indexo.dev

sievers-consulting.de

.de crawl

First seen 2026-04-15 · Last seen 2026-05-07 · ok HTTP/1.1 200 2835 ms crawled 2026-05-10

DE · 217.160.0.215 · AS8560 IONOS SE

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Sievers Consulting GmbH | concept & communication - home
Description
Die Sievers Consulting GmbH ist seit über 20 Jahren in den Bereichen Public Relations, Medienberatung, Eventmarketing und Medientechnik tätig.

Technology

Server
Apache

Registration

Updated
2018-09-11
Name servers
  • ns1124.ui-dns.biz.
  • ns1124.ui-dns.com.
  • ns1124.ui-dns.de.
  • ns1124.ui-dns.org.

DNS records live

NS
  • ns1124.ui-dns.biz
  • ns1124.ui-dns.com
  • ns1124.ui-dns.de
  • ns1124.ui-dns.org
MX
  • 10 mx00.ionos.de
  • 10 mx01.ionos.de

Email authentication partial

SPF
v=spf1 include:_spf-eu.ionos.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-09-24 to 2026-10-09
Expires in 141 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://sievers-consulting.de/

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

Linked from (1)