indexo.dev

dt-internet.de

.de crawl dns

First seen 2026-04-23 · Last seen 2026-05-21 · ok HTTP/1.1 200 17360 ms crawled 2026-05-16

DE · 85.14.209.104 · AS24961 WIIT AG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
D&T Internet GmbH – Fullservice-Internet-Dienstleister aus Köln
Description
Fullservice-Internet-Dienstleister aus Köln: TYPO3-Agentur, Swyx-Cloud-Telefonanlagen (HostedPBX), Content-Management, Internet-Provider.
Generator
TYPO3 CMS
Canonical
https://www.dt-internet.de/startseite/

Open Graph

url
https://www.dt-internet.de/startseite/
title
Startseite
locale
de_DE
site name
D&T Internet GmbH
description
Fullservice-Internet-Dienstleister aus Köln: TYPO3-Agentur, Swyx-Cloud-Telefonanlagen (HostedPBX), Content-Management, Internet-Provider.

Technology

Server
Apache

Contact

Phone

Registration

Updated
2025-02-12
Name servers
  • dns01.dt-internet.de.
  • dns05.d-t-internet.de.

DNS records live

NS
  • dns01.dt-internet.de
  • dns05.d-t-internet.de
MX
  • 10 1.mailrelay.dt-internet.de
  • 10 2.mailrelay.dt-internet.de
  • 20 backuprelay.dt-internet.de
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 mx ip4:185.201.144.137 include:ihr-webspace.de include:spf.protection.outlook.com ip4:80.82.217.96/27 ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-04-27 to 2026-11-12
Expires in 174 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.dt-internet.de/startseite/

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 (2)