indexo.dev

groth-baugmbh.de

.de crawl

First seen 2026-04-16 · Last seen 2026-05-16 · ok HTTP/1.1 200 5423 ms crawled 2026-05-11

DE · 91.213.21.47 · AS198710 3U TELECOM GmbH

Reputation 67/100 wrong cert no dmarc policy

Classifying

HTML metadata

Title
GROTH-Bau GmbH - HOME
Description
Homepage der GROTH-Bau GmbH Bauunternehmung, Maurerstraße 12, 21244 Buchholz
Language
de
Canonical
https://www.groth-baugmbh.de/

Open Graph

url
https://www.groth-baugmbh.de/
title
GROTH-Bau GmbH - HOME
description
Homepage der GROTH-Bau GmbH Bauunternehmung, Maurerstraße 12, 21244 Buchholz

Technology

Server
nginx

Third-party hosts loaded (3)

  • lirp.cdn-website.com×48
  • static.cdn-website.com×5
  • irp.cdn-website.com×4

Registration

Updated
2017-08-07
Name servers
  • dns.hoh-dns.com.
  • dns.hoh-dns.de.
  • dns.hoh-dns.eu.

DNS records live

NS
  • dns.hoh-dns.com
  • dns.hoh-dns.de
  • dns.hoh-dns.eu
MX
  • 10 grothbaugmbh-de01c.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
no key found at common selectors

Certificate (current) wrong cert

R13
from 2026-05-01 to 2026-07-30
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.groth-baugmbh.de/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
strict-transport-security
max-age=31536000; preload

Links to (1)

Linked from (2)