diether-dehm.de

.de crawl

First seen 2026-05-25 · Last seen 2026-06-01 · ok HTTP/1.1 200 939 ms crawled 2026-05-29

DE · 81.88.36.55 · AS45012 dogado GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title

Dr. Diether Dehm

Description

Persönliche Webseite von Dr. Diether Dehm

Language

de-de

Generator

Joomla! - Open Source Content Management

Feeds

Dr. Diether Dehm RSS
Dr. Diether Dehm Atom

Technology

Server: nginx
CMS: Joomla
jQuery: 3.7.1

Social widgets

Twitter Widget
YouTube Embed

Third-party hosts loaded (2)

www.youtube.com×4
platform.twitter.com×1

Social

Registration

Updated

2026-02-16

Name servers

cns1.alfahosting.info.
cns2.alfahosting.info.
cns3.alfahosting.info.

DNS records live

NS

cns1.alfahosting.info
cns2.alfahosting.info
cns3.alfahosting.info

MX

10 mx03.secure-mailgate.com
10 mx04.secure-mailgate.com

Email authentication weak

SPF: v=spf1 a mx include:secure-mailgate.com ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-05-15 to 2026-08-13

Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://diether-dehm.de/

present

x-frame-options
x-content-type-options
referrer-policy
cross-origin-opener-policy

findings

missing HSTS
missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
cross-origin-opener-policy: same-origin