dierck-gruppe.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-18 · ok HTTP/1.1 200 1398 ms crawled 2026-05-07

DE · 46.30.63.87 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: IT-Systemhaus für maßgeschneiderte IT-Lösungen‎ | DIERCK GROUP
Description: Ihr zuverlässiger Partner für IT-Services, Telekommunikation und IT-Sicherheit. Maßgeschneiderte Lösungen für Unternehmen jeder Größe.
Language: de
Generator: TYPO3 CMS
Canonical: https://dierck-gruppe.de/

Technology

Server: Apache
CMS: Ghost

Cookie consent

Cookiebot

Third-party hosts loaded (1)

consent.cookiebot.com×1

Social

Contact

Email

info@dierck.de

Phone

+49431974490

Registration

Updated

2019-06-19

Name servers

ns1040.ui-dns.de.
ns1047.ui-dns.biz.
ns1076.ui-dns.org.
ns1091.ui-dns.com.

DNS records live

NS

ns1040.ui-dns.de
ns1047.ui-dns.biz
ns1076.ui-dns.org
ns1091.ui-dns.com

MX

10 mx01.hornetsecurity.com
20 mx02.hornetsecurity.com
30 mx03.hornetsecurity.com
40 mx04.hornetsecurity.com

TXT

v=verifydomain MS=4658434

Verified for

Google

Email authentication partial

SPF: v=spf1 mx a:mail.reese-it.de include:spf.crsend.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-03-13 to 2026-06-11

Expires in 22 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://dierck-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