stadtwerke-duisburg.de

.de crawl

First seen 2026-04-11 · Last seen 2026-05-20 · ok HTTP/1.1 200 3074 ms crawled 2026-05-19

DE · 147.28.52.172 · AS206141 Duisburger Versorgungs- und Verkehrsgesellschaft mbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Stadtwerke Duisburg AG
Description: Erfahren Sie hier mehr über die Stadtwerke Duisburg. Seit über 170 Jahren stehen wir für eine sichere und zuverlässige Versorgung mit Strom, Gas, Wasser und Fernwärme in Duisburg.
Language: de
Generator: TYPO3 CMS
Canonical: /privatkunden

Technology

Analytics

Google Tag Manager

Cookie consent

Usercentrics

Third-party hosts loaded (6)

code.etracker.com×1
code.jquery.com×1
github.com×1
track.adform.net×1
web.cmp.usercentrics.eu×1
www.googletagmanager.com×1

Social

Registration

Updated

2022-07-14

Name servers

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

DNS records live

NS

ns01.duit.de
ns02.duit.de

MX

10 mx10.dvv.de
10 mx11.dvv.de

TXT

zscaler-verification-123146428-10272025-HJHd88wo2

Verified for

Microsoft 365

Email authentication strong

SPF

v=spf1 mx ip4:185.155.188.140 include:amazonses.com ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:postmaster@duit.de

policy: quarantine

DKIM

k1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDaGcHC9VxaOVaR+aOwhyQ3yUWergJWX5NTAMzZkF7uD/RNVmLXRJpli1596bZBONFf7lOo7mSKl1BwJ6MtCk…

selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36

from 2025-06-23 to 2026-07-24

Expires in 64 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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