indexo.dev

katholische-freie-schulen.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 1298 ms crawled 2026-05-08

DE · 91.90.158.126 · AS41412 WIIT AG

Reputation 87/100 weak security headers no dmarc policy

sector religion type homepage

HTML metadata

Title
katholisch Freie Schulen im Erzbistum Koeln
Description
Informationen zu den Schulen des Erzbistums Köln

Technology

Server
nginx

Registration

Updated
2023-05-26
Name servers
  • ns1.ntdns.de.
  • ns2.ntdns.de.
  • ns3.ntdns.de.

DNS records live

NS
  • ns1.ntdns.de
  • ns2.ntdns.de
  • ns3.ntdns.de
MX
  • 10 webmail.katholische-freie-schulen.de

Email authentication weak

SPF
v=spf1 ip4:91.90.158.111/32 ip4:91.90.158.112/32 ip4:91.90.158.113/32 include:spf.erzbistum-koeln.de
no all qualifier
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-28 to 2026-06-26
Expires in 36 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.katholische-freie-schulen.de/

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

Linked from (1)