indexo.dev

sicherheitsingenieur.de

.de crawl

First seen 2026-04-28 · Last seen 2026-05-18 · ok HTTP/1.1 200 3254 ms crawled 2026-05-05

DE · 80.239.139.33 · AS1299 Arelion Sweden AB

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Arbeitssicherheit Ulm | Sicherheitsingenieur | Heinzelmann GmbH
Language
de
Generator
All in One SEO (AIOSEO) 4.9.5.1
Canonical
https://sicherheitsingenieur.de/
Feeds

Open Graph

url
https://sicherheitsingenieur.de/
title
Arbeitssicherheit Ulm | Sicherheitsingenieur | Heinzelmann GmbH
locale
de_DE
site name
Heinzelmann GmbH | Ingenieurbüro für Arbeitssicherheit

Technology

Server
nginx
CMS
WordPress

Third-party hosts loaded (1)

  • gmpg.org×1

Social

Contact

Email
Phone

Registration

Updated
2018-03-19
Name servers
  • ns1.webgo.de.
  • ns2.webgo.de.
  • ns3.webgo.de.
  • ns4.webgo.de.

DNS records live

NS
  • ns1.webgo.de
  • ns2.webgo.de
  • ns3.webgo.de
  • ns4.webgo.de
MX
  • 10 mail.sicherheitsingenieur.de
TXT
  • v=DMARC1;p=none;fo=1
  • v=spf1 a mx ip4:37.17.224.0/21 ip4:185.30.32.0/22 ip4:88.82.224.0/19 ip4:45.153.56.0/22 ip4:87.138.187.158 ~all
Verified for
  • Microsoft 365

Certificate (current)

R13
from 2026-03-16 to 2026-06-14
Expires in 24 days

Full certificate history on crt.sh ↗

HTTP security headers

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