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koechermann.com

.com crawl

First seen 2026-04-21 · Last seen 2026-05-12 · ok HTTP/1.1 200 903 ms crawled 2026-05-15

DE · 144.76.198.40 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Jan Köchermann
Language
en

Open Graph

url
http://koechermann.com/
title
Jan Köchermann
site name
Jan Köchermann

Technology

Server
nginx
Social widgets
  • Vimeo Embed

Third-party hosts loaded (2)

  • d1vq4hxutb7n2b.cloudfront.net×4
  • player.vimeo.com×4

Registration

Registrar
Variomedia AG
Created
2014-10-02
Expires
2026-10-02 134 days left
Updated
2025-10-03
Name servers
  • ns1.variomedia.de
  • ns2.variomedia.de

DNS records live

NS
  • ns1.variomedia.de
  • ns2.variomedia.de
MX
  • 10 mail.variomedia.de

Email authentication weak

SPF
v=spf1 include:servers.mcsv.net ?all
neutral (?all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-26 to 2026-07-25
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://koechermann.com/

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

Linked from (2)