indexo.dev

0und1.de

.de crawl dns

First seen 2026-04-22 · Last seen 2026-05-19 · ok HTTP/1.1 200 661 ms crawled 2026-05-15

DE · 185.66.64.124 · AS25394 MK Netzdienste GmbH & Co. KG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
0und1 IT-Systeme: IT-Security & Software
Description
Softwareentwicklung für Windowssysteme sowie für Intra- und Internet, Internet Fullservice, IT-Beratung und IT-Betreuung, Miesbach, München, Rosenheim
Language
de

Technology

Server
nginx

Contact

Email

Registration

Updated
2026-04-17
Name servers
  • ns1.0und1.de.
  • ns1.0und1.eu.
  • ns1.0und1.net.
  • ns2.0und1.de.

DNS records live

NS
  • ns1.0und1.de
  • ns1.0und1.eu
  • ns1.0und1.net
  • ns2.0und1.de
MX
  • 10 op.spamdoc.de

Email authentication weak

SPF
v=spf1 ip4:185.66.66.100 include:spf.protection.outlook.com include:spf.protection.spamdoc.de -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-25 to 2026-07-24
Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://0und1.de/

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

Linked from (1)