indexo.dev

schornsteinfegernetzwerk.de

.de crawl

First seen 2026-05-08 · Last seen 2026-05-19 · ok HTTP/1.1 200 1152 ms crawled 2026-05-14

DE · 94.130.9.152 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Das Deutsche Schornsteinfegerhandwerk - Wir haben die Experten für Sicherheit - Energie - Umwelt
Description
Energieportal des Schornsteinfegerhandwerks

Technology

Server
Apache

Third-party hosts loaded (1)

  • www.google.com×1

Registration

Updated
2026-02-12
Name servers
  • nsa1.schlundtech.de.
  • nsb1.schlundtech.de.
  • nsc1.schlundtech.de.
  • nsd1.schlundtech.de.

DNS records live

NS
  • nsa1.schlundtech.de
  • nsb1.schlundtech.de
  • nsc1.schlundtech.de
  • nsd1.schlundtech.de
MX
  • 10 mail.dexonline.de

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-18 to 2026-07-17
Expires in 56 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://schornsteinfegernetzwerk.de/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=0

Links to (1)

Linked from (8)