indexo.dev

zukunft-mit-klasse.de

.de crawl

First seen 2026-04-26 · Last seen 2026-05-16 · ok HTTP/1.1 200 1020 ms crawled 2026-05-19

DE · 91.204.46.157 · AS197540 netcup GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Zukunft mit Klasse

Technology

Server
nginx

Registration

Updated
2025-01-08
Name servers
  • root-dns.netcup.net.
  • second-dns.netcup.net.
  • third-dns.netcup.net.

DNS records live

NS
  • root-dns.netcup.net
  • second-dns.netcup.net
  • third-dns.netcup.net
MX
  • 10 mail.zukunft-mit-klasse.de
  • 50 mx2e9f.netcup.net

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-03 to 2026-08-01
Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.zukunft-mit-klasse.de/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (1)