duisburg-business.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-16 · ok HTTP/1.1 200 998 ms crawled 2026-05-07

DE · 185.233.54.182 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 87/100 weak security headers no dmarc policy

sector other type homepage

HTML metadata

Title

Duisburg Business & Innovation

Language

de-DE

Generator

TYPO3 CMS

Canonical

https://www.duisburg-business.de/

Translations

Open Graph

title: Duisburg Business & Innovation

Technology

Server: Apache

Third-party hosts loaded (1)

open.spotify.com×1

Social

Registration

Updated

2021-06-29

Name servers

ns71.domaincontrol.com.
ns72.domaincontrol.com.

DNS records live

NS

ns71.domaincontrol.com
ns72.domaincontrol.com

MX

0 smtp.secureserver.net
10 mailstore1.secureserver.net

TXT

DC3437551

Email authentication partial

SPF: v=spf1 include:ispgateway.de include:secureserver.net ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-01 to 2026-06-30

Expires in 40 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.duisburg-business.de

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