dgkk.de

.de crawl

First seen 2026-04-19 · Last seen 2026-05-16 · ok HTTP/1.1 200 6025 ms crawled 2026-05-13

DE · 81.88.34.116 · AS45012 dogado GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Home | Deutsche Gesellschaft für Kristallwachstum und Kristallzüchtung
Language: de

Open Graph

url: https://www.dgkk.de
title: Deutsche Gesellschaft für Kristallwachstum und Kristallzüchtung

Technology

Server: nginx

Registration

Updated

2019-08-27

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

Certificate (current)

R13

from 2026-04-29 to 2026-07-28

Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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

Links to (4)

Linked from (3)