indexo.dev

christofzwiener.de

.de crawl

First seen 2026-04-25 · Last seen 2026-05-15 · ok HTTP/1.1 200 2663 ms crawled 2026-05-18

DE · 81.169.145.162 · AS6724 Strato GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
christof zwiener
Language
en
Generator
Cocoa HTML Writer

Technology

Server
Apache
CMS
Joomla

Third-party hosts loaded (2)

  • content×75
  • templates×21

Registration

Updated
2021-02-14
Name servers
  • docks18.rzone.de.
  • shades20.rzone.de.

DNS records live

NS
  • docks18.rzone.de
  • shades20.rzone.de
MX
  • 5 smtpin.rzone.de

Email authentication strong

SPF
v=spf1 include:_spf.google.com include:_spf.strato.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:postmaster@christofzwiener.de
policy: quarantine
DKIM
  • s1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkh56btIjZ4H8KElYnfi2+n+OLR+mY3bMmgjc9ntzoKR46RYGQrQI+72ugdOsrzWheocix2tFqCfzcl…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-07-06 to 2026-07-28
Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (1)

Linked from (1)