indexo.dev

gruppenhaus.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-18 · ok HTTP/1.1 200 831 ms crawled 2026-05-07

DE · 217.160.0.151 · AS8560 IONOS SE

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
gruppenhaus.de - Die größte Auswahl an Gruppenunterkünften
Description
4288 Gruppenhäuser und Seminarhäuser in Deutschland! Finden Sie Gruppenunterkünfte für Ihre Gruppenreisen. Seminarhäuser, Schullandheime, Jugendherbergen, Tagungshäuser und mehr.
Language
de

Technology

Server
Apache

Contact

Address
Zeppelinstr. 34, 14612, Falkensee, Brandenburg

Registration

Updated
2020-10-15
Name servers
  • ns1024.ui-dns.de.
  • ns1078.ui-dns.org.
  • ns1080.ui-dns.com.
  • ns1118.ui-dns.biz.

DNS records live

NS
  • ns1024.ui-dns.de
  • ns1078.ui-dns.org
  • ns1080.ui-dns.com
  • ns1118.ui-dns.biz
MX
  • 10 mx00.ionos.de
  • 10 mx01.ionos.de
TXT
  • google-site-verification=JfUZ3B7tSUsilt2xLq1SGUlG_ZY5f9gY9wiJvX87vq0
  • amazonses:8B5suxS3uhCvMclhoMCUikAcS+FLEt+yHSLsjwYNyps=

Email authentication strong

SPF
v=spf1 include:_spf.perfora.net include:_spf.kundenserver.de ip4:84.44.160.20 ip4:217.160.195.78 ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-10-07 to 2026-10-22
Expires in 155 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (8)