indexo.dev

clausthal-zellerfeld.de

.de crawl

First seen 2026-04-15 · Last seen 2026-05-13 · ok HTTP/1.1 200 7704 ms crawled 2026-05-10

DE · 89.110.176.54 · AS12306 Plus.line AG

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Startseite | Clausthal-Zellerfeld
Language
de
Generator
CMS ionas4
Canonical
https://www.clausthal-zellerfeld.de/clausthal-zellerfeld/startseite/

Open Graph

url
https://www.clausthal-zellerfeld.de/clausthal-zellerfeld/startseite/
title
Startseite
locale
de_DE
site name
Clausthal-Zellerfeld

Technology

Server
Apache

Social

Contact

Email
Phone
Address
Berg- und Universitätsstadt Clausthal-ZellerfeldAn der Marktkirche 838678Clausthal-Zellerfeld

Registration

Updated
2023-02-16
Name servers
  • ns1.telekom.net.
  • pns.dtag.de.

DNS records live

NS
  • ns1.telekom.net
  • pns.dtag.de
MX
  • 10 mta1in.kdo.de
  • 10 mta2in.kdo.de
Verified for
  • Google

Email authentication weak

SPF
v=spf1 mx include:_spf.kdo.de include:spf.itebo.de -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E8
from 2026-03-31 to 2026-06-29
Expires in 40 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://www.clausthal-zellerfeld.de/clausthal-zellerfeld/startseite/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • CSP allows unsafe inline scripts/styles
  • 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: https://kb.ionas.de/; connect-src 'self' https://*.egovernor.de/ https://www.clausthal-zellerfeld.de/:sa2-bwc/clausthal-zellerfeld/startseite/ https://www.clausthal-zellerfeld.de/:sa2-search/clausthal-zellerfeld/startseite/; font-src 'self' data:; frame-ancestors 'self' https://www.clausthal-zellerfeld.de; frame-src 'self' *.arcgis.com https://app.myadvent.net https://iam.chamaeleon.de/ https://www.canva.com https://www.facebook.com/ https://www.google.com; form-action 'self'; img-src 'self' blob: data: https://*.egovernor.de/ https://cdn.eye-able.com/ https://www.clausthal-zellerfeld.de; manifest-src 'self'; media-src 'self'; object-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://cdn.eye-able.com/; script-src-elem 'self' 'unsafe-inline' https://cdn.eye-able.com/; script-src-attr 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' https://cdn.eye-able.com/; style-src-elem 'self' 'unsafe-inline' https://cdn.eye-able.com
strict-transport-security
max-age=31536000

Links to (4)

Linked from (2)