN=YR2 | Mon, 19 Oct 2026 05:26:34 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (17)
- arbeitssicherheit.tu-clausthal.de
- bibliothek.tu-clausthal.de
- forschung.tu-clausthal.de
- ifi-ei.tu-clausthal.de
- intranet.tu-clausthal.de
- isse.tu-clausthal.de
- onboarding.tu-clausthal.de
- personalverwaltung.tu-clausthal.de
- www.arbeitssicherheit.tu-clausthal.de
- www.bibliothek.tu-clausthal.de
- www.forschung.tu-clausthal.de
- www.ifi-ei.tu-clausthal.de
- www.intranet.tu-clausthal.de
- www.isse.tu-clausthal.de
- www.onboarding.tu-clausthal.de
- www.personalverwaltung.tu-clausthal.de
- www.tu-clausthal.de
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 receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for tu-clausthal.de. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/tu-clausthal.de">
<img src="https://domaindrift.io/badge/tu-clausthal.de.svg"
width="300" height="64" alt="DomainDrift signed observations for tu-clausthal.de">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_bbc0ada6f72aec75- Output Hash
05921dc271d4ced09d0728b974632bed943989b57d5562ea198efc0cddbf56be- Signature
ed25519:af0f1a024c6b04527ec730ba762c2f7a8f482af6001dd27079f811ec6f77634845e03010f40bb1d5aae6d1cc4cdd2307446b81d27b06e0fef5c8b9b3f757dd0f- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast