indexo.dev

zimmermann-lueftung.de

.de crawl

First seen 2026-05-02 · Last seen 2026-05-09 · ok HTTP/1.1 200 3219 ms crawled 2026-05-09

DE · 185.221.107.54 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 95/100 weak security headers

sector home type homepage

HTML metadata

Title
Zimmermann Lüftungs- und Wärmesysteme GmbH & Co. KG
Description
Ein sparsames, nachhaltiges und innovatives System fürs Heizen, Lüften, Warmwasser bereiten und sogar Kühlen! Neugierig? Hier beantworten wir Ihre Fragen.
Language
de
Generator
TYPO3 CMS

Technology

Server
Apache

Social

Contact

Email
Phone
Address
Seelbacher Straße 111, D-57258, Freudenberg, NRW

Registration

Updated
2018-08-02
Name servers
  • docks15.rzone.de.
  • shades19.rzone.de.

DNS records live

NS
  • docks15.rzone.de
  • shades19.rzone.de
MX
  • 10 mx01.hornetsecurity.com
  • 10 zimmermannlueftung-de02e.mail.protection.outlook.com
  • 100 mx03.hornetsecurity.com
  • 100 mx04.hornetsecurity.com
TXT
  • sophos-domain-verification=1af4853291e1309634e5bf4a859a5ee8d0bdf0e86f0d3e2e04c72adfdc386bae
Verified for
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rf=afrf; sp=quarantine; ri=86400; adkim=r; aspf=s
policy: quarantine · sp=quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCp34KaLs8rtFgO6sve94gEJ83gY9vrZSs3pcEcIQxgoAQboO1xhGeF3nMCS8kEAVNU3wjsx/3zdCFxZKW+Bv…
selectors probed

Certificate (current)

R12
from 2026-03-11 to 2026-06-10
Expires in 20 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.zimmermann-lueftung.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 (3)

Linked from (2)