What powers 
winfas.cz?
Last seen Aug 2026 · 15 technologies across 12 categories
Analytics
CDN
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #367,112 of all domains
99 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 3.5 MB · 59 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- WinFAS software s.r.o.
- Profiles: Facebook
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on SATT-AS (31.31.227.66, IPv6)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 3072, expires Dec 2026
- Common Crawl link graph: rank 2,255,049, 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 |
|---|---|
| www.winfas.cz | 11 |
| podpora.winfas.cz | 7 |
Full technology history →
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Recent changes
- detected Microsoft 365 Dec 2025