indexo.dev

hardenberg-institute.com

.com crawl

First seen 2026-05-14 · Last seen 2026-05-14 · ok HTTP/1.1 200 199 ms crawled 2026-05-19

DE · 178.20.101.144 · AS8648 dogado GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Hardenberg Institute
Language
de
Generator
WordPress 6.8.1
Canonical
https://hardenberg-institute.com/
Feeds

Technology

Server
nginx
CMS
WordPress
Social widgets
  • YouTube Embed

Third-party hosts loaded (2)

  • gmpg.org×1
  • www.youtube.com×1

Social

Contact

Email
Phone

Registration

Registrar
InterNetX GmbH
Created
2017-08-10
Expires
2026-08-10 81 days left
Updated
2025-08-11
Name servers
  • a.ns14.net
  • b.ns14.net
  • c.ns14.net
  • d.ns14.net

DNS records live

NS
  • a.ns14.net
  • b.ns14.net
  • c.ns14.net
  • d.ns14.net
MX
  • 10 mxtls.expurgate.net

Email authentication weak

SPF
v=spf1 ip4:194.37.255.0/24 ip4:91.198.224.0/24 ip4:93.241.216.135 include:hostedoffice.ag ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-07 to 2026-07-06
Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://hardenberg-institute.com/

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

Links to (5)

Linked from (2)