hk-c.de

.de crawl

First seen 2026-05-07 · Last seen 2026-05-07 · ok HTTP/1.1 200 3078 ms crawled 2026-05-14

DE · 85.13.150.106 · AS34788 Neue Medien Muennich GmbH

Reputation 100/100

Classifying

HTML metadata

Title: Koopmann Energie- und Elektrotechnik
Description: Spezialisten für Energie- und Elektrotechnik | deutschlandweiter Service für Netzbetreiber, Energieversorger und Industrieunternehmen
Language: de
Canonical: https://hk-c.de/

Open Graph

url: https://hk-c.de/
title: Koopmann Energie- und Elektrotechnik
locale: de_DE
site name: KOOPMANN – Energie- und Elektrotechnik
description: Spezialisten für Energie- und Elektrotechnik | deutschlandweiter Service für Netzbetreiber, Energieversorger und Industrieunternehmen

Technology

Server: Apache
CMS: WordPress

Social

Contact

Email

Phone

Registration

Updated

2021-04-20

Name servers

ns1028.ui-dns.biz.
ns1028.ui-dns.com.
ns1028.ui-dns.de.
ns1028.ui-dns.org.

DNS records live

NS

ns1028.ui-dns.biz
ns1028.ui-dns.com
ns1028.ui-dns.de
ns1028.ui-dns.org

MX

5 hkc-de0e.mail.protection.outlook.com

TXT

MS=4C577F8680D4B548DE978127C529D4CF470D3D5E
KveT7/5EznKCb0qAJiqrMjkJEmWrI8OUh+MlrDttKymOkeIKhOEPBLN5LKdso4WCAbLv1t+TrTBrTTMENB5yvg==

Email authentication strong

SPF

v=spf1 ip4:213.168.208.15 include:spf.protection.outlook.com include:_spf.kundenserver.de include:_spf.perfora.net include:spf-de.emailsignatures365.com include:spf.crsend.com include:_spf.pretix.eu -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@hk-c.de; ruf=mailto:dmarc@hk-c.de; fo=1

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv6/358murRTHxgVN/WYR7eocRhn3l+6ejUzkPD4+HSb7mcgaN1g8bbMLSt5AwtGrKWP9D9mMJit9Yu…

selectors probed

Certificate (current)

R12

from 2026-04-28 to 2026-07-27

Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://hk-c.de/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
permissions-policy

findings

CSP allows unsafe inline scripts/styles

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
permissions-policy: geolocation=(), microphone=(), camera=(), payment=()
x-content-type-options: nosniff
content-security-policy: default-src 'self' https: data: blob: 'unsafe-inline' 'unsafe-eval'; img-src 'self' https: data: blob:; font-src 'self' https: data:;
strict-transport-security: max-age=31536000; includeSubDomains; preload