What powers retrovykup.cz?
Last seen Jun 2026 · 18 technologies across 12 categories
Analytics
Google Analytics
since Mar 2024
Caching
Varnish
since Feb 2025
CDN
cdnjs
since Jun 2025
Cloudflare
since Jun 2025
Fastly
since Feb 2025
jsDelivr
since Feb 2025
Unpkg
since Jun 2025
CMS
Google Sites
since Mar 2024
Databases
Font scripts
Google Font API
since Mar 2024
JavaScript libraries
Live chat
WhatsApp Business Chat
since Mar 2025
Miscellaneous
Open Graph
since Mar 2024
PaaS
GitHub Pages
since Feb 2025
UI frameworks
Tailwind CSS
since Feb 2025
Audience
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 1.5 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- CDN: Fastly
- Weight: 0.5 MB · 15 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| retrovykup.cz | 13 |
| www.retrovykup.cz | 6 |
Full technology history →
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Recent changes
- detected Firebase May 2026