What powers 
zfn.de?
Last seen Aug 2026 · 23 technologies across 14 categories
Analytics
CMS
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 80% phone
- 14% desktop
- 6% tablet
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.52 / 10 · ranked #869,353 of all domains
28 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 150 ms |
| CLS | 0.1 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German (Germany)
- Weight: 2.8 MB · 111 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Hetzner (188.40.220.150, IPv6)
- DNS: Amazon Route 53
- Email: zfn.de
- Email security: SPF (hard fail), no DMARC record
- SSL: DigiCert, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 11,378,948, 5 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| zfn.de | 19 |
| www.zfn.de | 14 |
| www.oam.zfn.de | 11 |
| oam.zfn.de | 10 |
Full technology history →
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Recent changes
- detected core-js Dec 2025
- detected Facebook Pixel Dec 2025
- detected Google Analytics Dec 2025
- detected Google Tag Manager Dec 2025