hs21.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-14 · ok HTTP/1.1 200 654 ms crawled 2026-05-06

DE · 81.201.148.62 · AS16205 DSI GmbH Daten Service Informationssysteme

Reputation 97/100 dmarc monitor-only

Classifying

HTML metadata

Title

Home - hochschule 21 in Buxtehude - hochschule 21

Description

Studieren genial dual in Buxtehude! Die hochschule 21 bietet duale Bachelorstudiengänge in den Fachbereichen Bauwesen, Gesundheit und Technik an.

Language

Generator

TYPO3 CMS

Canonical

https://www.hs21.de/

Translations

de-de
en-gb

Open Graph

title: Home - hochschule 21 in Buxtehude
description: Studieren genial dual in Buxtehude! Die hochschule 21 bietet duale Bachelorstudiengänge in den Fachbereichen Bauwesen, Gesundheit und Technik an.

Technology

Server: Apache

Third-party hosts loaded (1)

www.studycheck.de×1

Social

Registration

Updated

2017-02-28

Name servers

ns1.iphh.de.
ns2.iphh.de.
ns3.iphh.net.

DNS records live

NS

ns1.iphh.de
ns2.iphh.de
ns3.iphh.net

MX

10 fw.hs21.de

TXT

google-site-verification=CVG0xaJ1Rdm3hjI-oHAW4tF4PH9eEw9c03fgysPeKW8
MS=5F621501E97948D0A8E00D3B6E7740BF7946082B
google-site-verification=l3wAgJgbfJhZqh4wRoBCCiCUFoGwWFzJbl6tAhOzMzE

Email authentication strong

SPF: v=spf1 ip4:193.174.20.8/32 ip4:195.37.138.178/32 ip4:81.201.148.62 ip4:193.174.240.41/32 ip4:188.1.230.234/32 ip4:188.1.237.190/32 a mx -all
strict (-all)
DMARC: v=DMARC1; p=none; pct=100; rua=mailto:485eabb8@in.mailhardener.com; ruf=mailto:485eabb8@in.mailhardener.com; ri=86400; fo=1
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

Sectigo RSA Domain Validation Secure Server CA

from 2025-05-16 to 2026-06-16

Expires in 27 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.hs21.de/

present

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

findings

missing Content Security Policy

Header values

referrer-policy: no-referrer-when-downgrade
x-frame-options: sameorigin
permissions-policy: camera=(), microphone=(), fullscreen=(self)
x-content-type-options: nosniff
strict-transport-security: max-age=15552000; includeSubDomains