duisburg.de

.de crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1287 ms crawled 2026-05-19

DE · 147.28.52.171 · AS206141 Duisburger Versorgungs- und Verkehrsgesellschaft mbH

Reputation 100/100

Classifying

HTML metadata

Title: Stadt Duisburg | Startseite | Stadtportal Duisburg
Description: Duisburg verbindet - Ruhrgebiet, Niederrhein, Rheinland. Herzlich willkommen!
Language: de-DE
Generator: Information Enterprise Server – Sitepark GmbH

Open Graph

url: http://duisburg.de/
title: Stadt Duisburg | Startseite
locale: de_DE
site name: Stadtportal Duisburg
description: Duisburg verbindet - Ruhrgebiet, Niederrhein, Rheinland. Herzlich willkommen!

Technology

Third-party hosts loaded (3)

cdn.eye-able.com×4
translate-cdn.eye-able.com×2
wsts.duit.de×1

Social

Contact

Phone

+4920394000

Registration

Updated

2024-03-01

Name servers

ns01.duit.de.
ns02.duit.de.

DNS records live

NS

ns01.duit.de
ns02.duit.de

MX

50 mx231.duit.de

TXT

MS=ms26794831
apple-domain-verification=zB8aKQXCCIaixQl8

Email authentication strong

SPF

not published

DMARC

v=DMARC1; p=quarantine; rua=mailto:postmaster@duit.de,mailto:operational-security@stadt-duisburg.de

policy: quarantine

DKIM

k1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCyt5r6Dx5h2B9qELZvkr1YYoBIPY+B1GFu4pM+odAvrVmzxU1wxbT6uJkanfxtJtRSLZL0D5bcl2g1Ad9nWF…

selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36

from 2026-04-20 to 2026-11-05

Expires in 169 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://duisburg.de/

present

content-security-policy
x-content-type-options

findings

missing HSTS
CSP uses wildcard sources
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self' *.duisburg.de