grass-haus.de

.de crawl

First seen 2026-04-15 · Last seen 2026-05-18 · ok HTTP/1.1 200 1804 ms crawled 2026-05-10

DE · 46.4.109.106 · AS24940 Hetzner Online GmbH

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Startseite - Günter Grass-Haus - Die Lübecker Museen
Language: de
Generator: gradwerk CMS 6 - www.gradwerk.de
Canonical: https://grass-haus.de

Open Graph

title: Startseite - Günter Grass-Haus - Die Lübecker Museen

Technology

Server: CMS

Social

Contact

Address: Glockengießerstraße 21, 23552, Lübeck, de

Registration

Updated

2009-11-30

Name servers

ns3.kundenserver.de.
ns4.kundenserver.de.

DNS records live

NS

ns3.kundenserver.de
ns4.kundenserver.de

MX

10 mx00.ionos.de
10 mx01.ionos.de

Email authentication partial

SPF: v=spf1 include:_spf.mailersend.net a mx include:spf.gradwerk.de include:_spf-eu.ionos.com ~all
softfail (~all)
DMARC: v=DMARC1; p=none;
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-03-22 to 2026-06-20

Expires in 32 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://grass-haus.de/

present

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

findings

missing Content Security Policy
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
strict-transport-security: max-age=63072000; includeSubDomains; preload;

Links to (19)

Linked from (15)