indexo.dev

johannes-buettner.com

.com crawl

First seen 2026-04-20 · Last seen 2026-05-17 · ok HTTP/1.1 200 3346 ms crawled 2026-05-14

FR · 92.204.222.108 · AS21499 Host Europe GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Johannes Büttner -
Language
en-US

Open Graph

url
https://www.johannes-buettner.com/
title
Johannes Büttner
locale
en_US
site name
Johannes Büttner

Technology

Server
Apache
CMS
WordPress
Social widgets
  • Vimeo Embed

Third-party hosts loaded (2)

  • ajax.googleapis.com×2
  • player.vimeo.com×1

Social

Registration

Registrar
Mesh Digital Limited
Created
2015-06-07
Expires
2027-06-07 382 days left
Updated
2026-05-08
Name servers
  • ns69.domaincontrol.com
  • ns70.domaincontrol.com

DNS records live

NS
  • ns69.domaincontrol.com
  • ns70.domaincontrol.com
MX
  • 0 johannesbuettner-com02b.mail.protection.outlook.com
TXT
  • NETORGFT19621642.onmicrosoft.com

Email authentication weak

SPF
v=spf1 include:secureserver.net -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-10 to 2026-07-09
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.johannes-buettner.com/

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

Links to (50)

Linked from (2)