tu-dortmund.de
Observed Jul 18, 2026, 13:11 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onVerein zur Foerderung eines Deutschen Forschungsnetzes e.V
Secured byHellenic Academic and Research Institutions CA
Also usesGoogle Search ConsoleDocuSign
IPv6 · 11 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat tu-dortmund.de actually stands on - every host below is a signed observation
tu-dortmund.de
A / AAAA
129.217.205.13129.217.205.11129.217.205.122001:638:50d:202a::13+2 more
Verein zur Foerderung eines Deutschen Forschungsnetzes e.Vserves the site
NS
ns1.itmc.tu-dortmund.desecondary.rrze.uni-erlangen.dedns-3.dfn.dens2.itmc.tu-dortmund.de
tu-dortmund.de + uni-erlangen.de + moreanswers its DNS
MX
esa4.itmc.tu-dortmund.deesa3.itmc.tu-dortmund.de
tu-dortmund.dereceives its email
TLS
www.tu-dortmund.de
Hellenic Academic and Research Institutions CAissued its certificate
DNS Records
A 3
129.217.205.13129.217.205.11129.217.205.12
AAAA 3
2001:638:50d:202a::132001:638:50d:202a::112001:638:50d:202a::12
MX 2
10esa4.itmc.tu-dortmund.de10esa3.itmc.tu-dortmund.de
TXT 10
adobe-idp-site-verification=3abae3246555f1134e1b6c8b2f8852728214ab60db683727bb86d17e00daafb3MS=58A38069D5572941D477C5866498835FE30B0CB9google-site-verification=lC7DdPPX34o9IW6Fu3VPyEWUJVWOFgJ-cmu4Gl-CDxoMS=ms16408126bw=vrCirunrnvC8weAAQY3xf2h0A77xWToIL59YJHIKSNDbdocusign=b3fe92af-ecbb-4be5-a240-d2eaa3469a0fapple-domain-verification=bENlU0mSxvfZqD6wv=spf1 ip4:93.190.66.6 ip4:129.217.0.16 ip4:129.217.4.40 ip4:129.217.128.0/24 ip4:129.217.131.0/24 ip4:195.66.99.135 ip4:62.75.247.44 ip4:212.227.89.57 ip4:217.160.226.166 ip4:82.165.193.1 ip4:85.25.144.9 ip4:54.194.192.132 ip4:87.79.30.25 ip4:87.79.30.30 ip4:91.217.141.0/24 ip4:128.176.118.0/25 ip4:129.217.231.64/26 ip4:185.134.242.25 ip6:2001:638:50d:1301::10 ip6:2001:638:50D:2000::/64 ip4:77.220.249.219 ip4:129.217.255.0/25 include:spf-eu.exlibrisgroup.com include:spf.crsend.com ip4:95.130.22.100 ip6:2a02:2940:0:c007::100 -all_telesec-domain-validation=355015_2025-11-13_I72vZFoKGvUyVawuzQedhLrfxUnByw30lg9E96y3p9RO8A43blv=DMARC1; p=none; rua=mailto:dmarc@tu-dortmund.de
NS 4
ns1.itmc.tu-dortmund.desecondary.rrze.uni-erlangen.dedns-3.dfn.dens2.itmc.tu-dortmund.de
SOA 1
ns0.itmc.tu-dortmund.de hostmaster.tu-dortmund.de
SRV 1
autodiscover.tu-dortmund.de:443 p0
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.tu-dortmund.de |
C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1 | Thu, 13 Aug 2026 11:16:28 +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 (11)
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-dortmund.de. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/tu-dortmund.de">
<img src="https://domaindrift.io/badge/tu-dortmund.de.svg"
width="300" height="64" alt="DomainDrift signed observations for tu-dortmund.de">
</a>
Ed25519 Receipt
- Receipt ID
212e2855-4e5e-4120-a88b-445523a0f726- Output Hash
d05054ea6ecc6317d1f36acfbc8b670ad03c171f14c994f8d9d88530a58af36c- Signature
ed25519:36576278a77220606dc8c11068d1e65fd13de685f1f861ba01f60103cacbc777fc54517f38b59d0f6ae951aa9626a7555ac12f0b0d7998dfb4547b0b6a307400- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast