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konzentrik.de

.de crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1294 ms crawled 2026-05-19

DE · 85.13.131.92 · AS34788 Neue Medien Muennich GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
konzentrik GmbH
Description
Our goal is to help you build a successful product. We provide a wide range of services to help you with product development, architecture, and strategy.
Language
en

Open Graph

url
https://konzentrik.de/en
title
konzentrik GmbH
locale
en
site name
konzentrik GmbH
description
Our goal is to help you build a successful product. We provide a wide range of services to help you with product development, architecture, and strategy.

Technology

Server
Apache

Third-party hosts loaded (3)

  • norden.social×1
  • umami-maurice.koyeb.app×1
  • unpkg.com×1

Registration

Updated
2021-06-14
Name servers
  • ns81.domaincontrol.com.
  • ns82.domaincontrol.com.

DNS records live

NS
  • ns81.domaincontrol.com
  • ns82.domaincontrol.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • MS=0D8D6D6E9C56B61EAE7EAD54AFB401CE1E60542A
  • google-site-verification=Yi2e7gRJwaim6WFb1WzaY3w0J8mUjZtgpJFtPtHqibs

Email authentication weak

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

Certificate (current)

R13
from 2026-04-27 to 2026-07-26
Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://konzentrik.de/en

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (3)