indexo.dev

clusterle.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 5240 ms crawled 2026-05-08

DE · 148.251.36.116 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

sector other type landing page

HTML metadata

Title
Clusterle Home
Language
de
Canonical
https://www.clusterle.de/

Technology

Server
Apache

Social

Registration

Updated
2023-12-11
Name servers
  • ns.udag.de.
  • ns.udag.net.
  • ns.udag.org.

DNS records live

NS
  • ns.udag.de
  • ns.udag.net
  • ns.udag.org
MX
  • 10 mx00.udag.de
  • 20 mx01.udag.de
TXT
  • google-site-verification=5ae7H9wEn5QIbS0rZhJ2WIfkTKi6zYT4KDyCDSZH7ME

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-17 to 2026-07-16
Expires in 58 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.clusterle.de/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff

Links to (6)

Linked from (1)