indexo.dev

schmalen-koeln.de

.de crawl

First seen 2026-05-11 · Last seen 2026-05-17 · ok HTTP/1.1 200 17167 ms crawled 2026-05-17

DE · 81.169.145.163 · AS6724 Strato GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Schmalen Versorgungstechnik | Bad, Heizung & Lüftung in Köln.
Language
de
Generator
WordPress 6.9.4
Canonical
https://www.schmalen-koeln.de/
Feeds

Open Graph

url
https://www.schmalen-koeln.de/
title
Schmalen Versorgungstechnik | Bad, Heizung & Lüftung in Köln.
locale
de_DE
site name
Schmalen Versorgungstechnik Köln
description
Seit über 100 Jahren zuverlässiger Partner in Sachen Bad, Heizung & Lüftung – ingenieurtechnische Planung, Realisierung, Wartung und Instandsetzung.

Technology

Server
Apache
CMS
WordPress

Social

Contact

Email
Phone

DNS records live

NS
  • docks12.rzone.de
  • shades06.rzone.de
MX
  • 10 schmalenkoeln-de02b.mail.protection.outlook.com
Verified for
  • Apple
  • Google

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1;p=reject;
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-12-31 to 2027-01-22
Expires in 246 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.schmalen-koeln.de/

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

Links to (1)

Linked from (1)