indexo.dev

stadtwerke-koblenz.de

.de crawl

First seen 2026-04-15 · Last seen 2026-05-10 · ok HTTP/1.1 200 3242 ms crawled 2026-05-10

DE · 89.110.133.100 · AS24989 Equinix (Germany) GmbH

Reputation 92/100 no dmarc policy

sector government type landing page

HTML metadata

Title
Stadtwerke Koblenz | Stadtwerke Koblenz
Language
de
Generator
CMS ionas4
Canonical
https://www.stadtwerke-koblenz.de/

Open Graph

url
https://www.stadtwerke-koblenz.de/
title
Stadtwerke Koblenz
locale
de_DE
site name
Stadtwerke Koblenz

Technology

Server
Apache

Social

Registration

Updated
2023-07-19
Name servers
  • ns-a.ktk.de.
  • ns-b.ktk.io.
  • ns-c.ktk.de.

DNS records live

NS
  • ns-a.ktk.de
  • ns-b.ktk.io
  • ns-c.ktk.de
MX
  • 10 mx01.hornetsecurity.com
  • 20 mx02.hornetsecurity.com
  • 30 mx03.hornetsecurity.com
  • 40 mx04.hornetsecurity.com
  • 50 stadtwerkekoblenz-de02e.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-11-19 to 2026-11-20
Expires in 183 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.stadtwerke-koblenz.de/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • CSP uses wildcard sources
  • missing Permissions Policy
Header values
referrer-policy
strict-origin
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
default-src 'self'; child-src 'self' blob: *.koblenz.de https://kb.ionas.de/; connect-src 'self' blob: *.cartocdn.com *.koblenz.de https://*.egovernor.de/ https://*.readspeaker.com/ https://api.musikschulverwaltung.de/ https://api.neurapolis.de/ wss://api.neurapolis.de/ https://api.service-digitale-verwaltung.de https://app-eu.readspeaker.com https://blupassionsystem.de https://blupassionsystem.de:8443 https://cdn.eye-able.com https://dz.koblenz.de https://f1-eu.readspeaker.com https://geoportal.verwaltung.adkoblenz.de https://rstts-eu.readspeaker.com https://sgx.geodatenzentrum.de https://tracking-nc.chamaeleon.de https://translate-cdn.eye-able.com https://translate.eye-able.com https://web3d.basemap.de; font-src 'self' data: *.koblenz.de; frame-ancestors 'self' https://ionas.koblenz.de https://ride2go.com; frame-src 'self' *.koblenz.de https://*.readspeaker.com/ https://api.service-digitale-verwaltung.de https://familienbuendnis.koblenz.de https://geoportal.koblenz.de/cmsclient/ http
strict-transport-security
max-age=31536000

Links to (3)

Linked from (2)