What powers zenner.de?
Last seen Aug 2026 · 26 technologies across 17 categories
Caching
CMS
Databases
Ecommerce
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Page builders
Performance
Programming languages
Security
SEO
Video players
Web servers
WordPress plugins
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
- 60% phone
- 40% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.98 / 10 · ranked #583,693 of all domains
64 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German (Germany)
- Weight: 7.1 MB · 75 requests
- WordPress theme: fbo-zenner-de · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on FROXLOR (185.123.52.83, IPv6)
- Email: sophos.com
- Email security: no SPF record, no DMARC record
- SSL: DigiCert, RSA 2048, wildcard, expires Oct 2026
- Common Crawl link graph: rank 13,429,843, 4 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| zenner.de | 22 |
| www.zenner.de | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped WordPress Super Cache Jan 2026
- detected HSTS Nov 2025