indexo.dev

martinfehrensen.de

.de crawl

First seen 2026-05-01 · Last seen 2026-05-20 · ok HTTP/1.1 200 571 ms crawled 2026-05-08

US · 185.199.110.153 · AS54113 Fastly, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Martin Fehrensen
Description
Martin Fehrensen: Journalist & Speaker. Gründer Social Media Watchblog: Newsletter zum Wandel der digitalen Öffentlichkeit.
Language
de
Generator
Hugo 0.161.1
Feeds

Open Graph

url
https://martinfehrensen.de/
title
Martin Fehrensen
site name
Martin Fehrensen
description
Martin Fehrensen: Journalist & Speaker. Gründer Social Media Watchblog: Newsletter zum Wandel der digitalen Öffentlichkeit.

Technology

CDN
Fastly
Server
GitHub.com
CMS
Hugo

Social

Registration

Updated
2024-03-05
Name servers
  • ns2.checkdomain.de.
  • ns.checkdomain.de.

DNS records live

NS
  • ns.checkdomain.de
  • ns2.checkdomain.de
MX
  • 10 mx03.secure-mailgate.com
  • 20 mx04.secure-mailgate.com
Verified for
  • Google

Email authentication partial

SPF
v=spf1 include:secure-mailgate.com ?all
neutral (?all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-12 to 2026-06-10
Expires in 21 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (5)

Linked from (1)