indexo.dev

zfenster.de

.de crawl

First seen 2026-04-20 · Last seen 2026-05-10 · ok HTTP/1.1 200 666 ms crawled 2026-05-13

DE · 217.160.0.40 · AS8560 IONOS SE

Reputation 87/100 weak security headers no dmarc policy

sector home type homepage

HTML metadata

Title
Z-Fenster-Technik KG – Fenster und Haustüren
Language
de-DE

Technology

Server
Apache

Third-party hosts loaded (1)

  • cdnjs.cloudflare.com×2

Registration

Updated
2018-09-11
Name servers
  • ns1031.ui-dns.biz.
  • ns1031.ui-dns.com.
  • ns1031.ui-dns.de.
  • ns1031.ui-dns.org.

DNS records live

NS
  • ns1031.ui-dns.biz
  • ns1031.ui-dns.com
  • ns1031.ui-dns.de
  • ns1031.ui-dns.org
MX
  • 10 mail.zfenster.de
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 mx ip4:87.138.80.219 include:_spf-eu.ionos.com ~all
softfail (~all)
DMARC
not published
DKIM
  • mail: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsr7gNBEAXDG/BgDwc3ZCRYzBpZSItPleTRWPv0kwJ3rQpZcVCH4bpMmV2OQfT13e8TOnMC/fgingVyqe…
selectors probed

Certificate (current)

Sectigo RSA Domain Validation Secure Server CA
from 2025-05-28 to 2026-06-12
Expires in 22 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)