indexo.dev

kerker.de

.de crawl

First seen 2026-04-17 · Last seen 2026-05-12 · ok HTTP/1.1 200 2698 ms crawled 2026-05-12

DE · 212.63.131.38 · AS8741 ratiokontakt GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
kerker Haustechniksysteme
Language
de-de
Generator
Joomla! - Open Source Content Management

Open Graph

url
https://www.kerker.de/
title
kerker Haustechniksysteme

Technology

Server
nginx
CMS
Joomla
Cookie consent
  • Usercentrics

Third-party hosts loaded (2)

  • app.usercentrics.eu×1
  • privacy-proxy.usercentrics.eu×1

Social

Contact

Email
Phone
Address
Augsburger Straße 61 - 63, 86830, Schwabmünchen

Registration

Updated
2018-07-10
Name servers
  • ns1.nameserver.de.
  • ns2.nameserver.de.

DNS records live

NS
  • ns1.nameserver.de
  • ns2.nameserver.de
MX
  • 10 exc.kerker.de
TXT
  • MS=ms18850316

Email authentication weak

SPF
v=spf1 redirect=viacontrol.de 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 2025-08-27 to 2026-09-18
Expires in 121 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • content-security-policy-report-only
  • 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
content-security-policy-report-only
frame-ancestors 'self'

Links to (5)

Linked from (1)