indexo.dev

cosus.de

.de dns

First seen 2026-05-14 · Last seen 2026-05-16 · ok HTTP/1.1 200 2492 ms crawled 2026-05-19

DE · 194.33.120.155 · AS3320 Deutsche Telekom AG

Reputation 94/100 dmarc monitor-only

sector media news type blog

HTML metadata

Title
IT-Systemhaus für Sicherheit & Infrastruktur | COSUS
Description
COSUS IT-Systemhaus: Ganzheitliche IT-Lösungen, IT-Sicherheit und digitale Infrastruktur. Ihr Partner für zuverlässige IT-Betreuung aus dem Schwarzwald.
Language
de
Generator
WordPress 6.9.4
Canonical
https://cosus.de/

Open Graph

url
https://cosus.de/
title
IT-Systemhaus für Sicherheit & Infrastruktur | COSUS
locale
de_DE
site name
COSUS
description
COSUS IT-Systemhaus: Ganzheitliche IT-Lösungen, IT-Sicherheit und digitale Infrastruktur. Ihr Partner für zuverlässige IT-Betreuung aus dem Schwarzwald.
updated time
2026-02-20T10:35:45+00:00

Technology

Server
nginx
CMS
WordPress

Third-party hosts loaded (1)

  • s3.eu-west-1.amazonaws.com×1

Social

Contact

Email
Phone

Registration

Updated
2026-02-19
Name servers
  • a.ns14.net.
  • b.ns14.net.
  • c.ns14.net.
  • d.ns14.net.

DNS records live

NS
  • a.ns14.net
  • b.ns14.net
  • c.ns14.net
  • d.ns14.net
MX
  • 10 emgw.cosus.de
TXT
  • _snwxdnf855ndx1xulop4v3r57a4be3t
  • MS=E75D9D4F4CA77E0BC4CF40409A25EB1F9F1B9CD4
Verified for
  • Apple
  • Google

Email authentication partial

SPF
v=spf1 mx a ip4:194.33.120.151 ip4:194.33.120.179 include:spf.crsend.com -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:mailreports@cosus.de; ruf=mailto:mailreports@cosus.de; fo=1;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-02 to 2026-07-31
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://cosus.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
no-referrer-when-downgrade
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=15768000; includeSubDomains, max-age=63072000; includeSubdomains;

Links to (5)