duerselen-immobilien.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-14 · ok HTTP/1.1 200 3795 ms crawled 2026-05-07

DE · 195.216.198.222 · AS44499 GRASS-MERKUR GmbH & Co. KG

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title

Home - Dürselen GmbH

Description

Hausverwaltung für WEG und Eigentümer in Köln und Umgebung. Persönlich, transparent und zuverlässig mit Dürselen Immobilien.

Language

de-DE

Generator

WordPress 6.9.4

Translations

de ×2
en ×2

Feeds

Dürselen GmbH » Feed RSS

Open Graph

url: https://duerselen-immobilien.de/
title: Home - Dürselen GmbH
locale: de_DE
site name: Dürselen GmbH
description: Hausverwaltung für WEG und Eigentümer in Köln und Umgebung. Persönlich, transparent und zuverlässig mit Dürselen Immobilien.

Technology

Server: nginx
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (2)

www.googletagmanager.com×2
gmpg.org×1

Social

Contact

Email

Phone

+4926194231720

Registration

Updated

2023-04-06

Name servers

ns1025.ui-dns.com.
ns1080.ui-dns.biz.
ns1114.ui-dns.org.
ns1122.ui-dns.de.

DNS records live

NS

ns1025.ui-dns.com
ns1080.ui-dns.biz
ns1114.ui-dns.org
ns1122.ui-dns.de

MX

0 duerselenimmobilien-de02c.mail.protection.outlook.com

Email authentication weak

SPF

v=spf1 include:spf.protection.outlook.com ~all

softfail (~all)

DMARC

not published

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxqn6P99yHm238Zq5lpHhpWaINvIoqO0YoHU7piII9s9H0U2DF5AaauSXci/8fMvlZPtcAhVCYdV1YR…

selectors probed

Certificate (current)

R13

from 2026-03-29 to 2026-06-27

Expires in 37 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://duerselen-immobilien.de/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
cross-origin-opener-policy
cross-origin-embedder-policy
cross-origin-resource-policy

findings

missing Permissions Policy

Header values

referrer-policy: no-referrer
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self';
strict-transport-security: max-age=31536000; includeSubDomains
cross-origin-opener-policy: unsafe-none
cross-origin-embedder-policy: unsafe-none; report-to='default'
cross-origin-resource-policy: cross-origin