tum.de

Observed Jul 18, 2026, 12:23 UTC (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onLeibniz-Rechenzentrum

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · 1 subdomain · push_legacy

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

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

tum.de

A / AAAA

129.187.254.2282001:4ca0:0:103::81bb:fee4

Leibniz-Rechenzentrumserves the site

dns1.lrz.dedns2.lrz.bayerndns3.lrz.eu

lrz.de + lrz.bayern + moreanswers its DNS

postrelay1.lrz.depostrelay2.lrz.de

lrz.dereceives its email

TLS

tumde.it.tum.de

Let's Encryptissued its certificate

DNS Records

A 1

129.187.254.228

AAAA 1

2001:4ca0:0:103::81bb:fee4

MX 2

100postrelay1.lrz.de
100postrelay2.lrz.de

TXT 6

bw=UGjzuUOdXCI3ug1kQ2emVoj5D5yYnZDCS72jBNyGexs1
google-gws-recovery-domain-verification=70938335
Foxit-domain-verification=116f60d9e8a810fb28cac4580850729f
v=spf1 a:mail.zv.tum.de a:mail.ze.tum.de redirect=_spf.mail.lrz.de
google-site-verification=r0TlyWzOr-nbp1S5pSMzTsxeEnOFRjk7S0Zq8Hb_A6s
v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@lrz.de

NS 3

dns1.lrz.de
dns2.lrz.bayern
dns3.lrz.eu

SOA 1

dns1.lrz.de hostmaster.lrz.de

SRV 1

xmail.mwn.de:443 p0

TLS Certificates (3)

Common Name	Issuer	Expires
`tumde.it.tum.de`	C=US, O=Let's Encrypt, CN=YR1	Tue, 08 Sep 2026 10:29:41 +0000
`YR1`	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 (1)

tumde.it.tum.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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for tum.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 494377a5-38dc-4e0e-ba8d-4d6931effd01
Output Hash: a8c52dbe5dab0b5c5c1aee52b74f15b5134c2ebca46c472d5e2341866f639faa
Signature: ed25519:0718d185e868e6e979f1f2e33fab5e31145d9a2ceedc5c6444799bc21d770e3efc1b04aee68fad3c09465b4db15b8f2e4c809a0e595f99307f8be33cb1fe9600
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/tum.de