indexo.dev

gustavmueller.com

.com crawl

First seen 2026-05-11 · Last seen 2026-05-16 · ok HTTP/1.1 200 6108 ms crawled 2026-05-16

DE · 212.124.41.153 · AS12470 Globe Development GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Sanitär Heizung Düsseldorf | Gustav Müller
Description
Ihre Spezialisten für Sanitär- und Heizungstechnik und vieles mehr aus Düsseldorf
Language
de
Canonical
https://www.gustavmueller.com

Open Graph

url
https://www.gustavmueller.com/unternehmen
title
Sanitär Heizung Düsseldorf | Gustav Müller
locale
de-DE
site name
Gustav Müller Sanitär- & Heizungstechnik
description
Ihre Spezialisten für Sanitär- und Heizungstechnik und vieles mehr aus Düsseldorf

Technology

CMS
Ghost

Social

Contact

Email
Phone
Address
Volmerswerther Straße 305, 40221, Düsseldorf, DE

Registration

Registrar
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA
Created
2001-01-23
Expires
2027-01-23 247 days left
Updated
2026-01-24
Name servers
  • ns1.dns-service.net
  • ns3.dns-service.net

DNS records live

NS
  • ns1.dns-service.net
  • ns3.dns-service.net
MX
  • 10 viruswall.globe.de

Email authentication weak

SPF
v=spf1 mx ip4:212.124.36.23 ip4:212.124.36.24 ip4:212.124.36.25 ip4:212.124.36.26 ip4:212.124.36.27 ip4:212.124.36.28 ip4:212.124.36.29 -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-23 to 2026-07-22
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.gustavmueller.com/

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

Links to (2)

Linked from (1)