indexo.dev

gerken-gruppe.de

.de crawl

First seen 2026-05-07 · Last seen 2026-05-14 · ok HTTP/1.1 200 362 ms crawled 2026-05-14

DE · 193.53.246.137 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
GERKEN Gruppe
Language
en

Technology

Server
Apache

Social

Registration

Updated
2022-11-02
Name servers
  • ns.udag.de.
  • ns.udag.net.
  • ns.udag.org.

DNS records live

NS
  • ns.udag.de
  • ns.udag.net
  • ns.udag.org
MX
  • 10 mx1.agenturserver.de
  • 20 mx2.agenturserver.de
  • 30 mx3.agenturserver.de
  • 50 mx4.agenturserver.de
  • 90 mail.gerken-arbeitsbuehnen.de

Email authentication weak

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

Certificate (current)

R12
from 2026-04-13 to 2026-07-12
Expires in 51 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://gerken-gruppe.de/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff

Links to (10)

Linked from (4)