zdh-zert.de

.de crawl

First seen 2026-04-12 · Last seen 2026-05-19 · ok HTTP/1.1 200 3856 ms crawled 2026-05-09

DE · 78.35.1.162 · AS8422 NetCologne Gesellschaft fur Telekommunikation mbH

Reputation 94/100 dmarc monitor-only

sector b2b services type homepage

HTML metadata

Title
ZDH-ZERT Begutachtungspartner für Handwerk und Mittelstand
Language
de-DE

Technology

Analytics
  • Google Tag Manager
Fonts
  • Font Awesome

Third-party hosts loaded (5)

  • assets.kreative-nerds.de×12
  • cdn.jsdelivr.net×2
  • use.fontawesome.com×2
  • www.google.com×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone

Registration

Updated
2017-12-18
Name servers
  • ns10.inch-media.de.
  • ns11.inch-media.de.
  • ns12.inch-media.de.
  • ns13.inch-media.de.

DNS records live

NS
  • ns10.inch-media.de
  • ns11.inch-media.de
  • ns12.inch-media.de
  • ns13.inch-media.de
MX
  • 0 zdhzert-de0i.mail.protection.outlook.com
  • 10 mail.zdh-zert.de
  • 100 mail.inch-media.net
Verified for
  • Microsoft 365

Email authentication partial

SPF
v=spf1 ip4:144.208.214.205 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email
policy: none (monitoring only)
DKIM
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzqs8lOLAUFF1REtstKL7HfhaP/b4rKZPHDbF64XEV2ZkJvX891JOEmHAdy3yOSq6KWVkmhfAYR7UDE23HD…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2pdXwXcXkhpACxq03qavXqKNJR0RbQ4jEpW22jvJQg1CgYCDe+T9uvMkQcZRJMfrCdXQ6Q0f7ucABTwu4q…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-04-08 to 2026-10-24
Expires in 156 days

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.zdh-zert.de/de-de/

present
  • strict-transport-security
  • x-frame-options
  • referrer-policy
findings
  • missing Content Security Policy
  • weak frame protection
  • missing content type protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin
x-frame-options
ALLOW-FROM https://auditorenportal.zdh-zert.de
strict-transport-security
max-age=31536000; includeSubDomains

Links to (3)

Linked from (20)