gross-bau.de

.de crawl

First seen 2026-04-14 · Last seen 2026-06-01 · ok HTTP/1.1 200 3209 ms crawled 2026-05-28

DE · 34.89.130.203 · AS396982 Google LLC

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Peter Gross Bau
Description: Willkommen bei PETER GROSS BAU. Erfahren Sie mehr über unsere Leistungen: Im Hochbau, Tiefbau, Generalbau, Baustoffe, Rohstoffe und Wertstoffe.
Language: en
Canonical: https://gross-bau.de/

Open Graph

url: https://gross-bau.de
title: Bauunternehmen – Hochbau – Tiefbau – Baustoffe – Saarland
locale: de_DE
site name: Peter Gross Bau
description: Willkommen bei PETER GROSS BAU. Erfahren Sie mehr über unsere Leistungen: Im Hochbau, Tiefbau, Generalbau, Baustoffe, Rohstoffe und Wertstoffe.

Technology

Server: nginx
CMS: Next.js
JS framework: Next.js

Third-party hosts loaded (2)

s.w.org×2
app.storyblok.com×1

Social

Contact

Email

Phone

Registration

Updated

2025-12-11

Name servers

ns1-09.azure-dns.com.
ns2-09.azure-dns.net.
ns3-09.azure-dns.org.
ns4-09.azure-dns.info.

DNS records live

NS

ns1-09.azure-dns.com
ns2-09.azure-dns.net
ns3-09.azure-dns.org
ns4-09.azure-dns.info

MX

0 grossbau-de01c.mail.protection.outlook.com

TXT

7gJDmY/Z+QvLei/5nP1GGbBlMnaAt8djwTeuhH4NZJwnKDlfgaQ3WUL2LmonaqnGdqW0/4KiAQTVpGCQhBAY1g==
1488898612.bau._domainkey IN TXT "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCny3bcNN6IY131JZ/f6kYaIacPd2NtAeCU3kAt3psCDI8e0sc/onnpbdCU9KDHZWP90hI3YjLBBq91oFmR/QDw8XAGQmBWeETu5F0HoLT9ZLcsSTqfhjjSTLxuvitU2kGxJL5tyc5apeqjOxavJAB/5s03siGKs15dK5wLuIsjiQIDAQAB"

Verified for

Apple
Google

Email authentication strong

SPF

v=spf1 ip4:178.15.128.143 ip4:2.207.215.108 ip4:212.18.198.180 ip4:46.165.165.194 include:spf.protection.outlook.com include:spf.de.umantis.com include:spf.imc-hosting.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s; rua=mailto:dmarc@gross-bau.de

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD8mrzsuOlYf4fkZSD8Finh37mjmcnnW/rQv2/pKs/Pyw+b/1MgOReeChIYOzzfGebAp7Qoqgv6I4WT1oheTx…

selectors probed

Certificate (current)

R12

from 2026-04-21 to 2026-07-20

Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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