zfdd.de

.de crawl

First seen 2026-04-30 · Last seen 2026-05-18 · ok HTTP/1.1 200 3760 ms crawled 2026-05-08

DE · 151.252.56.31 · AS25504 Vautron Rechenzentrum AG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title

SEO Zentrum für WEB Design & Datenbanken.

Description

Gestaltungskonzepte, SEO Strategien und Sicherheit für die Wordpress Webseiten Erstellung - Web Design.

Language

Canonical

https://zfdd.de/

Feeds

Open Graph

url: https://zfdd.de
title: SEO Zentrum für WEB Design & Datenbanken.
description: Gestaltungskonzepte, SEO Strategien und Sicherheit für die Wordpress Webseiten Erstellung.

Technology

Server: Apache
CMS: WordPress

Third-party hosts loaded (3)

sp-ao.shortpixel.ai×16
freetools.seobility.net×1
gmpg.org×1

Social

Registration

Updated

2015-02-12

Name servers

ns1.antagus.de.
ns2.antagus.de.

DNS records live

NS

ns1.antagus.de
ns2.antagus.de

MX

10 mail.zfdd.de

TXT

google-site-verification=2TLnC8nR3MaEr-ygoxRGjnW8tUGcsvZQgCgBw-iUyLw

Email authentication weak

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

Certificate (current)

R13

from 2026-05-07 to 2026-08-05

Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://zfdd.de/

present

strict-transport-security

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=0