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sterr-koelln.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 634 ms crawled 2026-05-19

DE · 188.40.28.37 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Sterr-Kölln & Partner: Expert:innen für erneuerbare Energien
Description
Seit über 25 Jahren liegt unser Fokus in der Beratung von Akteur:innen der erneuerbaren Energien - interdisziplinär in Deutschland und Frankreich.
Language
de
Generator
TYPO3 CMS
Canonical
https://www.sterr-koelln.com/
Translations
  • de
  • en
  • fr

Technology

Server
Apache
Analytics
  • Google Tag Manager
Cookie consent
  • Usercentrics

Third-party hosts loaded (2)

  • app.usercentrics.eu×1
  • www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar
InterNetX GmbH
Created
1997-07-07
Expires
2026-07-06 46 days left
Updated
2025-07-07
Name servers
  • ns1.freinet.zone
  • ns2.freinet.zone
  • ns3.freinet.zone
  • ns4.freinet.zone

DNS records live

NS
  • ns1.freinet.zone
  • ns2.freinet.zone
  • ns3.freinet.zone
  • ns4.freinet.zone
MX
  • 5 sterrkoelln-com01c.mail.protection.outlook.com
Verified for
  • Apple
  • Google

Email authentication weak

SPF
v=spf1 ip4:185.253.12.154 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2026-03-18 to 2026-10-03
Expires in 135 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.sterr-koelln.com/

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

Links to (1)

Linked from (2)