zfn.de
HTML metadata
Technology
- Server
- Apache
- CMS
- Joomla
- Analytics
-
- Google Tag Manager
Third-party hosts loaded (1)
- www.googletagmanager.com×1
Contact
- Phone
Registration
- Updated
- 2026-05-02
- Name servers
-
- ns-1331.awsdns-38.org.
- ns-1649.awsdns-14.co.uk.
- ns-390.awsdns-48.com.
- ns-515.awsdns-00.net.
DNS records live
- NS
-
- ns-1331.awsdns-38.org
- ns-1649.awsdns-14.co.uk
- ns-390.awsdns-48.com
- ns-515.awsdns-00.net
- MX
-
- 10 x.zfn.de
- 10 z.zfn.de
- TXT
-
MS=2A7CCE7B4D35F0E929A81FE047A059E20B7FF1A4
Email authentication weak
- SPF
-
v=spf1 mx ip4:149.56.132.196 ip4:52.58.72.172 ip4:80.73.113.113 include:spf.nl2go.com include:mail3.zfn.schule -allstrict (-all) - DMARC
- not published
- DKIM
- no key found at common selectors
Certificate (current)
Encryption Everywhere DV TLS CA - G2
Expires in 128 days
HTTP security headers
- present
-
- strict-transport-security
- referrer-policy
- findings
-
- missing Content Security Policy
- missing frame protection
- missing content type protection
- missing Permissions Policy
Header values
- referrer-policy
unsafe-url- strict-transport-security
max-age=31536000
zfn.de