What powers 
zfu.ch?
Last seen Aug 2026 · 22 technologies across 17 categories
Advertising
Analytics
Appointment scheduling
Caching
CDN
CMS
Cookie compliance
Ecommerce
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
UI frameworks
Web Servers
Webmail
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- Bytespider Allowed
- CCBot Allowed
- ClaudeBot Allowed
- cohere-training-data-crawler Allowed
- Diffbot Allowed
- FacebookBot Allowed
- GPTBot Allowed
- ImagesiftBot Allowed
Search and AI assistants
- Amazonbot Allowed
- OAI-SearchBot Allowed
- PerplexityBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 21 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 56% phone
- 44% desktop
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.07 / 10 · ranked #524,839 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 25.1 MB · 71 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on WEBERCLOUD (193.111.100.87)
- DNS: weber.cloud
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Sectigo, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 9,190,813, 4 hosts
- Verified with: Google, Microsoft 365, Zoho
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Calendly Mar 2026
- detected Cart Functionality Mar 2026
- detected Choices Mar 2026
- detected Cloudflare Mar 2026
- detected Cloudflare Bot Management Mar 2026
- detected reCAPTCHA Mar 2026
- detected Swiper Mar 2026