betonwissen.de

.de crawl

First seen 2026-04-22 · Last seen 2026-05-16 · ok HTTP/1.1 200 6057 ms crawled 2026-05-16

DE · 188.245.101.115 · AS24940 Hetzner Online GmbH

Reputation 75/100 listed in spam blocklist

Classifying

HTML metadata

Title

BetonWissen – Aus- und Weiterbildung mit dem BTB

Description

Die Plattform BetonWissen bündelt das Weiterbildungs- und Informationsangebot des Bundesverbandes Transportbeton.

Language

Canonical

https://www.betonwissen.de/

Feeds

BetonWissen » Feed RSS

Open Graph

url: https://www.betonwissen.de/
title: Home
locale: de_DE
site name: BetonWissen
description: Die Plattform BetonWissen bündelt das Weiterbildungs- und Informationsangebot des Bundesverbandes Transportbeton.

Technology

Server: nginx

Social

Registration

Updated

2025-12-08

Name servers

helium.ns.hetzner.de.
hydrogen.ns.hetzner.com.
oxygen.ns.hetzner.com.

DNS records live

NS

helium.ns.hetzner.de
hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com

Email authentication no MX

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

Certificate (current)

R13

from 2026-05-11 to 2026-08-09

Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.betonwissen.de/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options

findings

missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self'
strict-transport-security: max-age=31536000; ;