indexo.dev

duz-open.de

.de crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 636 ms crawled 2026-06-01

FR · 92.204.43.163 · AS8972 Host Europe GmbH

Reputation 62/100 listed in spam blocklist weak security headers no dmarc policy

Classifying

HTML metadata

Title
DUZ open
Description
Open-Access-Plattform; Redaktion & Recherche GbR
Language
de

Open Graph

url
https://www.duz-open.de/de/

Technology

Server
nginx
CMS
Joomla
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts

Third-party hosts loaded (3)

  • www.googletagmanager.com×2
  • consent.cookiefirst.com×1
  • use.typekit.net×1

Contact

Email
Phone

Registration

Updated
2025-07-29
Name servers
  • ns21.domaincontrol.com.
  • ns22.domaincontrol.com.

DNS records live

NS
  • ns21.domaincontrol.com
  • ns22.domaincontrol.com
MX
  • 100 mxlb.ispgateway.de
Verified for
  • Google

Email authentication weak

SPF
v=spf1 mx a include:ispgateway.de ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Starfield Secure Certificate Authority - G2
from 2026-02-25 to 2027-02-25
Expires in 267 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.duz-open.de/de/

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

Links to (3)

Linked from (1)