vennemann-dachtechnik.de

.de crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 285 ms crawled 2026-06-02

DE · 80.150.6.143 · AS3320 Deutsche Telekom AG

Reputation 87/100 weak security headers no dmarc policy

sector home type landing page

HTML metadata

Title: Herzlich Willkommen
Canonical: https://vennemann-dachtechnik.de/Startseite

Open Graph

url: https://vennemann-dachtechnik.de/Startseite
title: Herzlich Willkommen

Technology

Server: IONOS
CMS: Gatsby
jQuery: 1.7 known XSS (<3.5)

Third-party hosts loaded (1)

homepagedesigner.telekom.de×21

Social

Registration

Updated

2024-03-17

Name servers

dns01-tld.t-online.de.
dns02-tld.t-online.de.

DNS records live

NS

dns01-tld.t-online.de
dns02-tld.t-online.de

MX

10 vennemanndachtechnik-de02c.mail.protection.outlook.com

Verified for

Microsoft 365

Email authentication weak

SPF: v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

E7

from 2026-05-07 to 2026-08-05

Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://vennemann-dachtechnik.de/

findings

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

Links to (4)

Linked from (1)

steilhang.tv×1