indexo.dev

sommerakademie-ostsee.de

.de crawl

First seen 2026-05-15 · Last seen 2026-05-19 · ok HTTP/1.1 200 953 ms crawled 2026-05-19

DE · 49.12.62.75 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

sector education type homepage

HTML metadata

Title
Startseite · Sommerakademie Ostsee
Language
de

Technology

Server
nginx

Contact

Email

Registration

Updated
2023-03-23
Name servers
  • ns1.resellerinterface.de.
  • ns2.resellerinterface.de.

DNS records live

NS
  • ns1.resellerinterface.de
  • ns2.resellerinterface.de
  • ns3.resellerinterface.de
MX
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com

Email authentication weak

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

Certificate (current)

R13
from 2026-04-04 to 2026-07-03
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.sommerakademie-ostsee.de/

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

Links to (11)

Linked from (5)