indexo.dev

pc-professional.de

.de crawl

First seen 2026-05-21 · Last seen 2026-05-27 · ok HTTP/1.1 200 1238 ms crawled 2026-05-27

NL · 13.95.82.181 · AS8075 Microsoft Corporation

Reputation 87/100 weak security headers no dmarc policy

Classifying

Technology

Server
Microsoft-IIS

Registration

Updated
2026-01-07
Name servers
  • ns49.domaincontrol.com.
  • ns50.domaincontrol.com.

DNS records live

NS
  • ns49.domaincontrol.com
  • ns50.domaincontrol.com
MX
  • 100 mxlb.ispgateway.de

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

GeoTrust TLS RSA CA G1
from 2026-03-12 to 2026-09-13
Expires in 103 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://teacher.pc-professional.de/

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

Linked from (2)