indexo.dev

biermann-bau.de

.de crawl

First seen 2026-05-15 · Last seen 2026-05-15 · ok HTTP/1.1 200 2801 ms crawled 2026-05-20

DE · 85.114.145.190 · AS24961 WIIT AG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Friedrich Biermann Baugesellschaft mbH
Description
Willkommen auf der Internetseite der Friedrich Biermann Baugesellschaft mbH
Language
de

Technology

Server
Apache

Third-party hosts loaded (1)

  • maps.nol-is.de×1

Contact

Email
Phone

Registration

Updated
2010-03-26
Name servers
  • ns.norplex-communications.com.
  • ns.norplex-communications.net.

DNS records live

NS
  • ns.norplex-communications.com
  • ns.norplex-communications.net
MX
  • 0 biermannbau-de02b.mail.protection.outlook.com

Email authentication weak

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

Certificate (current)

E7
from 2026-03-20 to 2026-06-18
Expires in 28 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.biermann-bau.de/

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

Linked from (1)