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janssen-it.de

.de ok HTTP/1.1 200 122 ms

First seen 2026-05-22 · Last seen 2026-06-19 · crawled 2026-06-11

DE · 178.63.180.161 · AS24940 Hetzner Online GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Janßen-IT - Ihr IT-Dienstleister
Description
Hayo Janßen IT-Systeme & Service Ihr IT und EDV Dienstleister in Bonn, Bad Honnef, Königswinter und Linz im Rheinland
Language
de

Contact

Technology

Server
Apache

Registration

Updated
2010-12-17
Name servers
  • ns2.heise-server.de.
  • ns.heise-server.de.

DNS records live

NS
  • ns.heise-server.de
  • ns2.heise-server.de
MX
  • 10 mail07.janssennet.com

Email authentication strong

SPF
v=spf1 a mx include:_spf.janssennet.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; aspf=s; adkim=s;
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-14 to 2026-07-13
Expires in 24 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://janssen-it.de/

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

Links to (1)

Linked from (1)

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