indexo.dev

doernerinstitut.de

.de crawl

First seen 2026-04-21 · Last seen 2026-05-15 · ok HTTP/1.1 200 8066 ms crawled 2026-05-15

DE · 88.198.81.242 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Doerner Institut
Language
de
Canonical
https://www.doernerinstitut.de/de
Translations
  • de
  • en
Feeds

Technology

Server
nginx

Third-party hosts loaded (1)

  • cdnjs.cloudflare.com×1

Social

Registration

Updated
2021-12-27
Name servers
  • dns1.lrz.de.
  • dns2.lrz.bayern.
  • dns3.lrz.eu.

DNS records live

NS
  • dns1.lrz.de
  • dns2.lrz.bayern
  • dns3.lrz.eu
MX
  • 0 doernerinstitut-de.mail.eo.outlook.com
TXT
  • MS=ms94715220

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-04 to 2026-08-02
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.doernerinstitut.de/de

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Links to (5)

Linked from (1)