seier-gruppe.de

.de crawl

First seen 2026-04-16 · Last seen 2026-05-19 · ok HTTP/1.1 200 1977 ms crawled 2026-05-11

DE · 195.201.215.73 · AS24940 Hetzner Online GmbH

Reputation 100/100

Classifying

HTML metadata

Title: Die Seier Gruppe | Der Mensch im Mittelpunkt des Unternehmens
Description: Die Seier Gruppe verbindet erstklassige Infrastrukturprojekte mit einer wertschätzenden Unternehmenskultur für nachhaltige Entwicklung und Innovation.
Language: de-DE
Generator: TYPO3 CMS
Canonical: https://www.seier-gruppe.de/

Open Graph

url: {page:url}
title: {page:og_title}
image:url: https://www.seier-gruppe.de/fileadmin/_processed_/f/2/csm_Bildmarke_4da330c8d5.jpg
description: {page:og_description}

Technology

Server: Apache

Analytics

Google Tag Manager

Cookie consent

Cookiebot

Third-party hosts loaded (2)

consent.cookiebot.com×1
www.googletagmanager.com×1

Social

Registration

Updated

2020-10-28

Name servers

ns1066.ui-dns.de.
ns1105.ui-dns.biz.
ns1105.ui-dns.org.
ns1124.ui-dns.com.

DNS records live

NS

ns1066.ui-dns.de
ns1105.ui-dns.biz
ns1105.ui-dns.org
ns1124.ui-dns.com

MX

10 d300449.a.ess.de.barracudanetworks.com
20 d300449.b.ess.de.barracudanetworks.com

TXT

Show 5 TXT records

/OcW8+Rq9Z/Q/pwY4ukT3PYYMboB9O5GCYCKLG4hc2l25Gks4u3sfxQM3uSxvIobjtlGi6Dv9Sv9e4ZfTiJE1w==
8irp45bb8qbsn1lfs4qmhbm62k
google-site-verification=eFxrb4hh7Z8t995AsAeZE-3OaXaxz5vXvP8aR_utwZQ
facebook-domain-verification=kl1l8iwa4vmwykuh5hzemz385am62f
MS=ms33781056

Email authentication strong

SPF

v=spf1 ip4:185.167.148.144/32 ip4:134.119.19.28/32 ip4:212.34.64.185/32 include:spf.mailjet.com include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:spf.sosafe.de include:_spf.google.com include:spf.ess.de.barracudanetworks.com include:_spf.zimpel.de include:hermes.datacon.biz -all

strict (-all)

DMARC

v=DMARC1; p=reject; rua=mailto:dmarc-reports@seier-gruppe.de; ruf=mailto:dmarc-forensic@seier-gruppe.de;

policy: reject (enforced)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzKnd8z0J8PkptEHekCZhWSUVV/F/DuPy1sqFUmG4pZaJOFa1DG86/AfaUIKzkZPvXVXjW2NpIcTRfB…
selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvnRsDDovIyl/0C/y+bRuDAss5ugrStAF1mAjlgUBAryo3AfDddLax706cKLf+tsrh6SBPaZ5MVyPJH…

selectors probed

Certificate (current)

R13

from 2026-04-07 to 2026-07-06

Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.seier-gruppe.de/

present

strict-transport-security
x-content-type-options

findings

missing Content Security Policy
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
strict-transport-security: max-age=31536000; includeSubDomains; preload