indexo.dev

seidelarchitekten.de

.de crawl

First seen 2026-05-14 · Last seen 2026-05-19 · ok HTTP/1.1 200 838 ms crawled 2026-05-19

DE · 188.68.38.229 · AS197540 netcup GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Startseite | Seidel+Architekten
Description
Wir machen historische Architektur wieder erlebbar und gestalten Neues bewusst modern! 25 Jahre Seidel+Architekten und viele Striche und Punkte später …
Language
de
Generator
CMS 4flex/handmade; http://www.4koepfe.de

Technology

Server
Apache

Registration

Updated
2026-02-20
Name servers
  • nsa1.schlundtech.de.
  • nsb1.schlundtech.de.
  • nsc1.schlundtech.de.
  • nsd1.schlundtech.de.

DNS records live

NS
  • nsa1.schlundtech.de
  • nsb1.schlundtech.de
  • nsc1.schlundtech.de
  • nsd1.schlundtech.de
MX
  • 0 seidelarchitekten-de.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
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAypJyJVA8qNO4WHGklwohcKb02AiCrseiyiIOWyOsEabu8gZihfF03ryTmFkhxW5ZoBX4YU4avktXM3…
selectors probed

Certificate (current)

R13
from 2026-04-11 to 2026-07-10
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.seidelarchitekten.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)