tu-braunschweig.de

.de crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 703 ms crawled 2026-05-18

DE · 134.169.9.1 · AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Technische Universität Braunschweig
Language: de
Generator: TYPO3 CMS

Open Graph

title: Technische Universität Braunschweig

Technology

Server: envoy

Social

Registration

Updated

2023-04-24

Name servers

deneb.dfn.de.
rzdnsprime.rz.tu-bs.de.
rzdnssecond.rz.tu-bs.de.

DNS records live

NS

deneb.dfn.de
rzdnsprime.rz.tu-bs.de
rzdnssecond.rz.tu-bs.de

MX

10 a1991.mx.srv.dfn.de
10 b1991.mx.srv.dfn.de
10 c1991.mx.srv.dfn.de

TXT

_telesec-domain-validation=336084_2025-05-09_uu2ln4gkZvKJUC3g2jKnXx25W4LClq4aPdpwZ52TnDIkfomXwR
83fbd8eee9d9f02cc07478e05151bae1

Verified for

Adobe
Cisco
Microsoft 365

Email authentication partial

SPF

v=spf1 ip4:134.169.4.128/26 ~all

softfail (~all)

DMARC

v=DMARC1;p=none;pct=100;rua=mailto:mailauth-reports@tu-braunschweig.de;ruf=mailto:mailauth-reports@tu-braunschweig.de;adkim=r;aspf=r

policy: none (monitoring only)

DKIM

mail: v=DKIM1;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/XSE9C6O1xmmrkR/GexRrdNcU5abFUSGKVghKVa9Goy4CGPAO4eqPgdDdOBD9oZsAO8ptB1/jLFthxB42eH4v…

selectors probed

Certificate (current)

GEANT TLS RSA 1

from 2025-11-22 to 2026-11-22

Expires in 186 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://www.tu-braunschweig.de/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy

findings

missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: same-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=15768000; includeSubDomains; preload;