indexo.dev

heizungskoenig.de

.de crawl

First seen 2026-05-16 · Last seen 2026-05-16 · ok HTTP/1.1 200 1980 ms crawled 2026-05-20

DE · 18.156.65.37 · AS16509 Amazon.com, Inc.

Reputation 95/100 weak security headers

sector b2b services type homepage

HTML metadata

Title
Home - Frank König GmbH
Description
Die Frank König Gmbh ist Ihr kompetenter Handwerksspezialist in Berlin und Umgebung in den Bereichen Heizung, Sanitär und Klima.
Language
de
Generator
Powered by LayerSlider 6.8.2.1 - Multi-Purpose, Responsive, Parallax, Mobile-Friendly Slider Plugin for WordPress.
Canonical
https://heizungskoenig.de/
Feeds

Open Graph

url
https://heizungskoenig.de/
title
Home - Frank König GmbH
locale
de_DE
site name
Frank König GmbH
description
Die Frank König Gmbh ist Ihr kompetenter Handwerksspezialist in Berlin und Umgebung in den Bereichen Heizung, Sanitär und Klima.

Technology

Server
openresty
CMS
WordPress 6.8.2.1

Third-party hosts loaded (1)

  • gmpg.org×1

Contact

Email
Phone

Registration

Updated
2022-09-16
Name servers
  • ns26.ns26.de.
  • ns27.ns27.de.
  • ns28.ns28.de.

DNS records live

NS
  • ns26.ns26.de
  • ns27.ns27.de
  • ns28.ns28.de
MX
  • 0 heizungskoenig-de.mail.protection.outlook.com

Email authentication strong

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

Certificate (current)

R12
from 2026-04-05 to 2026-07-04
Expires in 44 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://heizungskoenig.de/

present
  • referrer-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Permissions Policy
Header values
referrer-policy
no-referrer-when-downgrade

Links to (2)

Linked from (1)