indexo.dev

heizung-schaefer.de

.de crawl

First seen 2026-04-23 · Last seen 2026-05-14 · ok HTTP/1.1 200 11864 ms crawled 2026-05-17

DE · 217.160.0.30 · AS8560 IONOS SE

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Willkommen
Language
de-de
Generator
Joomla! - Open Source Content Management

Open Graph

url
https://heizung-schaefer.de/
title
Willkommen
locale
de_DE
site name
Schäfer Heizungsbau GmbH - Schwörstadt

Technology

Server
Apache
CMS
Joomla

Registration

Updated
2018-09-10
Name servers
  • ns1065.ui-dns.biz.
  • ns1065.ui-dns.com.
  • ns1065.ui-dns.de.
  • ns1065.ui-dns.org.

DNS records live

NS
  • ns1065.ui-dns.biz
  • ns1065.ui-dns.com
  • ns1065.ui-dns.de
  • ns1065.ui-dns.org
MX
  • 10 heizungschaefer-de01i.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

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

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-11-08 to 2026-11-23
Expires in 186 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://heizung-schaefer.de/

present
  • x-frame-options
  • referrer-policy
  • cross-origin-opener-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
cross-origin-opener-policy
same-origin

Links to (3)

Linked from (1)