arbor-online-center.de
HTML metadata
Technology
- Server
- Apache
- CMS
- Drupal
Social
Registration
- Updated
- 2025-07-17
- Name servers
-
- helium.ns.hetzner.de.
- hydrogen.ns.hetzner.com.
- oxygen.ns.hetzner.com.
DNS records live
- NS
-
- helium.ns.hetzner.de
- hydrogen.ns.hetzner.com
- oxygen.ns.hetzner.com
- MX
-
- 10 mail.arbor-online-center.de
- Verified for
-
Email authentication partial
- SPF
-
v=spf1 a mx ptr ~allsoftfail (~all) - DMARC
-
v=DMARC1; p=none;policy: none (monitoring only) - DKIM
- no key found at common selectors
Certificate (current)
R13
Expires in 75 days
HTTP security headers
- present
-
- content-security-policy
- x-frame-options
- x-content-type-options
- findings
-
- missing HSTS
- weak frame protection
- missing Referrer Policy
- missing Permissions Policy
Header values
- x-frame-options
ALLOW-FROM 'self' https://www.arbor-verlag.de https://www.arbor-seminare.de https://virtualevents.movingimage.com, SAMEORIGIN- x-content-type-options
nosniff- content-security-policy
frame-ancestors 'self' https://www.arbor-verlag.de https://www.arbor-seminare.de https://virtualevents.movingimage.com